3 papers
hep-th2026
(De)Coherence of a quantum system in an anti-de Sitter spacetime
Mandas Biswas, Anupam Mazumdar
In this paper, we study the coherence/decoherence of a quantum harmonic oscillator in anti-de Sitter (AdS) spacetime by quantising the graviton in a curved background with a nontri…
gr-qc2026
The No-Short Hair Theorem for Black Holes and Wormholes in Extra-Dimension
Mandas Biswas
The no-short hair theorem for static spherically symmetric black holes in general theory of relativity asserts that if a black hole has hair, that hair must extend beyond the lowes…
quant-ph2024
Quantum-Classical Correspondence in a Quartic Oscillator -- Corrections to Frequency and Bounds for Periodic Motion
Mandas Biswas, Deb Shankar Ray
We take a qualitative comparative look at quantum and classical quartic anharmonic oscillators. It has been shown that the behavior of the quantum anharmonic oscillator mimics that…