216 citations · 1.4k across the 20 of their papers we have counts for
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Defect production due to quenching through a multicritical point
Uma Divakaran, Victor Mukherjee, Amit Dutta +1
We study the generation of defects when a quantum spin system is quenched through a multicritical point by changing a parameter of the Hamiltonian as , where is the charac…
Quenching along a gapless line: A different exponent for defect density
Uma Divakaran, Amit Dutta, Diptiman Sen
We use a new quenching scheme to study the dynamics of a one-dimensional anisotropic spin-1/2 chain in the presence of a transverse field which alternates between the values $…
Defect generation in a spin-1/2 transverse XY chain under repeated quenching of the transverse field
Victor Mukherjee, Amit Dutta, Diptiman Sen
We study the quenching dynamics of a one-dimensional spin-1/2 model in a transverse field when the transverse field is quenched repeatedly between and $+\i…
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/…
Quenching Dynamics of a quantum XY spin-1/2 chain in presence of a transverse field
Victor Mukherjee, Uma Divakaran, Amit Dutta +1
We study the quantum dynamics of a one-dimensional spin-1/2 anisotropic XY model in a transverse field when the transverse field or the anisotropic interaction is quenched at a slo…