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Study of the spatial and temporal coherence of high order harmonics
Pascal Salières, Anne L'Huillier, Philippe Antoine +1
We apply the theory of high-order harmonic generation by low-frequency laser fields in the strong field approximation to the study of the spatial and temporal coherence properties…
Wave packet dynamics with Bose-Einstein condensates
R. Dum, A. Sanpera, K. -A. Suominen +4
We study wave packet dynamics of a Bose condensate in a periodically shaken trap. Dichotomy, that is, dynamic splitting of the condensate, and dynamic stabilization are analyzed in…
Separability and entanglement of composite quantum systems
Maciej Lewenstein, Anna Sanpera
We provide a constructive algorithm to find the best separable approximation to an arbitrary density matrix of a composite quantum system of finite dimensions. The method leads to…
Quantum Superposition States of Bose-Einstein Condensates
J. I. Cirac, M. Lewenstein, K. Moelmer +1
We propose a scheme to create a macroscopic ``Schödinger cat'' state formed by two interacting Bose condensates. In analogy with quantum optics, where the control and engineering o…