Evolution of the macroscopically entangled states in optical lattices

2003/03/31 by Anatoli Polkovnikov · 1 citation
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Information and Cryptography #Quantum Mechanics and Applications #cond-mat.stat-mech #quant-ph

paper · pdf · doi:10.1103/physreva.68.033609

published as Phys. Rev. A, 68 (3), 033609 (2003) · 14 pages, 10 figures, Discussion of reversibility of entanglement is added

arxiv created 2003/05/22 · openalex publication_date 2003/09/19 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We consider dynamics of boson condensates in finite optical lattices under a slow external perturbation which brings the system to the unstable equilibrium. It is shown that quantum fluctuations drive the condensate into the maximally entangled state. We argue that the truncated Wigner approximation being a natural generalization of the Gross-Pitaevskii classical equations of motion is adequate to correctly describe the time evolution including both collapse and revival of the condensate.

Citations

• Nonequilibrium Gross-Pitaevskii dynamics of boson lattice models
• Mott insulators in strong electric fields

Cited by

• Quantum corrections to the dynamics of interacting bosons: Beyond the truncated Wigner approximation

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