3 papers
cond-mat.stat-mech2020
Growth of mutual information in a quenched one-dimensional open quantum many body system
Somnath Maity, Souvik Bandyopadhyay, Sourav Bhattacharjee +1
We study the temporal evolution of the mutual information (MI) in a one-dimensional Kitaev chain, coupled to a fermionic Markovian bath, subsequent to a global quench of the chemic…
cond-mat.stat-mech2019
Dynamical generation of Majorana edge correlations in a ramped Kitaev chain coupled to nonthermal dissipative channels
Souvik Bandyopadhyay, Sourav Bhattacharjee, Amit Dutta
We quantitatively study the out-of-equilibrium edge-Majorana correlation in a linearly ramped one-dimensional Kitaev chain of finite length in a dissipative environment. The chemic…
quant-ph2019
Quantum magnetometry using two-stroke thermal machines
Sourav Bhattacharjee, Utso Bhattacharya, Wolfgang Niedenzu +2
The precise estimation of small parameters is a challenging problem in quantum metrology. Here, we introduce a protocol for accurately measuring weak magnetic fields using a two-le…