40 citations · 111 across the 35 of their papers we have counts for
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Dynamics of number entropy for free fermionic systems in presence of defects and stochastic processes
Atharva Naik, Bijay Kumar Agarwalla, Manas Kulkarni
We investigate the dynamics of number entropy in a chain of free fermions subjected to both defects and stochastic processes. For a special class of defects, namely conformal defec…
Quantum dynamics in lattices in presence of bulk dephasing and a localized source
Tamoghna Ray, Katha Ganguly, Dario Poletti +2
The aim of this work is to study the dynamics of quantum systems subjected to a localized fermionic source in the presence of bulk dephasing. We consider two classes of one-dimensi…
Understanding synchronization between quantum self-sustained oscillators through coherence generation
Mohit Kumar, Bijay Kumar Agarwalla
Understanding the origin of phase synchronization between quantum self-sustained oscillators has garnered significant interest in recent years. In this work, we study phase synchro…
Collective Dissipation of Oscillator Dipoles Strongly Coupled to 1-D Electromagnetic Reservoirs
Subhasish Guha, Ipsita Bar, Bijay Kumar Agarwalla +1
We study the collective dissipative dynamics of dipoles modeled as harmonic oscillators coupled to 1-D electromagnetic reservoirs. The bosonic nature of the dipole oscillators as w…
Arbitrary order transfer matrix exceptional points and van Hove singularities
Madhumita Saha, Bijay Kumar Agarwalla, Manas Kulkarni +1
In lattice models with quadratic finite-range Hermitian Hamiltonians, the inherently non-Hermitian transfer matrix (TM) governs the band dispersion. The van Hove singularities (VHS…
Filling an empty lattice by local injection of quantum particles
Akash Trivedi, Bijay Kumar Agarwalla, Abhishek Dhar +3
We study the quantum dynamics of filling an empty lattice of size , by connecting it locally with an equilibrium thermal bath that injects non-interacting bosons or fermions. We…