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 →
On separable states in relativistic quantum field theory. (arXiv:2304.03120v1 [gr-qc]) from gr-qc updates on arXiv.org by Ko Sanders Fri Apr 07 2023 09:03:53 (23 hours) # 1. We initiate an investigation into separable, but physically reasonable, states in relativistic quantum field theory. In particular we will consider the minimum amount of energy density needed to ensure the existence of… Read more →
Taking Approximations Seriously: The Cases of the Chew and the Nambu-Jona-Lasinio Models from PhilSci-Archive: No conditions. Results ordered -Date Deposited. Sat Feb 18 2023 03:36:22 (13 hours) # 1. Ruiz de Olano, Pablo and Fraser, James D. and Gaudenzi, Rocco and Blum, Alexander S. (2022) Taking Approximations Seriously: The Cases of the Chew and the Nambu-Jona-Lasinio Models. [Preprint] Send… Read more →
A Simple Derivation of the Gertsenshtein Effect. (arXiv:2301.02072v1 [gr-qc]) from gr-qc updates on arXiv.org by Andrea Palessandro, Tony Rothman Fri Jan 06 2023 09:57:34 (1 day) # 1. As shown by Gertsenshtein in 1961, an external magnetic field can catalyze the mixing of graviton and photon states in a manner analogous to neutrino-flavor oscillations. We first present a straightforward… Read more →
Russell on Weyl’s unified field theory. (arXiv:2208.08495v1 [physics.hist-ph]) 上午10:36 | physics.hist-ph updates on arXiv.org Authors: C. Romero In 1918, H. Weyl proposed a unified theory of gravity and electromagnetism based on a generalization of Riemannian geometry. With hindsight we now could say that the theory carried with it some of the most original ideas that inspired the physics of the twentieth… Read more →
A preference for Dynamical Dark Energy?. (arXiv:2107.14129v1 [astro-ph.CO]) 上午9:55 | gr-qc updates on arXiv.org Authors: David Benisty, Denitsa Staicova Dynamical Dark Energy (DDE) is a possible solution to the Hubble tension. This work analyses the combination of Baryon Acoustic Oscillation (BAO) data that include $19$ points from the range $0.11 \le z \le 2.40$ and additional points from the Cosmic Microwave Background… Read more →
The hydrogen atom: consideration of the electron self-field. (arXiv:2101.02202v1 [quant-ph]) 上午9:31 | Leon V. Biguaa, Vladimir V. Kassandrov | quant-ph updates on arXiv.org We substantiate the need for account of the proper electromagnetic field of the electron in the canonical problem of hydrogen in relativistic quantum mechanics. From mathematical viewpoint, the goal is equivalent to determination of the spectrum of… Read more →
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R. E. Kastner [Show Biography]
Abstract | Full Text Download (298k)
Vacuum entanglement harvesting with a zero mode. (arXiv:2002.11790v1 [quant-ph]) 下午12:05 | Erickson Tjoa, Eduardo Martín-Martínez | quant-ph updates on arXiv.org We investigate vacuum entanglement harvesting in the presence of a zero mode. We show that, for a variety of detector models and couplings (namely, Unruh-DeWitt qubit and harmonic oscillator detectors, amplitude and derivative coupling), the results are strongly dependent on… Read more →
Joseph Polchinski: A Biographical Memoir. (arXiv:2002.02371v1 [physics.hist-ph]) 上午9:47 | physics.hist-ph updates on arXiv.org Authors: Raphael Bousso, Fernando Quevedo, Steven Weinberg Joseph Polchinski (1954-2018), one of the the leading theoretical physicists of the past 50 years, was an exceptionally broad and deep thinker. He made fundamental contributions to quantum field theory, advancing the role of the renormalization group, and to cosmology, addressing the cosmological… Read more →
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 →
