Quantum computation and quantum information
Quantum computation and quantum information
Entanglement, Quantum Phase Transitions, and Density Matrix Renormalization
Quantum Information Processing
Block spin density matrix of the inhomogeneous AKLT model
Quantum Information Processing
Lagrangian representation for fermionic linear optics
Quantum Information & Computation
Two slightly-entangled NP-complete problems
Quantum Information & Computation
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A microscopic calculation of ground state entanglement for the XY and Heisenbergmodels shows the emergence of universal scaling behavior at quantum phase transitions,Entanglement is thus controlled by conformal symmetry, Away from the critical point,entanglement gets saturated by a mass scale, Results borrowed from conformal fieldtheory imply irreversibility of entanglement loss along renormalization group trajecto-ries. Entanglement does not saturate in higher dimensions which appears to limit thesuccess of the density matrix renormalization group technique. A possible connection be-tween majorization and renormalization group irreversibility emerges from our numericalanalysis.