Polkovnikov, Anatoli2019-08-232019-08-232003-09-01A Polkovnikov. 2003. "Evolution of the macroscopically entangled states in optical lattices." PHYSICAL REVIEW A, Volume 68, Issue 3, pp. ? - ? (13). https://doi.org/10.1103/PhysRevA.68.0336092469-99262469-9934https://hdl.handle.net/2144/37233We 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.13 p.en-USScience & technologyPhysical sciencesOpticsPhysics, atomic, molecular & chemicalPhysicsBose-Einstein condensationGasesTransitionSuperfluidInsulatorCoherentArticle10.1103/PhysRevA.68.0336090000-0002-5549-7400 (Polkovnikov, A)54772