3 papers
quant-ph2024
Study of entanglement and phase transitions in the coupled top systems with standard and nonstandard symmetries
Rashmi Jangid Sharma, Jayendra N. Bandyopadhyay
We study classical and quantum versions of a coupled top system in the absence and the presence of nonlinear torsion in the individual top. The model without the torsion and couple…
cond-mat.stat-mech2019
Survival of current in a periodically driven hard-core bosonic system
Rashmi J. Sharma, Jayendra N. Bandyopadhyay
We study the survival of the current induced initially by applying a twist at the boundary of a chain of hard-core bosons (HCBs), subject to a periodic double -function kicks in…
quant-ph2015
Self-similar spectrum in effective time independent Hamiltonians for kicked systems
Rashmi Jangid Sharma, Jayendra N. Bandyopadhyay, Tapomoy Guha Sarkar
We study multifractal properties in the spectrum of effective time-independent Hamiltonians obtained using a perturbative method for a class of delta-kicked systems. The evolution…