123 citations · 2k across the 86 of their papers we have counts for
14 papers · 1 filter
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…
Environment assisted superballistic scaling of conductance
Madhumita Saha, Bijay Kumar Agarwalla, Manas Kulkarni +1
We find that, in the presence of weak incoherent effects from surrounding environments, the zero temperature conductance of nearest neighbour tight-binding chains exhibits a counte…
Photon statistics of a double quantum dot micromaser: Quantum treatment
Bijay Kumar Agarwalla, Manas Kulkarni, Dvira Segal
A semiconductor single-atom micromaser consists of a microwave cavity coupled to a gain medium, a double quantum dot driven out of equilibrium by a bias voltage. The masing thresho…
Quantum-dot circuit-QED thermoelectric diodes and transistors
Jincheng Lu, Rongqian Wang, Jie Ren +2
Recent breakthroughs in quantum-dot circuit-quantum-electrodynamics (circuit-QED) systems are important both from a fundamental perspective and from the point of view of quantum ph…
Cooling by heating in nonequilibrium nanosystems
R. Härtle, C. Schinabeck, M. Kulkarni +3
We demonstrate the possiblity to cool nanoelectronic systems in nonequilibrium situations by increasing the temperature of the environment. Such cooling by heating is possible for…
Anomalous transport in the Aubry-André-Harper model in isolated and open systems
Archak Purkayastha, Sambuddha Sanyal, Abhishek Dhar +1
We study the high temperature transport behavior of the Aubry-André-Harper (AAH) model, both in the isolated thermodynamic limit and in the open system. At the critical point of th…