6 papers · 1 filter
Can Spontaneous Time-Translation Symmetry Breaking Be Quantized Without Explicit Branches?
Partha Nandi
Can classically branched dynamics associated with spontaneous time-translation-symmetry breaking be quantized without explicitly retaining the branches of the Hamiltonian? We inves…
Spin-Induced Fractal Time-Crystal-Like Dynamics and Non-Markovian Memory in the Bateman Dual Oscillator
Partha Nandi, Giuseppe Vitiello
Can a closed quantum system generate time-crystal-like nonequilibrium behavior, self-similar scaling structures, and non-Markovian memory without external driving or coupling to a…
Quantum Geometric Phases as a New Window on Gravitational Waves
Partha Nandi, Frederik G. Scholtz
We investigate how low-frequency gravitational waves (LFGWs), originating from distant astrophysical or cosmological sources, can induce purely quantum geometric phases in mesoscop…
Can Non-Relativistic Strings Propagate Without Geometric Baggage?
Partha Nandi, Sk. Moinuddin, Abdus Sattar
We present a minimal and dynamically consistent formulation of non-relativistic bosonic string theory in a Newton-Cartan (NC) background. Starting from a reparametrization-invarian…
Decoherence from quantum spacetime noise: An open-systems framework with application to neutrino oscillations
Partha Nandi, Tiasha Bhattacharyya, A. S. Majumdar +2
We present a general open-quantum-systems framework to model decoherence induced by stochastic Planck-scale fluctuations of spacetime, focusing on the kappa-Minkowski noncommutativ…
Magnetically Induced Schrödinger Cat States: The Shadow of a Quantum Space
Partha Nandi, Nandita Debnath, Subhajit Kala +1
Schrödinger cat states, which are superpositions of macroscopically distinct states, are potentially critical resources for upcoming quantum information technologies. In this paper…