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pro vyhledávání: '"Chakraborty, Anwesha"'
Here, we present an algebraic and kinematical analysis of non-commutative $\kappa$-Minkowski spaces within Galilean (non-relativistic) and Carrollian (ultra-relativistic) regimes. Utilizing the theory of Wigner-In\"{o}nu contractions, we begin with a
Externí odkaz:
http://arxiv.org/abs/2401.05769
Autor:
Chakraborty, Anwesha
Publikováno v:
Proceedings of Science, Vol 436, 2023
Any effort to localise an event in the vicinity of the Planck length scale, only where the quantum gravitational effects are predicted to be observed, will invariably result in gravitational collapse. One must postulate noncommutative (NC) algebra be
Externí odkaz:
http://arxiv.org/abs/2306.08467
Autor:
Nandi, Partha, Chakraborty, Anwesha, Pal, Sayan Kumar, Chakraborty, Biswajit, Scholtz, Frederik G
Publikováno v:
JHEP 07 (2023) 142
The quest for a quantum gravity phenomenology has inspired a quantum notion of space-time, which motivates us to study the fate of the relativistic symmetries of a particular model of quantum space-time, as well as its intimate connection with the pl
Externí odkaz:
http://arxiv.org/abs/2303.02728
This contributory article begins with our fond and sincere reminiscences about our beloved Prof. A.P. Balachandran. In the main part, we discuss our recent formulation of quantum mechanics on (1+1)D noncommutative space-time using Hilbert-Schmidt ope
Externí odkaz:
http://arxiv.org/abs/2212.06548
Autor:
Banerjee, Rabin, Chakraborty, Anwesha
Publikováno v:
Nucl. Phys. B, Volume 996, 2023
Using a generalised Noether prescription we are able to extract all the currents and their conservation laws in space dependent shift symmetric theories. Various identities among the currents in the matter sector are found that form the basis for rev
Externí odkaz:
http://arxiv.org/abs/2210.12349
Publikováno v:
J. Math. Phys. 63, 023504 (2022)
Here we have illustrated the construction of a real structure on fuzzy sphere $S^2_*$ in its spin-1/2 representation. Considering the SU(2) covariant Dirac and chirality operator on $S^2_*$ given by Watamura et. al. in [6], we have shown that the rea
Externí odkaz:
http://arxiv.org/abs/2111.03012
Publikováno v:
Nucl. Phys. B, Volume 975, February 2022, 115691
We show the emergence of Berry phase in a forced harmonic oscillator system placed in the quantum space-time of Moyal type, where the time 't' is also an operator. An effective commutative description of the system gives a time dependent generalised
Externí odkaz:
http://arxiv.org/abs/2110.04730
Autor:
Banerjee, Rabin, Chakraborty, Anwesha
Publikováno v:
In Nuclear Physics, Section B November 2023 996
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Publikováno v:
Int. J. Geom. Meth. Mod. Phys. 17 (2020) 06, 2050089
We present here a completely operatorial approach, using Hilbert-Schmidt operators, to compute spectral distances between time-like separated "events ", associated with the pure states of the algebra describing the Lorentzian Moyal plane, using the a
Externí odkaz:
http://arxiv.org/abs/1910.00010