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Revivals in the attractive BEC in a double-well potential and their decoherence
Revivals attractive BEC double-well potential their decoherence
2010/11/11
We study the dynamics of ultracold attractive atoms in a weakly linked two potential wells. We consider an unbalanced initial state and monitor dynamics of the population difference between the two we...
Do revivals of quantum correlations necessarily require quantum noise?
revivals quantum correlations necessarily quantum noise
2010/10/21
We show that in an N-partite system, where each subsystem is subject to a local completely
positive map, total correlations cannot, at later times, exceed their initial value. We then analyze the dyn...
Wave packet revivals in a graphene quantum dot in a perpendicular magnetic field
packet revivals graphene quantum dot perpendicular magnetic field
2010/10/27
We study the time-evolution of localized wavepackets in graphene quantum dots in a perpendicular magnetic field, focusing on the quasiclassical and revival periodicities, for different values of the m...
Collapses and revivals of stored orbital angular momentum of light in a cold atomic ensemble
Collapses orbital angular momentum light atomic ensemble
2010/4/8
We report on the storage of orbital angular momentum of light in a cold ensemble of cesium atoms. We employ Bragg diffraction to retrieve the stored optical information impressed into the atomic coher...