Zobrazeno 1 - 10
of 396
pro vyhledávání: '"Paul, Tanmoy"'
We demonstrate a deep connection between cosmology in thermodynamic description of apparent horizon and information theory. In particular, we show how the Landauer principle gets satisfied during the entire cosmic evolution of the universe starting f
Externí odkaz:
http://arxiv.org/abs/2409.05009
We give a short review of the recent developments of entropic cosmology based on two thermodynamic laws of the apparent horizon, namely the first and the second laws of thermodynamics. The first law essentially provides the change of the entropy of t
Externí odkaz:
http://arxiv.org/abs/2409.01090
The hallmark of the 4-parameter generalized entropy is that it can represent various known entropies proposed so far for suitable limits of the parameters, and thus the 4-parameter generalized entropy can be applied on additive as well as on non-addi
Externí odkaz:
http://arxiv.org/abs/2407.05855
We examine the second law of thermodynamics in the context of horizon cosmology, in particular, whether the change of total entropy (i.e. the sum of the entropy for the apparent horizon and the entropy for the matter fields) proves to be positive wit
Externí odkaz:
http://arxiv.org/abs/2404.05312
We propose a novel modified gravity: unimodular generalization of the Born-Infeld-$f(R)$ gravity within the framework of cosmology. After formulating the action corresponding to the generalized Born-Infeld-$f(R)$ gravity, we present a reconstruction
Externí odkaz:
http://arxiv.org/abs/2402.08951
The duality between a higher curvature $f(R)$ gravity model and a scalar-tensor theory helps to bring out the role of the additional degree of freedom originating from the higher derivative terms in the gravity action. Such a degree of freedom which
Externí odkaz:
http://arxiv.org/abs/2401.01705
In spirit of the recently proposed four-parameter generalized entropy of apparent horizon, we investigate inflationary cosmology where the matter field inside of the horizon is dominated by a scalar field with a power law potential (i.e., the form of
Externí odkaz:
http://arxiv.org/abs/2312.13587
Autor:
Das, Syamantak, Paul, Tanmoy
In [{\em Generalized centers of finite sets in Banach spaces}, Acta Math. Univ. Comenian. (N.S.) {\bf 66}(1) (1997), 83--115], Vesel\'{y} developed the idea of generalized centers for finite sets in Banach spaces. In this work, we explore the concept
Externí odkaz:
http://arxiv.org/abs/2311.15818
Generalized entropy, that has been recently proposed, puts all the known and apparently different entropies like The Tsallis, the R\'{e}nyi, the Barrow, the Kaniadakis, the Sharma-Mittal and the loop quantum gravity entropy within a single umbrella.
Externí odkaz:
http://arxiv.org/abs/2311.03848
Publikováno v:
SCIENCE CHINA Physics, Mechanics & Astronomy, February 2024 Vol. 67 No. 2: 220413
In this paper, we construct a bounce inflation cosmological scenario in the framework of the modified symmetric teleparallel gravity, namely f(Q) theory, and investigate the tensor perturbations therein. As is well-known, the tensor perturbations gen
Externí odkaz:
http://arxiv.org/abs/2308.00647