40 citations · 111 across the 35 of their papers we have counts for
6 papers · 1 filter
Impact of dephasing on non-equilibrium steady-state transport in fermionic chains with long-range hopping
Subhajit Sarkar, Bijay Kumar Agarwalla, Devendra Singh Bhakuni
Quantum transport in a non-equilibrium setting plays a fundamental role in understanding the properties of systems ranging from quantum devices to biological systems. Dephasing --…
Study of non-equilibrium Green's functions beyond Born approximation in open quantum systems
Katha Ganguly, Bijay Kumar Agarwalla
We provide a systematic approach to compute different kinds of non-equilibrium Green's functions for open quantum systems which are essentially two-point correlation functions in t…
Full statistics of non-equilibrium heat and work for many-body quantum Otto engines and universal bounds: A non-equilibrium Green's function approach
Sandipan Mohanta, Bijay Kumar Agarwalla
We consider a generic four-stroke quantum Otto engine consisting of two unitary and two thermalization strokes with an arbitrary many-body working medium. Using the Schwinger-Keldy…
Modified quantum regression theorem and consistency with Kubo-Martin-Schwinger condition
Sakil Khan, Bijay Kumar Agarwalla, Sachin Jain
We show that the long-time limit of the two-point correlation function obtained via the standard quantum regression theorem, a standard tool to compute correlation functions in ope…
Exceptional hypersurfaces of transfer matrices of finite-range lattice models and their consequences on quantum transport properties
Madhumita Saha, Manas Kulkarni, Bijay Kumar Agarwalla
We investigate the emergence and corresponding nature of exceptional points located on exceptional hyper-surfaces of non-hermitian transfer matrices for finite-range one-dimensiona…
Quantum coherent control of nonlinear thermoelectric transport in a triple-dot Aharonov-Bohm heat engine
Jayasmita Behera, Salil Bedkihal, Bijay Kumar Agarwalla +1
We investigate the role of quantum coherence and higher harmonics resulting from multiple-path interference in nonlinear thermoelectricity in a two-terminal triangular triple-dot A…