315 citations · 3.1k across the 59 of their papers we have counts for
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quant-ph2002★ 154 cited
Generalizations of entanglement based on coherent states and convex sets
H. Barnum, E. Knill, G. Ortiz +1
Unentangled pure states on a bipartite system are exactly the coherent states with respect to the group of local transformations. What aspects of the study of entanglement are appl…
cond-mat.str-el2002★ 9 cited
Hierarchical Mean-Field Theories in Quantum Statistical Mechanics
G. Ortiz, C. D. Batista
We present a theoretical framework and a calculational scheme to study the coexistence and competition of thermodynamic phases in quantum statistical mechanics. The crux of the met…
cond-mat.str-el2002★ 133 cited
Algebraic Approach to Interacting Quantum Systems
C. D. Batista, G. Ortiz
We present an algebraic framework for interacting extended quantum systems to study complex phenomena characterized by the coexistence and competition of different states of matter…