137 citations · 147 across the 3 of their papers we have counts for
6 papers · 1 filter
Microscopic quantum generalization of classical Liénard oscillators
Srijan Bhattacharyya, Arnab Ghosh, Deb Shankar Ray
Based on a system-reservoir model and an appropriate choice of nonlinear coupling, we have explored the microscopic quantum generalization of classical Liénard systems. Making use…
Spin-bath polarization via disentanglement
D. D. Bhaktavatsala Rao, Arnab Ghosh, David Gelbwaser-Klimovsky +2
Spin bath polarization is the key to enhancing the sensitivity of quantum sensing and information processing. Significant effort has been invested in identifying the consequences o…
Are quantum thermodynamic machines better than their classical counterparts?
Arnab Ghosh, Victor Mukherjee, Wolfgang Niedenzu +1
Interesting effects arise in cyclic machines where both heat and ergotropy transfer take place between the energising bath and the system (the working fluid). Such effects correspo…
Thermodynamic principles and implementations of quantum machines
Arnab Ghosh, Wolfgang Niedenzu, Victor Mukherjee +1
The efficiency of cyclic heat engines is limited by the Carnot bound. This bound follows from the second law of thermodynamics and is attained by engines that operate between two t…
Fluctuation corrections on thermodynamic functions: Finite size effect
Sudarson Sekhar Sinha, Arnab Ghosh, Deb Shankar Ray
The explicit thermodynamic functions, in particular, the specific heat of a spin system interacting with a spin bath which exerts finite dissipation on the system are determined. W…
Coherent state of a weakly interacting ultracold Fermi gas
Arnab Ghosh, Sudarson Sekhar Sinha, Deb Shankar Ray
We examine the weakly interacting atoms in an ultracold Fermi gas leading to a state of macroscopic coherence, from a theoretical perspective. It has been shown that this state can…