Zobrazeno 1 - 10
of 181
pro vyhledávání: '"Gupta, Kumar S."'
Publikováno v:
Phys.Lett.B 854 (2024) 138716
A quest for phenomenological footprints of quantum gravity is among the central scientific tasks in the rising era of gravitational wave astronomy. We study gravitational wave dynamics within the noncommutative geometry framework, based on a Drinfeld
Externí odkaz:
http://arxiv.org/abs/2310.06018
Publikováno v:
JHEP 02 (2023) 060
We study the noncommutative corrections to the entropy of the Reissner-Nordstr\"{o}m black hole using a $\kappa$-deformed scalar probe within the brick-wall framework. The noncommutativity is encoded in an Abelian Drinfeld twist constructed from the
Externí odkaz:
http://arxiv.org/abs/2209.07168
Publikováno v:
J. High Energ. Phys. (2019) 2019: 170
We show that a noncommutative massless scalar probe can dress a naked singularity in $AdS_3$ spacetime, consistent with the weak cosmic censorship. The dressing occurs at high energies, which is typical at the Planck scale. Using a noncommutative dua
Externí odkaz:
http://arxiv.org/abs/1908.07402
Publikováno v:
Phys. Rev. E 100, 012215 (2019)
The quantum dynamics of isolated systems under quench condition exhibits a variety of interesting features depending on the integrable/chaotic nature of system. We study the exact dynamics of trivially integrable system of harmonic chains under a mul
Externí odkaz:
http://arxiv.org/abs/1905.06743
Akademický článek
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Publikováno v:
EPL, 120 (2017) 50005
We present an exact and fully analytical treatment of the entanglement dynamics for an isolated system of $N$ coupled oscillators following a sudden quench of the system parameters. The system is analyzed using the solutions of the time dependent Sch
Externí odkaz:
http://arxiv.org/abs/1709.02202
We analyze the effects of noncommutativity in conformal quantum mechanics (CQM) using the $\kappa$-deformed space-time as a prototype. Upto the first order in the deformation parameter, the symmetry structure of the CQM algebra is preserved but the c
Externí odkaz:
http://arxiv.org/abs/1704.03666
Publikováno v:
Phys. Rev. D 96, 105008 (2017)
We show that the realizations of noncommutative coordinates that are linear in the Lorentz generators form a closed Lie algebra under certain conditions. The star product and the coproduct for the momentum generators are obtained for these Lie algebr
Externí odkaz:
http://arxiv.org/abs/1703.09511
Autor:
Sen, Siddhartha, Gupta, Kumar S.
Recently unusual properties of water in single-walled carbon nanotubes (CNT) with diameters ranging from 1.05 nm to 1.52 nm were observed. It was found that water in the CNT remains in an ice-like phase even when the temperature ranges between 105 -
Externí odkaz:
http://arxiv.org/abs/1703.07509
Publikováno v:
Phys. Rev. E 97, 022133 (2018)
We show that the $N$-particle Sutherland model with inverse-square and harmonic interactions exhibits orthogonality catastrophe. For a fixed value of the harmonic coupling, the overlap of the $N$-body ground state wave functions with two different va
Externí odkaz:
http://arxiv.org/abs/1703.05363