260 citations · 1.8k across the 99 of their papers we have counts for
102 papers
Super-Extensive Charging Power in the Absence of Global Operations
Anupam, Sheryl Mathew, Sibasish Ghosh
Quantum batteries have emerged as a platform for investigating whether quantum effects can accelerate energy storage beyond classical limits. Although a variety of charging schemes…
Nonlinear refrigerator with a finite-sized cold heat bath
I. Iyyappan, Yuki Izumida, Sibasish Ghosh
We study the refrigerator working between a finite-sized cold heat bath and an infinite-sized hot heat bath (environment) in the nonlinear response regime. We assume that the initi…
Asymptotic TCL4 Generator for the Spin-Boson Model: Analytical Derivation and Benchmarking
Prem Kumar, K. P. Athulya, Sibasish Ghosh
The spin-boson model is a widely used model for understanding the properties of a two-level open quantum system. Accurately describing its dynamics often requires going beyond the…
Hamiltonian -Locality is the Key Resource for Powerful Quantum Battery Charging
Anupam Sarkar, Sibasish Ghosh
Storing and extracting energy using quantum degrees of freedom is a promising approach to leveraging quantum effects in energy science. Early experimental efforts have already demo…
Post-Markovian master equation à la microscopic collisional model
Tanmay Saha, Sahil, K. P. Athulya +1
We derive a completely positive post-Markovian master equation (PMME) from a microscopic Markovian collisional model framework, incorporating bath memory effects via a probabilisti…
Equivalence between the second order steady state for the spin-Boson model and its quantum mean force Gibbs state
Prem Kumar, K. P. Athulya, Sibasish Ghosh
When the coupling of a quantum system to its environment is non-negligible, its steady state is known to deviate from the textbook Gibbs state. The Bloch-Redfield quantum master eq…