4 papers
Dynamical quantum phase transitions through the lens of mode dynamics
Akash Mitra, Shashi C. L. Srivastava
We study the mode dynamics of a generic quadratic fermionic Hamiltonian under a sudden quench protocol in momentum space. Modes with zero energy at any given time, , are referre…
Sunburst quantum Ising battery under periodic delta-kick charging
Ankita Mazumdar, Akash Mitra, Shashi C. L. Srivastava
Most quantum batteries studied so far with notable exception of Sachdev-Ye-Kitaev (SYK) batteries are based on integrable models, where superlinear scaling of charging power and he…
Bound energy, entanglement and identifying critical points in 1D long-range Kitaev model
Akash Mitra, Shashi C. L. Srivastava
We investigate the entanglement structure of a bipartite quantum system through the lens of quantum thermodynamics in the absence of conformal symmetry. Specifically, we consider t…
Quantum criticality and universality in stationary state of long-range Kitaev model
Akash Mitra, Sanku Paul, Shashi C. L. Srivastava
We investigate the signature of quantum criticality in the long-time stationary state of the long-range Kitaev chain by performing various quench protocols. In this model, the pair…