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11 papers · 2 filters
Stückelberg-Interferometry with ultra-cold atoms
Patrick Plötz, Sandro Wimberger
We show that and how ultra-cold atoms in an accelerated two-band lattice are a controlled realization of Landau--Zener--Stückelberg interferometry.
Evolution equation of entanglement for multi-qubit systems
Michael Siomau, Stephan Fritzsche
We discuss entanglement evolution of a multi-qubit system when one of its qubits is subjected to a general noisy channel. For such a system, an evolution equation of entanglement f…
Verifying Genuine High-Order Entanglement
Che-Ming Li, Kai Chen, Andreas Reingruber +2
High-order entanglement embedded in multipartite multilevel quantum systems (qudits) with many degrees of freedom (DOFs) plays an important role in quantum foundation and quantum e…
EPR entanglement strategies in two-well BEC
Q. Y. He, M. D. Reid, C. Gross +2
Criteria suitable for measuring entanglement between two different potential wells in a Bose- Einstein condensation (BEC) are evaluated. We show how to generate the required entang…
Effective spin model for interband transport in a Wannier-Stark lattice system
Patrick Plötz, Peter Schlagheck, Sandro Wimberger
We show that the interband dynamics in a tilted two-band Bose-Hubbard model can be reduced to an analytically accessible spin model in the case of resonant interband oscillations.…
Einstein-Podolsky-Rosen Correlations of Ultracold Atomic Gases
Nir Bar-Gill, Christian Gross, Gershon Kurizki +2
Einstein, Podolsky & Rosen (EPR) pointed out that correlations induced between quantum objects will persist after these objects have ceased to interact. Consequently, their joint c…