495 citations · 644 across the 2 of their papers we have counts for
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quant-ph2004
Entanglement Observables and Witnesses for Interacting Quantum Spin Systems
L. -A. Wu, S. Bandyopadhyay, M. S. Sarandy +1
We discuss the detection of entanglement in interacting quantum spin systems. First, thermodynamic Hamiltonian-based witnesses are computed for a general class of one-dimensional s…
quant-ph2004★ 495 cited
Quantum Phase Transitions and Bipartite Entanglement
Lian-Ao Wu, Marcelo S. Sarandy, Daniel A. Lidar
We develop a general theory of the relation between quantum phase transitions (QPTs) characterized by nonanalyticities in the energy and bipartite entanglement. We derive a functio…