Osnabrück 2002 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
Q: Quantenoptik
Q 432: Poster: Quanteninformation
Q 432.5: Poster
Donnerstag, 7. März 2002, 16:30–18:30, Schloss
Efficient and robust creation of many-particle entanglement by adiabaticpassage — •Razmik Unanyan1,2, Michael Fleischhauer1, Nikolay Vitanov3, and Klaas Bergmann1 — 1FB Physik, Univ. Kaiserslautern — 2Institute for Physical Research, Ashtarak, Armenia — 3Sofia University, Sofia, Bulgaria
We propose and discuss schemes for efficient and robust generation of complex entangled states in interacting many-particle systems governed by nonlinear spin Hamiltonians. Different dynamical techniques based on adiabatic passage are identified, that allow a controlled navigation in the multidimensional Hilbert space. Maximally entangled states, such as the N-particle analog of the Greenberger, Horne and Zeilinger (GHZ) state can be reached in a few steps. The process is robust and works for even and odd particle numbers. We discuss realizations of the model in ion-traps, two-component Bose condensates and frozen Rydberg gases with resonant dipole-dipole interaction [1].
[1] R. Unanyan and M. Fleischhauer, quant-ph/0111095