157 citations · 368 across the 8 of their papers we have counts for
9 papers · 1 filter
A random fiber bundle with many discontinuities in the threshold distribution
Uma Divakaran, Amit Dutta
We study the breakdown of a random fiber bundle model (RFBM) with -discontinuities in the threshold distribution using the global load sharing scheme. In other words, diff…
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 $…
The effect of the three-spin interaction and the next-nearest neighbor interaction on the quenching dynamics of a transverse Ising model
Uma Divakaran, Amit Dutta
We study the zero temperature quenching dynamics of various extensions of the transverse Ising model (TIM) when the transverse field is linearly quenched from to $+\infty…
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…
Fibers on a graph with local load sharing
Uma Divakaran, Amit Dutta
We study a random fiber bundle model with tips of the fibers placed on a graph having co-ordination number 3. These fibers follow local load sharing with uniformly distributed thre…