Entanglement in many-body systems

L Amico, R Fazio, A Osterloh, V Vedral - Reviews of modern physics, 2008 - APS
Recent interest in aspects common to quantum information and condensed matter has
prompted a flurry of activity at the border of these disciplines that were far distant until a few …

Quantum discord and its allies: a review of recent progress

A Bera, T Das, D Sadhukhan, SS Roy… - Reports on Progress …, 2017 - iopscience.iop.org
We review concepts and methods associated with quantum discord and related topics. We
also describe their possible connections with other aspects of quantum information and …

Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond

M Lewenstein, A Sanpera, V Ahufinger… - Advances in …, 2007 - Taylor & Francis
We review recent developments in the physics of ultracold atomic and molecular gases in
optical lattices. Such systems are nearly perfect realisations of various kinds of Hubbard …

Scaling of entanglement close to a quantum phase transition

A Osterloh, L Amico, G Falci, R Fazio - Nature, 2002 - nature.com
Classical phase transitions occur when a physical system reaches a state below a critical
temperature characterized by macroscopic order. Quantum phase transitions occur at …

Entanglement in a simple quantum phase transition

TJ Osborne, MA Nielsen - Physical Review A, 2002 - APS
What entanglement is present in naturally occurring physical systems at thermal
equilibrium? Most such systems are intractable and it is desirable to study simple but …

Ground state entanglement in quantum spin chains

JI Latorre, E Rico, G Vidal - arXiv preprint quant-ph/0304098, 2003 - arxiv.org
A microscopic calculation of ground state entanglement for the XY and Heisenberg models
shows the emergence of universal scaling behavior at quantum phase transitions …

Global entanglement in multiparticle systems

DA Meyer, NR Wallach - Journal of Mathematical Physics, 2002 - pubs.aip.org
Although entanglement has been recognized as a remarkable feature of quantum
mechanics since Schrödinger introduced the word1 in response to Einstein, Podolsky and …

Minimally entangled typical thermal state algorithms

EM Stoudenmire, SR White - New Journal of Physics, 2010 - iopscience.iop.org
We discuss a method based on sampling minimally entangled typical thermal states
(METTS) that can simulate finite temperature quantum systems with a computational cost …

Entanglement versus correlations in spin systems

F Verstraete, M Popp, JI Cirac - Physical review letters, 2004 - APS
We consider pure quantum states of N≫ 1 spins or qubits and study the average
entanglement that can be localized between two separated spins by performing local …

Quantum entanglement in fermionic lattices

P Zanardi - Physical review A, 2002 - APS
The Fock space of a system of indistinguishable particles is isomorphic (in a nonunique
way) to the state space of a composite, ie, many modes, quantum system. One can then …