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BEGIN:VEVENT
SUMMARY:Radosław Kycia (Cracow University of Technology)
DTSTART;VALUE=DATE-TIME:20200519T160000Z
DTEND;VALUE=DATE-TIME:20200519T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/1
DESCRIPTION:Title: C
artan Connection for Schrodinger equation. The nature of vacuum\nby Ra
dosław Kycia (Cracow University of Technology) as part of QM Foundations
& Nature of Time seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QMFNoT/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Arkadiusz Jadczyk (Toulouse\, CNRS)
DTSTART;VALUE=DATE-TIME:20200526T160000Z
DTEND;VALUE=DATE-TIME:20200526T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/2
DESCRIPTION:Title: T
ime of arrival in quantum theory\nby Arkadiusz Jadczyk (Toulouse\, CNR
S) as part of QM Foundations & Nature of Time seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QMFNoT/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200602T160000Z
DTEND;VALUE=DATE-TIME:20200602T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/3
DESCRIPTION:Title: R
eview of book "The universe in helium droplet" by G. Volovik\nby Krzys
ztof Pomorski (University College Dublin) as part of QM Foundations & Natu
re of Time seminar\n\n\nAbstract\nThere are fundamental relations between
three vast areas of physics: particle physics\, cosmology\, and condensed
matter physics. The fundamental links between the first two areas — in o
ther words\, between micro- and macro-worlds — have been well establishe
d. There is a unified system of laws governing the scales from subatomic p
articles to the cosmos and this principle is widely exploited in the descr
iption of the physics of the early universe. This book aims to establish a
nd define the connection of these two fields with condensed matter physics
. According to the modern view\, elementary particles (electrons\, neutrin
os\, quarks\, etc.) are excitations of a more fundamental medium called th
e quantum vacuum. This is the new ‘aether’ of the 21st century. Electr
omagnetism\, gravity\, and the fields transferring weak and strong interac
tions all represent different types of the collective motion of the quantu
m vacuum. Among the existing condensed matter systems\, a quantum liquid c
alled superfluid 3He-A most closely represents the quantum vacuum. Its qua
siparticles are very similar to the elementary particles\, while the colle
ctive modes are analogues of photons and gravitons. The fundamental laws o
f physics\, such as the laws of relativity (Lorentz invariance) and gauge
invariance\, arise when the temperature of the quantum liquid decreases. \
n\nBook: http://www.issp.ac.ru/ebooks/books/open/The_Universe_in_a_Helium_
Droplet.pdf\n
LOCATION:https://researchseminars.org/talk/QMFNoT/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ilan Roth (Berkeley)
DTSTART;VALUE=DATE-TIME:20200609T160000Z
DTEND;VALUE=DATE-TIME:20200609T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/4
DESCRIPTION:Title: F
rom Braids to Knots\; Topological features in Solar Magnetic Fields – an
d beyond…\nby Ilan Roth (Berkeley) as part of QM Foundations & Natur
e of Time seminar\n\n\nAbstract\nThe generally accepted structure of magne
tic fields depicts them as field lines in $R^3$ with curvature\, rotation
and wiggles\, satisfying $\\nabla\\cdot B=0$. Their observed configuration
allows us to implement the powerful topological methods\, opening a new v
enue for an interpretation of various solar\, interplanetary and astrophys
ical phenomena. Direct imaging of the coronal fields pinpoints to their br
aiding structure\, large solar wind field reversal (switchback) and interm
ittent fading of energetic flare ions suggest that coronal braided field m
ay have been carried by the solar wind. The interconnection between the ma
thematical braids and knots is applied to the topologically non-trivial ma
gnetized structures and their dynamics\, from solar corona and the interpl
anetary medium to the astrophysical Herbig – Haro jets. The topological
invariants attached to a given knot/braid become the crucial factor in the
evolution and interpretation of the phenomena in space. The methods invol
ved cover classical as well as analogues of quantum procedures. The analys
is results in conjectures regarding (i) stability of coronal magnetic loop
s under large oscillations\, (ii) their evolution through successive emerg
ence/decay of heated magnetic braids\, (iii) their morphism into the solar
wind knotty structures and (iv) large scale narrow jets emitted in star-f
orming regions. These conjectures may contribute significantly to the unde
rstanding of physical processes in the lab and in solar/astrophysical medi
um\, particularly in the dynamo produced magnetic structures as observed b
y Parker Solar Probe.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Manfried Faber (TU Wien)
DTSTART;VALUE=DATE-TIME:20200616T160000Z
DTEND;VALUE=DATE-TIME:20200616T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/5
DESCRIPTION:Title: T
opological excitations of a scalar SO(3)-theory\nby Manfried Faber (TU
Wien) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nW
e discuss a model with only three degrees of freedom in Minkowski space-ti
me. This model is related to Dirac monopoles\, one can see it as a general
isation of the Sine-Gordon model from 1D to 3D\, or a modification of the
Skyrme model. Starting from a Lagrangian\, the intention of the model is t
o provide a geometrical description of electromagnetic phenomena. The mode
l has three topological quantum numbers which can be compared to the prope
rties of charge\, spin and photon number. We discuss stable solitonic solu
tions and compare them to the properties of electrons and photons.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jarek Duda (Jagiellonian University)
DTSTART;VALUE=DATE-TIME:20200623T160000Z
DTEND;VALUE=DATE-TIME:20200623T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/6
DESCRIPTION:Title: T
opological charge as electric charge – can we get all particles this way
?\nby Jarek Duda (Jagiellonian University) as part of QM Foundations &
Nature of Time seminar\n\n\nAbstract\nWe can repair Gauss law to return o
nly integer charges (as in nature) by interpreting EM field as curvature o
f some e.g. vector field\, this way counting winding number (topological c
harge) using Gauss-Bonnet theorem as Gauss law (Faber’s model). I will l
ightly introduce it and would like to discuss if we could expand it to a f
ield which excitations (e.g. topological) agree with the entire particle p
hysics\, could be effectively described by something close to the Standard
Model. \n\nKind of superfuid biaxial nematic: 3 distinguishable axes in e
very point (using tensor field instead of molecules) seems quite promising
here. They can form hedgehog configuration with one of 3 axes\, getting 3
leptons (as spatial dimensions)\, trying to align the second axis for it
we cannot do it due to the hairy ball theorem (no naked charges – lepton
s need magnetic dipoles)\, then baryon-like configurations enforcing some
positive charge: needed to be compensated in neutron (hence it is heavier
than proton)\, charge is shared in deuteron for binding (leading to observ
ed electric quadrupole moment).\n
LOCATION:https://researchseminars.org/talk/QMFNoT/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Łukasz Stępień (PU Krakow)
DTSTART;VALUE=DATE-TIME:20200630T160000Z
DTEND;VALUE=DATE-TIME:20200630T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/7
DESCRIPTION:Title: T
his and that on solitons and some their applications\nby Łukasz Stęp
ień (PU Krakow) as part of QM Foundations & Nature of Time seminar\n\n\nA
bstract\nI am going to talk about solitons. I will remind brieﬂy their h
istory and some fundamental facts from soliton theory. Next\, I will say a
bout one of the important tools for investigation of soliton equations: Bo
gomolny (Bogomol’nyi) equations\, called also as Bogomolny decomposition
\, and I will present also an example - Bogomolny equations in the so-call
ed baby BPS Skyrme model. Later I will say about a soliton model of partic
le.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Robert Brady (Cambridge)
DTSTART;VALUE=DATE-TIME:20200707T160000Z
DTEND;VALUE=DATE-TIME:20200707T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/8
DESCRIPTION:Title: I
n memoriam: Yves Couder\nby Robert Brady (Cambridge) as part of QM Fou
ndations & Nature of Time seminar\n\n\nAbstract\nYves Couder died on 2 Apr
il 2019. He showed how to make droplets of oil bounce on an oil surface\,
spawning a renewed interest in the net forces between oscillating systems.
Bouncing droplets are governed by the ordinary equations of Newtonian mec
hanics\, yet experimentally their motion mimics the known equations of spe
cial relativity\, electromagnetism\, and quantum mechanics. I will show wh
y this is the case\, in an idealised system where the pumping acceleration
can be neglected. I will then briefly discuss my ongoing research in a re
lated system in superfluid helium\, where pumping is superfluous and the p
redictions may be tested against experiment.\n\nIn order to maintain your
interest\, and to pay respect to Yves\, I will give an interpretation of h
is work which is controversial. If his results had been known 100 years ag
o\, they would probably have changed the debate\, from 1905 to 1922\, betw
een Einstein and Lorentz on how to interpret the equations of special rela
tivity.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Arkadiusz Jadczyk (Toulouse\, CNRS)
DTSTART;VALUE=DATE-TIME:20200714T160000Z
DTEND;VALUE=DATE-TIME:20200714T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/9
DESCRIPTION:Title: O
rder out of chaos. Fractals out of qubits\nby Arkadiusz Jadczyk (Toulo
use\, CNRS) as part of QM Foundations & Nature of Time seminar\n\n\nAbstra
ct\nTheory can predict what happens when several non-commuting observables
are being simultaneously measured. The results of such repetitive measur
ements are random and chaotic\, but distinct and organized fractal attract
ors may arise. We study quantum iterated function systems for a qubit\, wh
ere measurements and quantum jumps are implemented by Moebius transformati
ons of the Bloch sphere. As an example\, a quantum fractal resulting from
non-commuting parabolic transformations is discussed in detail.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kenneth Wharton (SJSU)
DTSTART;VALUE=DATE-TIME:20200721T160000Z
DTEND;VALUE=DATE-TIME:20200721T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/10
DESCRIPTION:Title:
Bell's Theorem: Implications and Misapprehensions\nby Kenneth Wharton
(SJSU) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nD
espite the fact that Bell’s Theorem tells us something profound about ou
r universe\, there are still many misapprehensions about exactly what it m
eans\, even among physicists. For example\, it is often incorrectly chara
cterized as disproving hidden variables\, or proving action-at-a-distance.
Even experts in quantum foundations are sometimes unaware of subtleties
concerning the role of an “arrow of time” in Bell’s analysis and the
possibilities of using retrocausation to model quantum entanglement in a
locally-mediated\, spacetime-based framework. This talk will attempt to c
larify these and other issues\, detailing an explicit retrocausal model wh
ich accounts for maximally entangled states. \n\nBased on "Colloquium: Be
ll's theorem and locally mediated reformulations of quantum mechanics"\, K
.B. Wharton and N. Argaman. Published online\, 18 May 2020\, in the 1 Apr
il 2020 issue of Reviews of Modern Physics (Vol. 92\, No. 2): URL: https:/
/link.aps.org/doi/10.1103/RevModPhys.92.021002 (If you do not have access
to Rev Mod Phys\, a similar arXiv version can be found here: https://arxi
v.org/abs/1906.04313 )\n
LOCATION:https://researchseminars.org/talk/QMFNoT/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jarek Duda (Jagiellonian University)
DTSTART;VALUE=DATE-TIME:20200728T160000Z
DTEND;VALUE=DATE-TIME:20200728T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/11
DESCRIPTION:Title:
Discussion: are there experiments proving or disproving time symmetry?
\nby Jarek Duda (Jagiellonian University) as part of QM Foundations & Natu
re of Time seminar\n\n\nAbstract\nTime/CPT symmetry is at heart of many mo
dels of physics\, like unitary evolution in quantum mechanics\, or Lagrang
ian formalism we use from classical mechanics\, electromagnetism\, up to g
eneral relativity and quantum field theories. However\, this symmetry is q
uite nonintuitive\, very difficult to really accept – mainly due to ther
modynamical counterarguments. \nLet us try to discuss these arguments\, es
pecially experiment-based. I will present some for us to discuss (adding m
ore is welcomed)\, for example: Wheeler’s\, delayed choice quantum erase
r (DCQE)\, “asking photons where they have been”\, “photonic quantum
routers”\, Shor algorithm as more sophisticated DCQE\, also: Anderson l
ocalization (starting with rho~sin^2 in [0\,1])\, Born rule\, Bell violati
on.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (UC Dublin)
DTSTART;VALUE=DATE-TIME:20200804T160000Z
DTEND;VALUE=DATE-TIME:20200804T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/12
DESCRIPTION:Title:
From superfluidity to cosmology and elementary particles (based on "The un
iverse in helium droplet" by G. Volovik”)\nby Krzysztof Pomorski (UC
Dublin) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\
nThere are fundamental relations between three vast areas of physics: part
icle physics\, cosmology\, and condensed matter physics. This book aims t
o establish and define the connection of these two fields with condensed m
atter physics. According to the modern view\, elementary particles (electr
ons\, neutrinos\, quarks\, etc.) are excitations of a more fundamental med
ium called the quantum vacuum. This is the new ‘aether’ of the 21st ce
ntury. Electromagnetism\, gravity\, and the fields transferring weak and s
trong interactions all represent different types of the collective motion
of the quantum vacuum. Among the existing condensed matter systems\, a qua
ntum liquid called superfluid 3He-A most closely represents the quantum va
cuum. Its quasiparticles are very similar to the elementary particles\, wh
ile the collective modes are analogues of photons and gravitons. The 3He A
–B interface provides an unprecedented type of superfluid boundary betwe
en two degenerate macroscopically coherent quantum systems which display d
ifferent broken symmetries and rich family of topological defects.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Christopher Halcrow (Leeds)
DTSTART;VALUE=DATE-TIME:20200811T160000Z
DTEND;VALUE=DATE-TIME:20200811T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/13
DESCRIPTION:Title:
Nuclei as Skyrmions\nby Christopher Halcrow (Leeds) as part of QM Foun
dations & Nature of Time seminar\n\n\nAbstract\nIn standard models of nucl
ear physics\, nuclei are described as point particles with spin and isospi
n degrees of freedom. The baryon number (the number of protons plus the nu
mber of neutrons) is conserved in nuclear interactions - this fact is usua
lly put in “by hand”. In contrast\, the Skyrme model describes nuclei
as topological solitons. The baryon number is conserved due to a topologic
al invariant of the theory while spin and isospin appear as quantised isom
etries of the system. This talk is in two parts: first\, I will try and co
nvince you that the Skyrme model is a reasonable model of nuclear physics.
It reproduces several known phenomena: nuclear clustering\, isospin symme
try and rotational bands in energy spectra. I will then show that the Skyr
me model is very different than standard nuclear models: the notion of pos
ition breaks down\, the Deuteron is a torus and novel scatterings can take
place. These surprising facts can give new explanations for some nuclear
properties. For instance\, the existence of a toroidal Skyrmion explains t
he attractive spin-orbit force in the nucleon-nucleon interaction as shown
recently in arXiv:2007.01304. I will explain this phenomena assuming no b
ackground knowledge of Skyrmions or nuclear physics.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Robert Close (Clark College)
DTSTART;VALUE=DATE-TIME:20200818T160000Z
DTEND;VALUE=DATE-TIME:20200818T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/14
DESCRIPTION:Title:
Classical Wave Mechanics\nby Robert Close (Clark College) as part of Q
M Foundations & Nature of Time seminar\n\n\nAbstract\nThis is an attempt t
o describe elementary particles using classical continuum mechanics. First
\, a wave equation is derived for infinitesimal shear waves in an elastic
solid. Next\, a change of variables is used to describe the waves in terms
of classical spin angular momentum density\, which is the field whose cur
l is equal to twice the classical momentum density. The second-order wave
equation is then converted to a first-order Dirac equation. Plane wave sol
utions are presented\, and the dynamical operators of relativistic quantum
mechanics are derived. Wave interference gives rise to the Pauli exclusio
n principle and electromagnetic potentials.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jarek Duda (Jagiellonian University)
DTSTART;VALUE=DATE-TIME:20200901T160000Z
DTEND;VALUE=DATE-TIME:20200901T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/15
DESCRIPTION:Title:
Maximal Entropy Random Walk: repairing diffusion-QM disagreement\nby J
arek Duda (Jagiellonian University) as part of QM Foundations & Nature of
Time seminar\n\n\nAbstract\nConsidering diffusion or chaos in [0\,1] range
leads to uniform stationary probability distribution rho=1. In contrast\,
QM predicts localized rho~sin^2 there. This disagreement is crucial e.g.
for semiconductors – standard diffusion would predict nearly uniform ele
ctron distribution\, allowing them to flow – incorrectly expecting it to
be a conductor. In contrast\, QM predicts strong e.g. Anderson localizati
on preventing conductance.\n\nMaximal Entropy Random Walk (MERW) allows to
understand and repair this disagreement - turns out that standard random
walk often only approximates the (Jaynes) principle of maximal entropy\, w
hich is crucial for statistical physics models – MERW is the most random
among random walk\, thanks of it leading to stationary probability distri
bution exactly as quantum ground state – with localization property. In
contrast to standard random walk\, MERW is also scale-free\, time symmetri
c and nonlocal. It also has many other applications (~160 citations).\n
LOCATION:https://researchseminars.org/talk/QMFNoT/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Fritz W. Bopp (Siegen U.)
DTSTART;VALUE=DATE-TIME:20200915T160000Z
DTEND;VALUE=DATE-TIME:20200915T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/16
DESCRIPTION:Title:
How to Avoid Absolute Determinismin Two Boundary Quantum Dynamics\nby
Fritz W. Bopp (Siegen U.) as part of QM Foundations & Nature of Time semin
ar\n\n\nAbstract\nArguments for a two boundary theory are outlined. A quan
tum statistical effect plays a central role. Plausible concepts of how in
such a theory an approximate causal macroscopic theory can emerge are pres
ented. A problem with simple implementations of the two boundary theory is
that effective or real willful decisions can not be added as there is no
consecutive macroscopic time ordering of such effective or real willful de
cision points. We present a somewhat drastic but somehow beautiful way to
avoid it.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Álvaro García López (URJC)
DTSTART;VALUE=DATE-TIME:20200929T160000Z
DTEND;VALUE=DATE-TIME:20200929T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/17
DESCRIPTION:Title:
On an electrodynamic origin of quantum fluctuations\nby Álvaro Garcí
a López (URJC) as part of QM Foundations & Nature of Time seminar\n\n\nAb
stract\nWe use the Liénard–Wiechert potential to show that very violent
fluctuations are experienced by an electromagnetic charged extended parti
cle when it is perturbed from its rest state. The feedback interaction of
Coulombian and radiative fields among different charged parts of the parti
cle makes uniform motion unstable. Then\, we show that radiative fields an
d radiation reaction produce dissipative and antidamping effects\, trigger
ing a self-oscillation. Finally\, we compute the self-potential\, which in
addition to rest and kinetic energy\, gives rise to a new contribution th
at shares features with the quantum potential. We suggest that this contri
bution to self-energy produces a symmetry breaking of the Lorentz group\,
bridging classical electromagnetism and quantum mechanics\n
LOCATION:https://researchseminars.org/talk/QMFNoT/17/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dagomir Kaszlikowski\, Pawel Kurzynski (NUS)
DTSTART;VALUE=DATE-TIME:20201006T160000Z
DTEND;VALUE=DATE-TIME:20201006T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/18
DESCRIPTION:Title:
Another take on negative probabilities?\nby Dagomir Kaszlikowski\, Paw
el Kurzynski (NUS) as part of QM Foundations & Nature of Time seminar\n\n\
nAbstract\nWe present preliminary studies of basic information-theoretic a
nd computational properties of negative binary probability distribution ca
lled nebit: p(0)=1+\\delta\, p(1)=-\\delta. We show an interesting computa
tional model based on quasi-stochastic processes between an ordinary bit a
nd nebit. Finally\, we show that some classical information processing pro
tocols can be more effective with an access to nebits.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/18/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marek Danielewski (AGH)
DTSTART;VALUE=DATE-TIME:20201229T170000Z
DTEND;VALUE=DATE-TIME:20201229T180000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/19
DESCRIPTION:Title:
Foundations of the Quaternion Quantum Mechanics\nby Marek Danielewski
(AGH) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nWe
show that quaternion quantum mechanics has well-founded mathematical root
s and can be derived from the model of the elastic continuum by French mat
hematician Augustin Cauchy\, i.e.\, it can be regarded as representing the
physical reality of elastic continuum. Starting from the Cauchy theory (c
lassical balance equations for isotropic Cauchy-elastic material) and usin
g the Hamilton quaternion algebra\, we present a rigorous derivation of th
e quaternion form of the non- and relativistic wave equations. The family
of the wave equations and the Poisson equation are a straightforward conse
quence of the quaternion representation of the Cauchy model of the elastic
continuum. This is the most general kind of quantum mechanics possessing
the same kind of calculus of assertions as conventional quantum mechanics.
The problem of the Schrödinger equation\, where imaginary ‘i’ should
emerge\, is solved. This interpretation is a serious attempt to describe
the ontology of quantum mechanics\, and demonstrates that\, besides Bohmia
n mechanics\, the complete ontological interpretations of quantum theory e
xists. The model can be generalized and falsified. To ensure this theory t
o be true\, we specified problems\, allowing exposing its falsity.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/19/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mark Hadley (Warwick)
DTSTART;VALUE=DATE-TIME:20210126T170000Z
DTEND;VALUE=DATE-TIME:20210126T180000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/20
DESCRIPTION:Title:
Time orientability. What it is and why it is important.\nby Mark Hadle
y (Warwick) as part of QM Foundations & Nature of Time seminar\n\n\nAbstra
ct\nI will explain what the orientability of time is\, in particular a spa
ce time that is not time orientable. In principle this can explain the qua
ntum world. It allows topology change in general relativity. I will show s
pace time structure with net electric charge from the source free Maxwell
equations. And the strange property for spin half arises naturally in part
icle models that are not time orientable. I’ll conclude by describing a
definitive test of time non orientability – with a positive result.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/20/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Paweł Błasiak (IFJ PAN)
DTSTART;VALUE=DATE-TIME:20211014T150000Z
DTEND;VALUE=DATE-TIME:20211014T160000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/21
DESCRIPTION:Title:
What is the weight of locality and free choice?\nby Paweł Błasiak (I
FJ PAN) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\n
Is physical reality local\, or does what we do here and now have an immedi
ate influence on events elsewhere? Do we have free choice or are our decis
ions predetermined? In this talk\, I will briefly recall how physicists un
derstand these concepts\, and how Bell’s theorem undermines our most che
rished intuitions about cause-and-effect on the fundamental level. I will
also show how to quantitatively compare the assumptions of locality and fr
ee choice\, with a view to better appreciate their role and weight for cau
sal (or realist) explanations of observed correlations. \n\nReference:\nP.
Blasiak\, E. M. Pothos\, J. M. Yearsley\, C. Gallus\, and E. Borsuk\n“V
iolations of locality and free choice are equivalent resources in Bell exp
eriments”\nPNAS 118 e2020569118 (2021)\nhttps://doi.org/10.1073/pnas.202
0569118\n\nPopular press release:\nEurekAlert!: https://www.eurekalert.org
/news-releases/671079\n
LOCATION:https://researchseminars.org/talk/QMFNoT/21/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Álvaro García López (URJC)
DTSTART;VALUE=DATE-TIME:20211029T150000Z
DTEND;VALUE=DATE-TIME:20211029T160000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/22
DESCRIPTION:Title:
Hidden fields preclude the demonstration of Bell-type theorem\nby Álv
aro García López (URJC) as part of QM Foundations & Nature of Time semin
ar\n\n\nAbstract\nWe demonstrate that classical local field theories can v
iolate Bell’s theorem. To this end\, we\nargue that the physical magnitu
des appearing in such theories correspond to hidden fields of dynamical na
ture. This requires reconsidering Bell’s proof in terms of random fields
\, what prevents the expression of the correlation integral as a spacetime
-independent variable. Then\, taking into account that the probability dis
tribution evolves in time\, we show that the spin-correlation cannot be ex
pressed in terms of a probability density defined on initial data\, which
is independent of the measurement process. Finally\, we derive a new inequ
ality that is not violated by quantum correlation functions of entangled s
pin pairs. Following recent results\, we propose that Maxwell’s classica
l electromagnetism and its general covariant formulation might be the so l
ong-desired hidden variable theory that produces quantum fluctuations.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/22/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jarek Duda (JU)
DTSTART;VALUE=DATE-TIME:20211111T160000Z
DTEND;VALUE=DATE-TIME:20211111T170000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/23
DESCRIPTION:Title:
Exploring resemblance between liquid crystals topological defects and part
icle physics\nby Jarek Duda (JU) as part of QM Foundations & Nature of
Time seminar\n\n\nAbstract\nThere are experimentally observed long-range
e.g. Coulomb-like interactions for topological defects in liquid crystals\
, suggesting investigation how far can we take this resemblance with parti
cle physics. I will discuss postulating skyrmion-like Lagrangian to get el
ectromagnetism for their effective dynamics\, interpreting filed curvature
as electric field - making Gauss law count (quantized) topological charge
. For biaxial nematic - with 3 distinguished axes\, hedgehogs of one of 3
axes are different mass realizations of the same topological charge - rese
mbling 3 leptons. Further baryon-like topological structures require charg
e\, which has to be compensated for neutron - suggesting why it is heavier
than proton. For analog of quantum phase there is derived Klein-Gordon-li
ke equation\n
LOCATION:https://researchseminars.org/talk/QMFNoT/23/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marian Kupczyński (UQO)
DTSTART;VALUE=DATE-TIME:20211125T160000Z
DTEND;VALUE=DATE-TIME:20211125T180000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/24
DESCRIPTION:Title:
Quantum nonlocality: how does nature do it?\nby Marian Kupczyński (UQ
O) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nLocal
realistic and stochastic hidden variable models define experimental proto
cols\, which are inconsistent with experimental protocols used in real Bel
l Tests. Therefore\, it is not surprising that they fail to describe corre
ctly the experimental data. In 2009 Nicholas Gisin claimed in Science\, th
at quantum correlations come from outside the space-time due to the quantu
m magic. Since we do not believe in magic\, we propose a locally causal ex
planation of these correlations. Neither super-determinism nor retro- caus
ality is needed\, nor is experimenter’s freedom of choice (EFO) compromi
sed. In our contextual model\, setting dependent variables describing meas
uring instruments are correctly introduced. Outcomes are predetermined bot
h by instrument variables and variables describing incoming correlated sig
nals at the moment of the measurement. There does not exist a joint probab
ility distribution of variables describing all the possible settings\, thu
s Bell inequalities may not be derived. In this talk\, based on the artic
les listed below\, we also explain in detail why the assumption called fre
e choice-no conspiracy-measurement independence has nothing to do with EFO
and should be rather called noncontextuality assumption. The violation of
Bell inequalities neither implies the nonlocality of Nature nor the viola
tion of EFO. It only confirms the contextuality of some observables in qu
antum domain and that outcomes are not predetermined before the experiment
is done.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/24/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Valeriy Sbitnev (Berkeley)
DTSTART;VALUE=DATE-TIME:20211209T160000Z
DTEND;VALUE=DATE-TIME:20211209T180000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/25
DESCRIPTION:Title:
Quaternion algebra on 4D superfluid quantum space-time. Gravitomagnetic eq
uations and something else\nby Valeriy Sbitnev (Berkeley) as part of Q
M Foundations & Nature of Time seminar\n\nInteractive livestream: http://t
h.if.uj.edu.pl/~dudaj/QMFNoT\n\nAbstract\nGravitomagnetic equations result
from applying quaternionic differential operators to the energy–momentu
m tensor. These equations are similar to the Maxwell’s EM equations. Bot
h sets of the equations are isomorphic after changing orientation of eithe
r the gravitomagnetic orbital force or the magnetic induction. The gravito
magnetic equations turn out to be parent equations generating the followin
g set of equations: (a) the vorticity equation giving solutions of vortice
s with nonzero vortex cores and with infinite lifetime\; (b) the Hamilton
–Jacobi equation loaded by the quantum potential. This equation in pair
with the continuity equation leads to getting the Schrödinger equation de
scribing a state of the superfluid quantum medium (a modern version of the
old ether)\; (c) gravitomagnetic wave equations loaded by forces acting o
n the outer space. These waves obey to the Planck’s law of radiation.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/25/
URL:http://th.if.uj.edu.pl/~dudaj/QMFNoT
END:VEVENT
BEGIN:VEVENT
SUMMARY:Giulia Rubino (Bristol)
DTSTART;VALUE=DATE-TIME:20211216T160000Z
DTEND;VALUE=DATE-TIME:20211216T180000Z
DTSTAMP;VALUE=DATE-TIME:20211209T082956Z
UID:QMFNoT/26
DESCRIPTION:Title:
Quantum superposition of thermodynamic evolutions with opposing time's arr
ows\nby Giulia Rubino (Bristol) as part of QM Foundations & Nature of
Time seminar\n\nInteractive livestream: http://th.if.uj.edu.pl/~dudaj/QMFN
oT\n\nAbstract\nMicroscopic physical laws are time-symmetric\, hence\, a p
riori there exists no preferential temporal direction. However\, the secon
d law of thermodynamics allows one to associate the "forward'' temporal di
rection to a positive variation of the total entropy produced in a thermod
ynamic process\, and a negative variation with its "time-reversal'' counte
rpart. This definition of a temporal axis is normally considered to apply
in both classical and quantum contexts. Yet\, quantum physics admits also
superpositions between forward and time-reversal processes\, whereby the t
hermodynamic arrow of time becomes quantum-mechanically undefined. In this
talk\, I will show that a definite thermodynamic time's arrow can be rest
ored by a quantum measurement of entropy production\, which effectively pr
ojects such superpositions onto the forward (time-reversal) time-direction
when large positive (negative) values are measured. Remarkably\, for smal
l values (of the order of plus or minus one)\, the amplitudes of forward a
nd time-reversal processes can interfere\, giving rise to entropy-producti
on distributions featuring a more or less reversible process than either o
f the two components individually\, or any classical mixture thereof.\n
LOCATION:https://researchseminars.org/talk/QMFNoT/26/
URL:http://th.if.uj.edu.pl/~dudaj/QMFNoT
END:VEVENT
END:VCALENDAR