6 papers
Fluctuation Spectra and Response Function of Coupled Atomic and Molecular BECs
Avinaba Mukherjee, Raka Dasgupta
We investigate out-of-equilibrium properties of atomic molecular Bose Einstein condensates coupled through a Feshbach resonance, with the Feshbach coupling and detuning subject to…
Dynamical Crossover in LandauZener Tunneling in Dissipative Rydberg Lattices
Suvechha Indu, Raka Dasgupta
In this work, we investigate the excitation dynamics of a Rabi-coupled dissipative Rydberg lattice with a time-dependent detuning. The system is analyzed using (i) a Lindblad maste…
Roles of Polarization and Detuning in the Noise-induced Relaxation Dynamics of Atomic-Molecular Bose Condensates
Avinaba Mukherjee, Raka Dasgupta
We study the relaxation process of a resonant Bose gas under the influence of Gaussian white noise. We characterize the system dynamics in terms of the polarization or imbalance be…
Different Phases in a Dissipative Rydberg Lattice : Roles of Occupancy and On-site Interaction
Suvechha Indu, Aniruddha Biswas, Raka Dasgupta
We study a two-level dissipative non-equilibrium bosonic Rydberg system in an optical lattice, where multiple atoms can occupy a single site. The system is treated using two differ…
Relaxation Dynamics in Atomic-Molecular Bose Condensates in the Presence of Gaussian Noise
A. Mukherjee, R. Dasgupta
We investigate the dynamics of atomic and molecular bosons weakly coupled via Feshbach detuning in the presence of Gaussian white noise. The time-evolution of the population imbala…
Finite temperature phase diagram of the extended Bose-Hubbard model in the presence of disorder
Madhumita Kabiraj, Raka Dasgupta
We study the finite and non-zero temperature phase diagram of the Extended Bose-Hubbard Model for both pure and disordered systems. Such a system can be experimentally realized by…