Yair Mulian For almost 75 years, the general solution for the Schrödinger equation was assumed to be generated by a time-ordered exponential known as the Dyson series. We discuss under which conditions the unitarity of this solution is broken, and additional singular dynamics emerges. Then, we provide an alternative construction that is manifestly unitary, regardless of the choice of the… Read more →
How the Michelson and Morley experiment was reinterpreted by special relativity from physics.hist-ph by Alejandro Cassini, Leonardo Levinas Fri Jul 19 2024 12:26:11 (23 hours) # 1. arXiv:2407.12960v1 Announce Type: new Abstract: We elucidate how different theoretical assumptions bring about radically different interpretations of the same experimental result. We do this by analyzing special relativity as it was originally… Read more →
Gravitational redshift revisited: inertia, geometry, and charge from philsci Sat Aug 05 2023 00:58:16 (8 hours) # 1. Fankhauser, Johannes and Read, James (2023) Gravitational redshift revisited: inertia, geometry, and charge. [Preprint] Send To > Keep unreadDelete Eternal inflation and collapse theories. (arXiv:2308.01383v1 [gr-qc]) from gr-qc by R.L. Lechuga, D. Sudarsky, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de… Read more →
Collapse Dynamics Are Diffusive from PRL: General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. by Sandro Donadi, Luca Ferialdi, and Angelo Bassi Fri Jun 09 2023 18:00:00 (15 hours) # 1. Author(s): Sandro Donadi, Luca Ferialdi, and Angelo Bassi Noninterferometric experiments have been successfully employed to constrain models of spontaneous wave function collapse, which predict a violation of… Read more →
The cosmological frame principle and cosmic acceleration. (arXiv:2304.12733v1 [gr-qc]) from gr-qc updates on arXiv.org by Spiros Cotsakis, Jose P. Mimoso, John Miritzis Wed Apr 26 2023 08:57:12 (2 days) # 7. We discuss cosmological implications of the frame principle which states that physics is independent of frames. We show that there are frame-independent solutions that are globally stable, suggesting… Read more →
It is a standard view in quantum mechanics that two wave functions that differ only in the global phase represent the same physical state. In this paper, I argue that this standard view is wrong and the global phase is real in psi-ontic theories such as the de Broglie Bohm theory, the many-worlds interpretation and collapse theories of quantum mechanics.
Gravitational redshift induces quantum interference. (arXiv:2109.00728v1 [quant-ph]) 上午10:13 | David Edward Bruschi, Andreas W. Schell | quant-ph updates on arXiv.org We use quantum field theory in curved spacetime to show that gravitational redshift induces a unitary transformation on the quantum state of propagating photons. This occurs for realistic photons characterized by a finite bandwidth, while ideal photons with sharp frequencies… Read more →
Testing Bell inequalities in Higgs boson decays. (arXiv:2106.01377v1 [hep-ph]) 下午5:25 | Alan Barr | quant-ph updates on arXiv.org Higgs boson decays produce pairs of W bosons in a maximally entangled state, the spins of which can be expected to violate Bell inequalities. We show that the spin density matrix of the $W^\pm$ pair may be reconstructed experimentally from the directions… Read more →
Travis Norsen, Huw Price This is a dialogue between Huw Price and Travis Norsen, loosely inspired by a letter that Price received from J. S. Bell in 1988. The main topic of discussion is Bell’s views about retrocausal approaches to quantum theory, and their relevance to contemporary issues. Full text
Eliahu Cohen, Marina Cortês, Avshalom C. Elitzur, Lee Smolin (Submitted on 13 Feb 2019 (v1), last revised 19 Mar 2019 (this version, v2)) https://arxiv.org/abs/1902.05082v2 We describe a new form of retrocausality, which is found in the behaviour of a class of causal set theories, called energetic causal sets (ECS). These are discrete sets of events, connected by causal relations. They have three orders:… Read more →
Eliahu Cohen, Marina Cortês, Avshalom C. Elitzur, Lee Smolin (Submitted on 13 Feb 2019 (v1), last revised 19 Mar 2019 (this version, v2)) https://arxiv.org/abs/1902.05108v2 Of all basic principles of classical physics, realism should arguably be the last to be given up when seeking a better interpretation of quantum mechanics. We examine the de Broglie-Bohm pilot wave theory as a well developed example of… Read more →