Zobrazeno 1 - 10
of 660
pro vyhledávání: '"TIWARI, S. C."'
Autor:
Tiwari, S C
The notion of diffeomorphism invariance and general covariance are conceptually delicate issues for the field equations and the actions. A thorough study on the original Einstein field equation and its two modifications by Einstein is presented. It i
Externí odkaz:
http://arxiv.org/abs/2408.05229
Autor:
Tiwari, S C
Vast literature on the experiments and mathematical formulations on the geometric phases signifies the importance of this subject. Physical mechanism for the origin of the geometric phases in optics was suggested in 1992 by the author in terms of the
Externí odkaz:
http://arxiv.org/abs/2404.05747
Autor:
Tiwari, S. C.
In this comment on arXiv:2308.07360 it is pointed out that though the authors raise an important question on the prevailing presentations of the unimodular gravity their own presentation is incomplete as well as confusing equating assumptions to misc
Externí odkaz:
http://arxiv.org/abs/2309.07931
Autor:
Tiwari, S C
The proposition that photon is a topological object (J. Math. Phys. 49, 032303, 2008) is given rigorous foundation based on pure vector field theory independent of the electromagnetic fields. Holomorphy of 4-dimensional space-time and the nature of t
Externí odkaz:
http://arxiv.org/abs/2307.11095
Autor:
Tiwari, S C
Publikováno v:
Modern Physics Letters A 2023
Role of gauge symmetry in the proton spin problem has intricate and unresolved aspects. One of the interesting approaches to gain physical insights is to explore tha Landau problem in this context. A detailed study using the group theoretic method to
Externí odkaz:
http://arxiv.org/abs/2306.01017
Autor:
Tiwari, S. C.
Publikováno v:
Physica Scripta, 98 065303, 2023
A thorough study and analysis on the conceptual foundations of unimodular gravity shows that this theory is essentially general relativity disguised as unimodular relativity in the literature. The main reason for this dilemma is accepting the Einstei
Externí odkaz:
http://arxiv.org/abs/2212.13137
Autor:
Tiwari, S C
A systematic study carried out on the infinite degeneracy and the constants of motion in the Landau problem establishes the central extension of the Euclidean group in two dimension as a dynamical symmetry group, and Sp(2,R) as spectrum generating gr
Externí odkaz:
http://arxiv.org/abs/2209.11333
Autor:
PANDEY, A.1, TIWARI, S. C.1 ankitforestry21@gmail.com
Publikováno v:
Indian Journal of Pharmaceutical Sciences. Jul/Aug2024, Vol. 86 Issue 4, p1176-1186. 11p.
Autor:
Tiwari, S. C.
In this comment on the article by Alonso-Serrano and Liska (arXiv: 2008.04805) a formal resemblance between their expression of curvature scale and the scale dependent on the matter energy-momentum ambiguity of Finkelstein et al (JMP, 2001) is pointe
Externí odkaz:
http://arxiv.org/abs/2106.04397
Autor:
Tiwari, S C
Publikováno v:
Modern Physics Letters A Vol. 33, No. 31, 1850180 (2018)
The electron magnetic moment decomposition calculated in QED is proposed to have origin in a multi-vortex internal structure of the electron. This proposition is founded on two important contributions of the present work. First, a critical review on
Externí odkaz:
http://arxiv.org/abs/2009.07077