4 papers
Dependence of Krylov complexity on the initial operator and state
Sreeram PG, J. Bharathi Kannan, Ranjan Modak +1
Krylov complexity, a quantum complexity measure which uniquely characterizes the spread of a quantum state or an operator, has recently been studied in the context of quantum chaos…
Ergodic and mixing quantum channels: From two-qubit to many-body quantum systems
S. Aravinda, Shilpak Banerjee, Ranjan Modak
The development of classical ergodic theory has had a significant impact in the areas of mathematics, physics, and, in general, applied sciences. The quantum ergodic theory of Hami…
Quest for optimal quantum resetting: protocols for a particle on a chain
Pallabi Chatterjee, S. Aravinda, Ranjan Modak
In the classical context, it is well known that, sometimes, if the search does not find its target, it is better to start the process anew again, known as resetting. The quantum co…
Probing quantum phase transition via quantum speed limit
M Suman, S. Aravinda, Ranjan Modak
Quantum speed limit (QSL) is the lower bound on the time required for a state to evolve to a desired final state under a given Hamiltonian evolution. Three well-known QSLs exist Ma…