125 citations · 140 across the 7 of their papers we have counts for
3 papers · 1 filter
One-dimensional quantum many body systems with long-range interactions
Somnath Maity, Utso Bhattacharya, Amit Dutta
The presence of algebraically decaying long-range interactions may alter the critical as well as topological behaviour of a quantum many-body systems. However, when the interaction…
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…
Temporal variation in the winding number due to dynamical symmetry breaking and associated transport in a driven SSH chain
Souvik Bandyopadhyay, Utso Bhattacharya, Amit Dutta
Considering a BDI symmetric one-dimensional SSH model, we explore the fate of the bulk topological invariant, namely, the winding number under a generic time dependent perturbation…