Entanglement in many-body systems
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 …
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
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 …
also describe their possible connections with other aspects of quantum information and …
Evolution of entanglement entropy in one-dimensional systems
P Calabrese, J Cardy - Journal of Statistical Mechanics: Theory …, 2005 - iopscience.iop.org
We study the unitary time evolution of the entropy of entanglement of a one-dimensional
system between the degrees of freedom in an interval of length and its complement, starting …
system between the degrees of freedom in an interval of length and its complement, starting …
Dynamics of a quantum phase transition and relaxation to a steady state
J Dziarmaga - Advances in Physics, 2010 - Taylor & Francis
We review recent theoretical work on two closely related issues: excitation of an isolated
quantum condensed matter system driven adiabatically across a continuous quantum phase …
quantum condensed matter system driven adiabatically across a continuous quantum phase …
Quantum quenches in extended systems
P Calabrese, J Cardy - Journal of Statistical Mechanics: Theory …, 2007 - iopscience.iop.org
We study in general the time evolution of correlation functions in a extended quantum
system after the quench of a parameter in the Hamiltonian. We show that correlation …
system after the quench of a parameter in the Hamiltonian. We show that correlation …
Quantum communication through spin chain dynamics: an introductory overview
S Bose - Contemporary Physics, 2007 - Taylor & Francis
We present an introductory overview of the use of spin chains as quantum wires, which has
recently developed into a topic of lively interest. The principal motivation is in connecting …
recently developed into a topic of lively interest. The principal motivation is in connecting …
Entanglement and correlation functions following a local quench: a conformal field theory approach
P Calabrese, J Cardy - Journal of Statistical Mechanics: Theory …, 2007 - iopscience.iop.org
We show that the dynamics resulting from preparing a one-dimensional quantum system in
the ground state of two decoupled parts, then joined together and left to evolve unitarily with …
the ground state of two decoupled parts, then joined together and left to evolve unitarily with …
Witnessing entanglement in quantum magnets using neutron scattering
We demonstrate how quantum entanglement can be directly witnessed in the quasi-1D
Heisenberg antiferromagnet KCuF 3. We apply three entanglement witnesses—one tangle …
Heisenberg antiferromagnet KCuF 3. We apply three entanglement witnesses—one tangle …
Quantum coherence and uncertainty in the anisotropic XY chain
We explore the local quantum coherence and the local quantum uncertainty, based on
Wigner-Yanase skew information, in the ground state of the anisotropic spin-1/2 XY chain in …
Wigner-Yanase skew information, in the ground state of the anisotropic spin-1/2 XY chain in …
Entanglement entropy dynamics of Heisenberg chains
G De Chiara, S Montangero… - Journal of Statistical …, 2006 - iopscience.iop.org
By means of the time dependent density matrix renormalization group algorithm we study
the zero-temperature dynamics of the Von Neumann entropy of a block of spins in a …
the zero-temperature dynamics of the Von Neumann entropy of a block of spins in a …