59 citations · 190 across the 14 of their papers we have counts for
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quant-ph2008★ 25 cited
Spin-1/2 Heisenberg ladder: variation of entanglement and fidelity measures close to quantum critical points
Amit Tribedi, Indrani Bose
We consider a two-chain, spin-1/2 antiferromagnetic Heisenberg spin ladder in an external magnetic field H. The spin ladder is known to undergo second order quantum phase transitio…
quant-ph2008★ 15 cited
Entanglement and fidelity signatures of quantum phase transitions in spin liquid models
Amit Tribedi, Indrani Bose
We consider a spin ladder model which is known to have matrix product states as exact ground states with spin liquid characteristics. The model has two critical-point transitions a…
quant-ph2006★ 20 cited
Entangled spin clusters: some special features
Amit Tribedi, Indrani Bose
In this paper, we study three specific aspects of entanglement in small spin clusters. We first study the effect of inhomogeneous exchange coupling strength on the entanglement pro…