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Recent review article by S. Samuel "On the speed of gravity and the Jupiter/Quasar measurement" published in the International Journal of Modern Physics D13, 1753 (2004) provides the reader with a misleading "theory" of the relativistic…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Sergei M. Kopeikin

We showed in a recent article (Lawrence et. al., 2023, Quantum 7, 1015), that relative facts (outcomes), a central concept in Relational Quantum Mechanics, are inconsistent with Quantum Mechanics. We proved this by constructing a…

量子物理 · 物理学 2024-07-01 Jay Lawrence , Marcin Markiewicz , Marek Żukowski

It has been claimed in \cite{1}, that the idea proposed in \cite{2} has certain mistakes based on arguments of energy conditions and others. Additionally, some of the key arguments of the paper are criticized. Here we demonstrate that the…

广义相对论与量子宇宙学 · 物理学 2024-07-19 Ivan Arraut

Data from the Atacama Cosmology Telescope (ACT) and the South Pole Telescope (SPT), combined with the nine-year data release from the WMAP satellite, provide very precise measurements of the cosmic microwave background (CMB) angular…

Harrison's argument against the interpretation of the cosmological redshift as a Doppler effect is revisited, exaggerated, and discussed. The context, purpose, and limitations of the interpretations of this phenomenon are clarified.

广义相对论与量子宇宙学 · 物理学 2015-05-14 Valerio Faraoni

In a recent article in {\em Modern Physics Letters} {\bf A}, Gentry proposed a new static cosmological model that seeks to explain the Hubble relation as a combination of gravitational and Doppler red shifts. We show that Gentry's model,…

天体物理学 · 物理学 2010-04-28 S. Carlip , R. Scranton

It is shown that the new observed redshift distributions of various flux-limited samples of radio sources in general are consistent with the predictions of two basic evolutionary models published by Condon (1984) and Dunlop and Peacock…

天体物理学 · 物理学 2016-01-27 J. Machalski , M. Jamrozy

Adrian Kent has recently presented a critique [arXiv:2307.06191] of our paper [Nat. Comms. 10, 1361 (2019)] in which he claims to refute our main result: the measurement postulates of quantum mechanics can be derived from the rest of…

量子物理 · 物理学 2025-01-15 Lluís Masanes , Thomas D. Galley , Markus P. Müller

We present a counter example to a theorem given by Amir {\em et al.} J. Math. Phys. {\bf 35}, 3005 (1994). We also comment on a misleading statements of the same reference.

广义相对论与量子宇宙学 · 物理学 2009-10-28 R. Bertolotti , G. Contreras , L. A. Núñez , U. Percoco , J. Carot

According to the socalled "quasi-metric" framework developed elsewhere, the cosmic expansion applies directly to gravitationally bound systems. This prediction has a number of observable consequences, none of which are in conflict with…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Dag Østvang

We challenge the widely held belief that the cosmological principle is an obvious consequence of the observed isotropy of the cosmic microwave background radiation, combined with the Copernican principle. We perform a detailed analysis of a…

天体物理学 · 物理学 2009-10-31 R. K. Barrett , C. A. Clarkson

We reply to L.P. Grishchuk's comment (gr-qc/9801011) on our paper ``The Influence of Cosmological Transitions on the Evolution of Density Perturbations'' (Phys. Rev. D 57, 3302, 1998). We show that his points of criticism are not correct.

广义相对论与量子宇宙学 · 物理学 2007-05-23 Jerome Martin , Dominik J. Schwarz

This paper has been removed by arXiv administrators because it plagiarizes gr-qc/0410004, gr-qc/0603075, and others. This paper also has excessive overlap with the following papers also written by the authors or their collaborators:…

广义相对论与量子宇宙学 · 物理学 2019-10-21 Sezgin Aygun , Ismail Tarhan , Husnu Baysal

Recently, an axially symmetric spacetime with causality violation is appeared in Ref. [1]. There, author presented a type III metric with vanishing expansion, shear and twist. The matter-energy represents a pure radial field with a negative…

广义相对论与量子宇宙学 · 物理学 2021-05-18 Faizuddin Ahmed

One of the most outstanding problems of the standard model of cosmology today is the problem of cosmological constant/dark energy. It corresponds to about 73 per cent of the energy content of the universe gone missing. I hereby postulate a…

综合物理 · 物理学 2012-10-08 Serkan Zorba

Byrne and Hall (1999) criticized the argument of Chalmers (1996) in favor of the Everett-style interpretation. They claimed to show ``the deep and underappreciated flaw in ANY Everett-style interpretation''. I will argue that it is possible…

量子物理 · 物理学 2007-05-23 L. Vaidman

With regard to the recently published article, ``Y.-Q. Wang, et al., Physical mechanism of equiprobable exclusion network with heterogeneous interactions in phase transitions: Analytical analyses of steady state evolving from initial state,…

统计力学 · 物理学 2022-01-19 Takahiro Ezaki

We are at a specific period of modern cosmology, during which the large increase of the amount of data leads to the idea that the determination of cosmological parameters has been achieved with a rather good precision. There is a large…

天体物理学 · 物理学 2017-08-23 A. Blanchard

During the last ten years astrophysical cosmology has brought three remarkable results of deep impact for fundamental physics: the existence of non-baryonic dark matter, the (nearly) flatness of space, the domination of the density of the…

天体物理学 · 物理学 2007-05-23 Alain Blanchard

Modern cosmological theory is based on the Friedmann--Robertson--Walker (FRW) metric. Often written in terms of co-moving coordinates, this well-known solution to Einstein's equations owes its elegant and highly practical formulation to the…

综合物理 · 物理学 2018-09-14 Fulvio Melia