Zobrazeno 1 - 10
of 156
pro vyhledávání: '"Dey, Sanjib"'
Publikováno v:
Eur. Phys. J. C (2023) 83: 851
In this paper, we first construct thermofield double states for bosonic string theory in the light-cone gauge. We then obtain a coherent-thermal string state and a thermal-coherent string state. We use the covariance matrix approach to calculate the
Externí odkaz:
http://arxiv.org/abs/2202.08663
Autor:
Ankur, Dey, Sanjib
Publikováno v:
Physics Letters B 818, 136391 (2021)
We have studied the charged BTZ black holes in noncommutative spaces arising from two independent approaches. First, by using the Seiberg-Witten map followed by a dynamic choice of gauge in the Chern-Simons gauge theory. Second, by inducing the fuzzi
Externí odkaz:
http://arxiv.org/abs/2105.11130
Autor:
Dey, Sanjib
Publikováno v:
Journal of Physics: Conference Series 2038 (2021) 012008
Quantum resource theory is perhaps the most revolutionary framework that quantum physics has ever experienced. It plays vigorous roles in unifying the quantification methods of a requisite quantum effect as wells as in identifying protocols that opti
Externí odkaz:
http://arxiv.org/abs/2103.12314
Publikováno v:
Class. Quantum Grav. 38 (2021) 105001
We study the non-perturbative quantum corrections to a Born-Infeld black hole in a spherical cavity. These quantum corrections produce a non-trivial short distances modification to the relation between the entropy and area of this black hole. The non
Externí odkaz:
http://arxiv.org/abs/2012.14428
Publikováno v:
Scientific Reports Volume 11, Article number: 10262 (2021)
Discrete-time quantum walks are known to exhibit exotic topological states and phases. Physical realization of quantum walks in a noisy environment may destroy these phases. We investigate the behavior of topological states in quantum walks in the pr
Externí odkaz:
http://arxiv.org/abs/2007.15500
Autor:
Dey, Sanjib, Nair, Sarika S.
Publikováno v:
Journal of Physics A: Math. Theor. 53 (2020) 385305
We construct a generalized version of the photon-subtracted squeezed vacuum states (PSSVS), which can be utilized to construct the same for nonlinear, deformed and any usual quantum mechanical models beyond the harmonic oscillator. We apply our gener
Externí odkaz:
http://arxiv.org/abs/2006.00869
Publikováno v:
Physics Letters A 383 (2019) 125931
We have studied the effect of a non-Hermitian Bosonic bath on the dynamics of a two-level spin system. The non-Hermitian Hamiltonian of the bath is chosen such that it converges to the harmonic oscillator Hamiltonian when the non-Hermiticity is switc
Externí odkaz:
http://arxiv.org/abs/1907.11088
Publikováno v:
Class. Quantum Grav. 37 (2020) 135004
In this paper, we will analyze a finite temperature BIon, which is a finite temperature brane-anti-brane wormhole configuration. We will analyze the quantum fluctuations to this BIon solution using the Euclidean quantum gravity. It will be observed t
Externí odkaz:
http://arxiv.org/abs/1905.03624
Publikováno v:
Physics Letters A 382 (2018) 3369
Squeezed states are one of the most useful quantum optical models having various applications in different areas, especially in quantum information processing. Generalized squeezed states are even more interesting since, sometimes, they provide addit
Externí odkaz:
http://arxiv.org/abs/1810.02947
Publikováno v:
Eur. Phys. J. C (2018) 78:685
We analyze certain aspects of BTZ black holes in massive theory of gravity. The black hole solution is obtained by using the Vainshtein and dRGT mechanism, which is asymptotically AdS with an electric charge. We study the Hawking radiation using the
Externí odkaz:
http://arxiv.org/abs/1809.00868