157 citations · 339 across the 4 of their papers we have counts for
6 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 $…
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…
Effect of discontinuity in threshold distribution on the critical behaviour of a random fiber bundle
Uma Divakaran, Amit Dutta
The critical behaviour of a Random Fiber Bundle Model with mixed uniform distribution of threshold strengths and global load sharing rule is studied with a special emphasis on the…
Critical behaviour of random fibers with mixed Weibull distribution
Uma Divakaran, Amit Dutta
A random fiber bundle model with a mixed Weibull distribution is studied under the Global Load Sharing (GLS) scheme. The mixed model consists of two sets of fibers. The threshold s…