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12 papers · 1 filter
Sunburst quantum Ising battery
Akash Mitra, Shashi C. L. Srivastava
We study the energy transfer process in the recently proposed sunburst quantum Ising model, which consists of two interacting integrable systems: a transverse Ising chain with a ve…
Sunburst quantum Ising model under interaction quench: entanglement and role of initial state coherence
Akash Mitra, Shashi C. L. Srivastava
We study the non-equilibrium dynamics of an isolated bipartite quantum system, the sunburst quantum Ising model, under interaction quench. The pre-quench limit of this model is two…
Unbounded quantum backflow in two dimensions
Maximilien Barbier, Arseni Goussev, Shashi C. L. Srivastava
Quantum backflow refers to the counterintuitive fact that the probability can flow in the direction opposite to the momentum of a quantum particle. This phenomenon has been seen to…
Comment on "Backflow in relativistic wave equations"
Maximilien Barbier, Christopher J. Fewster, Arseni Goussev +2
Comment on "Backflow in relativistic wave equations" by I. Bialynicki-Birula, Z. Bialynicka-Birula, and S. Augustynowicz [Journal of Physics A: Mathematical and Theoretical, volume…
Quantum coherence controls the nature of equilibration in coupled chaotic systems
Jethin J. Pulikkottil, Arul Lakshminarayan, Shashi C. L. Srivastava +3
A bipartite system whose subsystems are fully quantum chaotic and coupled by a perturbative interaction with a tunable strength is a paradigmatic model for investigating how isolat…
Entanglement production by interaction quenches of quantum chaotic subsystems
Jethin J. Pulikkottil, Arul Lakshminarayan, Shashi C. L. Srivastava +2
The entanglement production in bipartite quantum systems is studied for initially unentangled product eigenstates of the subsystems, which are assumed to be quantum chaotic. Based…