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Weekly Papers on Quantum Foundations (45)

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Role of Quantum Optics in Synthesizing Quantum Mechanics and Relativity. (arXiv:1911.01642v2 [quant-ph] UPDATED) 上午9:43 | physics.hist-ph updates on arXiv.org Authors: Y. S. Kim Two-photon states produce enough symmetry needed for Dirac’s construction of the two-oscillator system which produces the Lie algebra for the O(3,2) space-time symmetry. This O(3,2) group can be contracted to the inhomogeneous Lorentz group which, according to Dirac,… Read more →

Weekly Papers on Quantum Foundations (44)

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On the status of conservation laws in physics: Implications for semiclassical gravity 上午11:20 | ScienceDirect Publication: Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern PhysicsScienceDirect RSShttps://www.sciencedirect.com/journal/studies-in-history-and-philosophy-of-science-part-b-studies-in-history-and-philosophy-of-modern-physicsRSS for NodeWed, 24 Jul 2019 09:46:42 GMTCopyright © 2019 Elsevier Ltd. All rights reservedImprints of the underlying structure of physical theoriesPublication date: Available online 12 July… Read more →

Weekly Papers on Quantum Foundations (43)

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Einstein’s Third Postulate. (arXiv:1506.09070v2 [physics.hist-ph] UPDATED) 2019年11月1日 星期五 下午4:01 | physics.hist-ph updates on arXiv.org Authors: Wolfgang Engelhardt Einstein’s own demonstration of time dilation taken from his book with L. Infeld (1938) is analyzed. His ingenious circumnavigation of an apparent discrepancy between clock synchronisation and Lorentz transformation is discussed. Finslerian geometrization of quantum mechanics in the hydrodynamical representation. (arXiv:1910.14114v1 [quant-ph]) 2019年11月1日 星期五… Read more →

Weekly Papers on Quantum Foundations (42)

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Direct measurement of a nonlocal entangled quantum state. (arXiv:1910.10933v1 [quant-ph]) 2019年10月25日 星期五 下午4:18 | quant-ph updates on arXiv.org Authors: Wei-Wei Pan, Xiao-Ye Xu, Yaron Kedem, Qin-Qin Wang, Zhe Chen, Munsif Jan, Kai Sun, Jin-Shi Xu, Yong-Jian Han, Chuan-Feng Li, Guang-Can Guo Entanglement and wave function description are two of the core concepts that make quantum mechanics such a unique theory. A method to directly measure the wave function, using Weak Values,… Read more →

Weekly Papers on Quantum Foundations (41)

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Experimental evidence for the Unruh effect. (arXiv:1903.00043v3 [gr-qc] UPDATED) 2019年10月18日 星期五 下午7:34 | gr-qc updates on arXiv.org Authors: Morgan H. Lynch, Eliahu Cohen, Yaron Hadad, Ido Kaminer We examine the radiation emitted by high energy positrons channeled into silicon crystal samples. The positrons are modeled as semiclassical vector currents coupled to an Unruh-DeWitt detector to incorporate any local change in the energy of the… Read more →

Weekly Papers on Quantum Foundations (40)

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MOND vs. dark matter in light of historical parallels. (arXiv:1910.04368v1 [astro-ph.GA]) 2019年10月11日 星期五 下午8:32 | physics.hist-ph updates on arXiv.org Authors: Mordehai Milgrom MOND is a paradigm that contends to account for the mass discrepancies in the Universe without invoking `dark’ components, such as `dark matter’ and `dark energy’. It does so by supplanting Newtonian dynamics and General Relativity, departing from them… Read more →

Weekly Papers on Quantum Foundations (39)

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An Entropic Dynamics Approach to Geometrodynamics. (arXiv:1910.01188v1 [gr-qc]) 下午12:34 | quant-ph updates on arXiv.org Authors: Selman Ipek, Ariel Caticha In the Entropic Dynamics (ED) framework quantum theory is derived as an application of entropic methods of inference. The physics is introduced through appropriate choices of variables and of constraints that codify the relevant physical information. In previous work, a manifestly covariant ED… Read more →

Weekly Papers on Quantum Foundations (38)

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Generalised Reichenbachian common cause systems 上午8:00 | Latest Results for Synthese Abstract The principle of the common cause claims that if an improbable coincidence has occurred, there must exist a common cause. This is generally taken to mean that positive correlations between non-causally related events should disappear when conditioning on the action of some underlying common cause. The extended interpretation… Read more →

Weekly Papers on Quantum Foundations (37)

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When is a set of questions to nature together with sharp answers to those questions in one-to-one correspondence with a set of quantum states?. (arXiv:1909.08834v1 [quant-ph]) 上午9:10 | quant-ph updates on arXiv.org Authors: Inge S. Helland A general question is posed to the quantum community. Partial results are formulated in a self-contained way. In particular, the title question is answered affirmatorily… Read more →

Weekly Papers on Quantum Foundations (36)

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Classical causal models cannot faithfully explain Bell nonlocality or Kochen-Specker contextuality in arbitrary scenarios. (arXiv:1909.05434v1 [quant-ph]) 下午12:56 | quant-ph updates on arXiv.org Authors: J. C. Pearl, E. G. Cavalcanti In a recent work, it was shown by one of us (EGC) that Bell-Kochen-Specker inequality violations in phenomena satisfying the no-disturbance condition (a generalisation of the no-signalling condition) cannot in general be explained… Read more →

Weekly Papers on Quantum Foundations (35)

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Proposal for a new quantum theory of gravity IV: Black hole entropy from non-commutative geometry and spontaneous localisation. (arXiv:1909.02434v1 [gr-qc]) 下午12:42 | quant-ph updates on arXiv.org Authors: Palemkota Maithresh, Tejinder P. Singh In our recently proposed theory of quantum gravity, a black hole arises from the spontaneous localisation of an entangled state of a large number of atoms of space-time-matter [STM]. Prior… Read more →