200 citations · 583 across the 31 of their papers we have counts for
31 papers
Quantum correlations in a cluster spin model with three-spin interactions
Sadaf F, V. Subrahmanyam
An exactly solvable cluster spin model with three-spin interaction couplings J_x (for XZX spin components) and J_y (for YZY spin components) in the presence of a transverse magneti…
Transmission across non-Hermitian -symmetric quantum dots and ladders
Abhiram Soori, M. Sivakumar, V. Subrahmanyam
A non-Hermitian region connected to semi-infinite Hermitian lattices acts either as a source or as a sink and the probability current is not conserved in a scattering typically. Ev…
Loschmidt echo and Momentum Distribution in a Kitaev Spin Chain
Vimalesh Kumar Vimal, H. Wanare, V. Subrahmanyam
We investigate the Loschmidt echo in a one-dimensional spin chain having Kitaev-type interaction in constant and kicked magnetic fields. The Loschmidt echo for the initial states h…
Information scrambling and redistribution of quantum correlations through dynamical evolution in spin chains
Saikat Sur, V. Subrahmanyam
We investigate the propagation of local bipartite quantum correlations, along with the tripartite mutual information to characterize the information scrambling through dynamical ev…
Loschmidt echo of local dynamical processes in integrable and non integrable spin chains
Saikat Sur, V. Subrahmanyam
The Loschmidt echo is investigated to track the effect of the local QDP. It is also quite sensitive to whether the background dynamics is integrable or not. For the integrable case…
Quantum correlations and entanglement in a Kitaev-type spin chain
Vimalesh Kumar Vimal, V. Subrahmanyam
The entanglement and quantum correlation measures have been investigated for the ground state of a spin chain with a Kitaev-type exchange interactions on alternating bonds, along w…