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Weekly Papers on Quantum Foundations (49)

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Branches of the Black Hole Wave Function Need Not Contain Firewalls. (arXiv:1712.04955v1 [hep-th])  hep-th updates on arXiv.org on 2017-12-16 2:35am GMT Authors: Ning Bao, Sean M. Carroll, Aidan Chatwin-Davies, Jason Pollack, Grant N. Remmen We discuss the branching structure of the quantum-gravitational wave function that describes the evaporation of a black hole. A global wave function that initially describes a classical Schwarzschild geometry is continually… Read more →

Weekly Papers on Quantum Foundations (48)

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Landauer Defended: Reply to Norton  Philsci-Archive: No conditions. Results ordered -Date Deposited. on 2017-12-08 6:50pm GMT Ladyman, James and Robertson, Katie (2013) Landauer Defended: Reply to Norton. Studies in History and Philosophy of Modern Physics. ISSN 1355-2198 Can Quantum Particles Cross a Horizon?. (arXiv:1712.02637v1 [gr-qc])  hep-th updates on arXiv.org on 2017-12-08 8:05am GMT Authors: Merab Gogberashvili It is widely believed that… Read more →

International Conference on Quanta and Mind

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The International Conference on Quanta and Mind (ICQM2018) will be held at the Events Room at the J. Paul Leonard Library (LIB 121), San Francisco State University, 1600 Holloway Ave., San Francisco, California, from April 10th to 11th, 2018.  The goal of this conference is provide an interdisciplinary forum for renowned scholars from different areas of knowledge, particularly physics and… Read more →

Synchronization of thermal Clocks and entropic Corrections of Gravity

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Andreas Schlatter There are so called MOND corrections to the general relativistic laws of gravity, able to explain phenomena like the rotation of large spiral galaxies or gravitational lensing by certain galaxy clusters. We show that these corrections can be derived in the framework of synchronizing thermal clocks. We develop a general formula, which reproduces the deep MOND correction at large scales and… Read more →

Weekly Papers on Quantum Foundations (47)

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Inter-theory Relations in Quantum Gravity: Correspondence, Reduction, and Emergence  Philsci-Archive: No conditions. Results ordered -Date Deposited. on 2017-12-02 3:01am GMT Crowther, Karen (2017) Inter-theory Relations in Quantum Gravity: Correspondence, Reduction, and Emergence. [Preprint] Brane Theory, Presentism and the “Now” Problem  Philsci-Archive: No conditions. Results ordered -Date Deposited. on 2017-12-02 2:57am GMT Robertson, Douglas (2017) Brane Theory, Presentism and the “Now”… Read more →

Addendum to Quantum Wave Function Collapse of a System Having Three anti Commuting Elements

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Abstract : We indicate a new way in the solution of the problem of the quantum measurement . In past papers we used the well-known formalism of the density matrix using an algebraic approach in a two states quantum spin system S, considering the particular case of three anticommuting elements. We demonstrated that, during the wave collapse, we have a… Read more →

Weekly Papers on Quantum Foundations (46)

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On the history of the quantum. Introduction to the HQ4 special issue  ScienceDirect Publication: Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics on 2017-11-25 8:31pm GMT Publication date: November 2017 Source:Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics, Volume 60 Author(s): Jaume Navarro,… Read more →

Weekly Papers on Quantum Foundations (45)

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Geometry of quantum correlations in space-time. (arXiv:1711.05955v1 [quant-ph])  quant-ph updates on arXiv.org on 2017-11-17 2:42am GMT Authors: Zhikuan Zhao, Robert Pisarczyk, Jayne Thompson, Mile Gu, Vlatko Vedral, Joseph F. Fitzsimons The traditional formalism of non-relativistic quantum theory allows the state of a quantum system to extend across space, but only restricts it to a single instant in time, leading to distinction between theoretical treatments of spatial… Read more →

Particle or wave: there is no evidence of single photon delayed choice

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Michael Devereux (Los Alamos National Laboratory) Wheeler supposed that the way in which a single photon is measured in the present could determine how it had behaved in the past. He named such retrocausation delayed choice. Over the last forty years many experimentalists have claimed to have observed single-photon delayed choice. Recently, however, researchers have proven that the quantum wavefunction of a single photon… Read more →

Weekly Papers on Quantum Foundations (44)

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Niels Bohr’s Complementarity and Quantum Tunneling  Philsci-Archive: No conditions. Results ordered -Date Deposited. on 2017-11-03 10:28pm GMT Perovic, Slobodan (2017) Niels Bohr’s Complementarity and Quantum Tunneling. Opening the Pandora’s box of quantum spinor fields. (arXiv:1711.00544v1 [hep-th])  hep-th updates on arXiv.org on 2017-11-03 2:05am GMT Authors: L. Bonora, J. M. Hoff da Silva, R. da Rocha Lounesto’s classification of spinors is a comprehensive and… Read more →