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Mário J. de Oliveira
Sat Jul 15 2023 10:10:01 (20 minutes)
# 1.
From classical stochastic equations of motion we derive the quantum Schr\”odinger equation. The derivation is carried out by assuming that the real and imaginary parts of the wave function $\phi$ are proportional to the coordinates and momenta associated to the degrees of freedom of an underlying classical system. The wave function $\phi$ is assumed to be a complex time dependent random variable that obeys a stochastic equation of motion that preserves the norm of $\phi$. The quantum Liouville equation is obtained by considering that the stochastic part of the equation of motion changes the phase of $\phi$ but not its absolute value. The Schr\”odinger equation follows from the Liouville equation. The wave function $\psi$ obeying the Schr\”odinger equation is related to the stochastic wave function by $|\psi|^2=\langle|\phi|^2\rangle$.
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Jonte R. Hance, Ming Ji, Holger F. Hofmann
Sat Jul 15 2023 10:09:18 (21 minutes)
# 2.
We analyse the quantum Cheshire cat using contextuality theory, to see if this can tell us anything about how best to interpret this paradox. We show that this scenario can be analysed using the relation between three different measurements, which seem to result in a logical contradiction. We discuss how this contextual behaviour links to weak values, and coherences between prohibited states. Rather than showing a property of the particle is disembodied, the quantum Cheshire cat instead demonstrates the effects of these coherences, which are typically found in pre- and postselected systems.
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Sat Jul 15 2023 00:55:44 (9 hours)
# 3.
Kozlov, Anatolii (2023) Scientific Experiments Beyond Surprise and Beauty. [Preprint]
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Sat Jul 15 2023 00:53:07 (9 hours)
# 4.
Stoica, Ovidiu Cristinel (2023) Are observers reducible to structures? [Preprint]
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Sophia Chen
Fri Jul 14 2023 18:00:00 (16 hours)
# 5.
Author(s): Sophia Chen
A friction-like quantum force could accelerate the motion of a rotating nanometer-diameter sphere when the sphere sits next to a graphene-coated surface.
[Physics 16, s99] Published Fri Jul 14, 2023
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Fri Jul 14 2023 00:52:26 (1 day)
# 6.
Szabo, Laszlo E. (2023) Physicalism Without the Idols of Mathematics. Foundations of Science.
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Fri Jul 14 2023 00:49:57 (1 day)
# 7.
Oldofredi, Andrea (2023) Orthodox or Dissident? The Evolution of Bohm’s Ontological Reflections in the 1950s. [Preprint]
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Marric Stephens
Thu Jul 13 2023 18:00:00 (1 day)
# 8.
Author(s): Marric Stephens
High-precision measurements of the Moon’s orbit show that iron and aluminum feel and exert gravitational forces equally.
[Physics 16, s97] Published Thu Jul 13, 2023
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Thu Jul 13 2023 08:00:00 (2 days)
# 9.
Nature Physics, Published online: 13 July 2023; doi:10.1038/s41567-023-02154-9
75 years ago, Claude E. Shannon’s ‘A mathematical theory of communication’ appeared in Bell Labs’s research journal, marking the birth of the discipline of information theory. This month, we celebrate the influence of Shannon’s work, as well as his eccentric attitude.
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Richard Brierley
Thu Jul 13 2023 08:00:00 (2 days)
# 10.
Nature Physics, Published online: 13 July 2023; doi:10.1038/s41567-023-02147-8
It’s time for some K-theory
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Thu Jul 13 2023 00:20:23 (2 days)
# 11.
Ovidiu Cristinel, Stoica (2023) Does a computer think if no one is around to see it? [Preprint]
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Julia Steinberg
Wed Jul 12 2023 18:00:00 (2 days)
# 12.
Author(s): Julia Steinberg
A new theory allows researchers to determine the ability of arbitrarily complex neural networks to perform recognition tasks on data with intricate structure.
[Physics 16, 108] Published Wed Jul 12, 2023
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Wed Jul 12 2023 05:55:25 (3 days)
# 13.
Del Santo, Flavio and Krizek, Gerd C. (2023) Against the “nightmare of a mechanically determined universe”: Why Bohm was never a Bohmian. [Preprint]
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Wed Jul 12 2023 05:46:43 (3 days)
# 14.
Rovelli, Carlo and Heilbron, John (2023) Matrix Mechanics Mis-Prized: Max Born’s Belated Nobelization. [Preprint]
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Tue Jul 11 2023 01:47:43 (4 days)
# 15.
Weinstein, Galina (2023) Unveiling the Connection: ER bridges and EPR in Einstein’s Research. [Preprint]
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Tue Jul 11 2023 01:46:41 (4 days)
# 16.
List, Christian (2023) The first-personal argument against physicalism. [Preprint]
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Sun Jul 09 2023 01:22:03 (6 days)
# 17.
Kastner, R. E. and Schlatter, Andreas (2023) A Note on Landauer’s Principle. [Preprint]
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Sun Jul 09 2023 01:20:07 (6 days)
# 18.
Freeborn, David Peter Wallis (2023) Sloppy Models, Renormalization Group Realism, and the Success of Science. [Preprint]
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Ivan Šupić and Nicolas Brunner
Fri Jun 30 2023 18:00:00 (2 weeks)
# 19.
Author(s): Ivan Šupić and Nicolas Brunner
Quantum theory allows for nonlocality without entanglement. Notably, there exist bipartite quantum measurements consisting of only product eigenstates, yet they cannot be implemented via local quantum operations and classical communication. In the present work, we show that a measurement exhibiting …
[Phys. Rev. A 107, 062220] Published Fri Jun 30, 2023
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Robert B. Griffiths
Wed Jun 28 2023 18:00:00 (2 weeks)
# 20.
Author(s): Robert B. Griffiths
A protocol for transmission of information between two parties introduced by Salih et al. [Phys. Rev. Lett. 110, 170502 (2013)] involves sending quantum amplitude back and forth through a quantum channel in a series of steps, rather than simply sending a signal in one direction. The authors claimed …
[Phys. Rev. A 107, 062219] Published Wed Jun 28, 2023
