Resultados globales: 3 registros encontrados en 0.02 segundos.
Artículos, Encontrados 3 registros
Artículos Encontrados 3 registros  
1.
6 p, 133.7 KB Laser cooling of trapped atoms to the ground state : a dark state in position space / Morigi, Giovanna (Universität Innsbruck. Institut für Theoretische Physik) ; Cirac Sasturáin, Juan Ignacio, 1965- (Universität Innsbruck. Institut für Theoretische Physik) ; Ellinger, K. (Universität Innsbruck. Institut für Theoretische Physik) ; Zoller, P. (Universität Innsbruck. Institut für Theoretische Physik) ; American Physical Society
We propose a scheme that allows us to laser cool trapped atoms to the ground state of a one-dimensional confining potential. The scheme is based on the creation of a dark state by designing the laser profile, so that the hottest atoms are coherently pumped to another internal level, and then repumped back. [...]
1998 - 10.1103/PhysRevA.57.2909
Physical review. A, Vol. 57, Issue 4 (April 1998) , p. 2909-2914  
2.
12 p, 502.6 KB Laser cooling of two trapped ions : sideband cooling beyond the Lamb-Dicke limit / Morigi, Giovanna (Universität Innsbruck. Institut für Theoretische Physik) ; Eschner, Jürgen (Universität Innsbruck. Institut für Experimentalphysik) ; Cirac Sasturáin, Juan Ignacio, 1965- (Universität Innsbruck. Institut für Theoretische Physik) ; Zoller, P. (Universität Innsbruck. Institut für Theoretische Physik) ; American Physical Society
We study laser cooling of two ions that are trapped in a harmonic potential and interact by Coulomb repulsion. Sideband cooling in the Lamb-Dicke regime is shown to work analogously to sideband cooling of a single ion. [...]
1999 - 10.1103/PhysRevA.59.3797
Physical review. A, Vol. 59, Issue 5 (May 1999) , p. 3797-3808  
3.
4 p, 107.7 KB Quantum key distillation from Gaussian states by Gaussian operations / Navascués, M. (Institut de Ciències Fotòniques (Barcelona, Catalunya)) ; Bae, J. (Institut de Ciències Fotòniques (Barcelona, Catalunya)) ; Cirac Sasturáin, Juan Ignacio, 1965- (Max-Planck Institut für Quantenoptik) ; Lewestein, Maciej (Institut de Ciències Fotòniques (Barcelona, Catalunya)) ; Sanpera Trigueros, Anna (Institut de Ciències Fotòniques (Barcelona, Catalunya)) ; Acín, Antonio (Institut de Ciències Fotòniques (Barcelona, Catalunya)) ; American Physical Society
We study the secrecy properties of Gaussian states under Gaussian operations. Although such operations are useless for quantum distillation, we prove that it is possible to distill a secret key secure against any attack from sufficiently entangled Gaussian states with nonpositive partial transposition. [...]
2005 - 10.1103/PhysRevLett.94.010502
Physical review letters, Vol. 94, Issue 1 (January 2005) , p. 010502  

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