216 citations · 569 across the 4 of their papers we have counts for
4 papers
Theory of defect production in nonlinear quench across a quantum critical point
Shreyoshi Mondal, K. Sengupta, Diptiman Sen
We study defect production in a quantum system subjected to a nonlinear power law quench which takes it either through a quantum critical or multicritical point or along a quantum…
Defect production in non-linear quench across a quantum critical point
Diptiman Sen, K. Sengupta, Shreyoshi Mondal
We show that the defect density , for a slow non-linear power-law quench with a rate and an exponent , which takes the system through a critical point characterize…
Quench dynamics and defect production in the Kitaev and extended Kitaev models
Shreyoshi Mondal, Diptiman Sen, K. Sengupta
We study quench dynamics and defect production in the Kitaev and the extended Kitaev models. For the Kitaev model in one dimension, we show that in the limit of slow quench rate, t…
Exact results for quench dynamics and defect production in a two-dimensional model
K. Sengupta, Diptiman Sen, Shreyoshi Mondal
We show that for a d-dimensional model in which a quench with a rate τ^{-1} takes the system across a d-m dimensional critical surface, the defect density scales as n \sim 1/τ^{mν/…