59 citations · 134 across the 5 of their papers we have counts for
6 papers
Behaviour of One-Site Entanglement and Reduced Fidelity in an Anisotropic Spin-2 chain
Victoria Sharmila Gomes, Amit Tribedi, Subhrajyoti Dey
Utilizing the matrix product formalism, we have studied the variation of entanglement and fidelity measures in the MP ground states of a generic anisotropic spin 2 chain with neare…
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…
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…
Quantum Critical Point and Entanglement in a Matrix Product Ground State
Amit Tribedi, Indrani Bose
In this paper, we study the entanglement properties of a spin-1 model the exact ground state of which is given by a Matrix Product state. The model exhibits a critical point transi…
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…
Thermal entanglement properties of small spin clusters
Indrani Bose, Amit Tribedi
Exchange interactions in spin systems can give rise to quantum entanglement in the ground and thermal states of the systems. In this paper, we consider a spin tetramer, with spins…