19 citations · 23 across the 5 of their papers we have counts for
6 papers
Hierarchical Mean-Field Theories
Gerardo Ortiz, Cristian D. Batista
We present a systematic and reliable methodology, termed hierarchical mean-field theory (HMFT), to study and predict the behavior of strongly coupled many-particle systems. HMFT is…
Entanglement beyond subsystems
Lorenza Viola, Howard Barnum, Emanuel Knill +2
We present a notion of generalized entanglement which goes beyond the conventional definition based on quantum subsystems. This is accomplished by directly defining entanglement as…
Entanglement as an Observer-Dependent Concept: An Application to Quantum Phase Transitions
Gerardo Ortiz, Rolando Somma, Howard Barnum +2
This paper addresses the following main question: Do we have a theoretical understanding of entanglement applicable to a full variety of physical settings? It is clear that not onl…
Introduction to Quantum Information Processing
E. Knill, R. Laflamme, H. Barnum +7
As a result of the capabilities of quantum information, the science of quantum information processing is now a prospering, interdisciplinary field focused on better understanding t…
Spin-Particle Connections
C. D. Batista, G. Ortiz
This is a topical review on the generalization of the Jordan-Wigner transformations to any spin and spatial dimensions.
Superconductivity and Topological Numbers in the Hubbard Chain with Bond-Charge Interaction
A. A. Aligia, K. Hallberg, C. D. Batista +1
We determine the quantum phase diagram of the Hubbard chain with electron-hole symmetric correlated hopping at 1/2- and 1/4-filling using geometric concepts and continuum limit fie…