186 citations · 896 across the 35 of their papers we have counts for
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cond-mat.str-el2012★ 11 cited
Quantum Ising dynamics and Majorana-like edge modes in the Rabi lattice model
Brijesh Kumar, Somenath Jalal
The atomic dipoles in the Rabi lattice model exhibit quantum Ising dynamics in the limit of strong atom-photon interaction. It governs the para- to ferro-electric phase transition…
cond-mat.str-el2012★ 4 cited
DMRG studies on linear-exchange quantum spin models in one dimension
Bimla Danu, Brijesh Kumar, Ramesh V. Pai
We study a class of spin-1/2 quantum antiferromagnetic chains using DMRG technique. The exchange interaction in these models decreases linearly as a function of the separation betw…
cond-mat.str-el2012★ 17 cited
Exact spin-orbital separation in a solvable model in one dimension
Brijesh Kumar
A one-dimensional model of coupled spin-1/2 spins and pseudospin-1/2 orbitals with nearest-neighbor interaction is rigorously shown to exhibit spin-orbital separation by means of a…