Entanglement in the Bogoliubov vacuum

We analyze the entanglement properties of the Bogoliubov vacuum, which is obtained as a second-order approximation to the ground state of an interacting Bose-Einstein condensate. We work on one- and two-dimensional lattices and study the entanglement between two groups of lattice sites as a function...

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Veröffentlicht in:	Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2005-06, Vol.71 (6), Article 063605
Hauptverfasser:	Poulsen, U. V., Meyer, T., Lewenstein, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	ATOMIC AND MOLECULAR PHYSICS BOSE-EINSTEIN CONDENSATION GEOMETRY GROUND STATES QUANTUM ENTANGLEMENT STRONG INTERACTIONS TWO-DIMENSIONAL CALCULATIONS WEAK INTERACTIONS
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