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Showing 1998 · quant-phShow all
3 papers · 2 filters
quant-ph1998
Quasi-classical dynamics of interacting Bose condensates
A. N. Salgueiro, M. C. Nemes, M. D. Sampaio +1
The dynamics of the composition of uniform Bose condensates involving two species capable of reciprocal interconversion is treated in terms of a collective quasi-spin model. This c…
quant-ph1998★ 17 cited
Decoherence of mesoscopic states of cavity fields
K. Fonseca Romero, M. C. Nemes, J. G. Peixoto de Faria +2
We show that two-atom correlation measurements of the type involved in a recent experimental study of the evolution of a mesoscopic superposition state prepared in a definite mode…
quant-ph1998★ 16 cited
Security of Quantum Key Distribution Against All Collective Attacks
Eli Biham, Michel Boyer, Gilles Brassard +2
Security of quantum key distribution against sophisticated attacks is among the most important issues in quantum information theory. In this work we prove security against a very i…