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The long-sought goal of room-temperature superconductivity has reportedly recently been realized in a carbonaceous sulfur hydride compound under high pressure, as reported by Snider et al. [1]. The evidence presented in that paper is…

Superconductivity · Physics 2021-08-31 J. E. Hirsch , F. Marsiglio

Two conjectures recently proposed by one of the authors are disproved

Metric Geometry · Mathematics 2011-05-25 P. G. L. Porta Mana , P. G. Lewis

Studying fundamental symmetries of Nature has proven fruitful in particle physics. I argue that recent results at the LHC, and the naturalness problem highlighted by them, provide a renewed motivation for tests of CPT symmetry as a probe…

High Energy Physics - Phenomenology · Physics 2017-08-23 Makoto C. Fujiwara

It is shown that the interpretation of the experimental results reported in the publication Storage of Light in Atomic Vapor" by D.F.Phillips et al., Phys. Rev.Lett. 86, 783 (2001) is incorrect. The experimental observation of this paper…

Quantum Physics · Physics 2007-05-23 E. B. Alexandrov , V. S. Zapasskii

It is pointed out that current conservation alone does not suffice to prove Hara's theorem as it was claimed recently. By explicit calculation we show that the additional implicit assumption made in such "proofs" is that of a sufficiently…

High Energy Physics - Phenomenology · Physics 2009-10-30 P. Zenczykowski

We investigate the importance of the pseudo-continuum bound-free opacity from hydrogen atoms in the atmospheres of cool white dwarfs. This source of absorption, when calculated by the occupation probability formalism applied in the modeling…

Astrophysics · Physics 2008-11-26 Piotr M. Kowalski

It is shown here that Suarez [Found. Phys. 38, 583 (2008)] wrongly presents the assumptions behind the Leggett's inequalities, and their modified form used by Groeblacher et al. [Nature 446, 871 (2007)] for an experimental falsification of…

Quantum Physics · Physics 2009-11-13 Marek Zukowski

Catching fish with a fishing net is typically done either by dragging a fishing net through quiescent water or by placing a stationary basket trap into a stream. We transfer these general concepts to micron-sized self-motile particles…

Soft Condensed Matter · Physics 2013-08-23 A. Kaiser , K. Popowa , H. H. Wensink , H. Löwen

Apart from the suspected violation of the CPT invariance, we might expect if the measurements of antihydrogen atoms provide testing Weak Equivalence Principle (WEP) in the gravitational phenomena. We start with how its violation can be…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Yasunori Fujii

We derive a model for voltage-induced wetting, so-called electrowetting, from the principle of virtual displacement. Our model includes the possibility that charge is trapped in or on the wetted surface. Experimentally, we show reversible…

Materials Science · Physics 2007-05-23 H. J. J. Verheijen , M. W. J. Prins

There is a need for numerical models capable of predicting local accumulation of hydrogen near stress concentrators and crack tips to prevent and mitigate hydrogen assisted fracture in steels. The experimental characterisation of trapping…

Applied Physics · Physics 2020-10-27 A. Díaz , A. Zafra , E. Martínez-Pañeda , J. M. Alegre , J. Belzunce , I. I. Cuesta

Recently, the authors of Ref.1[arXiv:1004.3100] claimed that they have proven the traditional adiabatic condition is a necessary condition. Here, it is claimed that there are some mistakes and an artificial over-strong constraint in [1],…

Quantum Physics · Physics 2011-04-05 Meisheng Zhao , Jianda Wu

I argue that the proposition that primordial perturbations were produced by inflation is most definitely falsifyable. Far from ``predicting anything you want'', the Gaussianity and passivity of inflationary perturbations strongly constrain…

Astrophysics · Physics 2008-02-03 Andreas Albrecht

We revisit the global 21cm signal calculation incorporating a possible radio background at early times, and find that the global 21cm signal shows a much stronger absorption feature, which could enhance detection prospects for future 21 cm…

Cosmology and Nongalactic Astrophysics · Physics 2018-05-23 Chang Feng , Gilbert Holder

It will be shown that the comment [1] contains numerous errors, misconceptions, inaccuracies, false assumptions, misunderstandings and unjustified claims. The analysis of the comment is built on a false assumption that the terminal current…

Classical Physics · Physics 2016-11-03 Wen Geyi

In this paper, we give a simple counter example to the famous Hodge conjecture.

General Mathematics · Mathematics 2013-01-23 Renyi Ma

I give an overview of experimental and theoretical results for antiproton and antihydrogen scattering with atoms and molecules (in particular H, He). At low energies ($\lesssim1$~keV) there are practically no experimental data available.…

Atomic Physics · Physics 2018-08-31 Svante Jonsell

In this paper, we use a statistical thermodynamic approach to quantify the efficiency with which clathrates on the surface of Titan trap noble gases. We consider different values of the Ar, Kr, Xe, CH4, C2H6 and N2 abundances in the gas…

Astrophysics · Physics 2009-11-13 Caroline Thomas , Sylvain Picaud , Olivier Mousis , Vincent Ballenegger

We upgrade [1] to a complete proof of the conjecture NP = PSPACE. [1]: L. Gordeev, E. H. Haeusler, Proof Compression and NP Versus PSPACE, Studia Logica (107) (1): 55-83 (2019)

Logic in Computer Science · Computer Science 2022-01-11 Lev Gordeev

We show that the arguments against our paper raised by B. Davids et al. are either irrelevant or incorrect.

Astrophysics · Physics 2007-11-30 V. B. Belyaev , M. Tater , E. Truhlik
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