30 citations · 49 across the 7 of their papers we have counts for
7 papers
Thermodynamics of an Open Two-Level Symmetric Quantum System
Baibhab Bose, Devvrat Tiwari, Subhashish Banerjee
For a subclass of a general symmetric Hamiltonian obeying anti-commutation relation with its conjugate, a Hermitian basis is found that spans the bi-orthonormal ener…
Interferometric and Bipartite OTOC for Non-Markovian Open Quantum Spin-Chains and Lipkin-Meshkov-Glick Model
Baibhab Bose, Devvrat Tiwari, Subhashish Banerjee
The information scrambling phenomena in an open quantum system modeled by Ising spin chains coupled to Lipkin-Meshkov-Glick (LMG) baths are observed via an interferometric method f…
Symmetric Two-Level Open Quantum Systems: Information Theoretic Facets
Baibhab Bose, Devvrat Tiwari, Subhashish Banerjee
The theory of a two-level -Hermitian Hamiltonian with symmetry is reviewed and extended to include open system dynamics. A first-principles derivation of the gene…
Quantum Chaos in Non-Markovian Open Quantum Systems: Interferometric OTOC, Loschmidt Echo and Commutator Operator Norm
Baibhab Bose, Devvrat Tiwari, Subhashish Banerjee
Out-of-time order correlators (OTOCs) are crucial tools for studying quantum chaos as they show distinct scrambling behavior for chaotic Hamiltonians. We calculate OTOC and analyze…
Bipartite OTOC in open quantum systems: information scrambling and irreversibility
Baibhab Bose, Devvrat Tiwari, Subhashish Banerjee
The field of information scrambling has seen significant growth over the last decade, where the out-of-time-ordered correlator (OTOC) has emerged as a prominent tool to probe it. I…
Strong coupling non-Markovian quantum thermodynamics of a finite-bath system
Devvrat Tiwari, Baibhab Bose, Subhashish Banerjee
The focus is on understanding the quantum thermodynamics of strongly coupled non-Markovian quantum systems. To this end, a non-trivial, non-Markovian model of a central spin surrou…
The Generalized OTOC from Supersymmetric Quantum Mechanics: Study of Random Fluctuations from Eigenstate Representation of Correlation Functions
Kaushik Y. Bhagat, Baibhab Bose, Sayantan Choudhury +7
The concept of out-of-time-ordered correlation (OTOC) function is treated as a very strong theoretical probe of quantum randomness, using which one can study both chaotic and non-c…