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- Centre National de la Recherche ScientifiqueFR423 papers
- Leibniz Institute for Astrophysics PotsdamDE402 papers
- Deutsches Elektronen-Synchrotron DESYDE252 papers
- Heidelberg UniversityDE210 papers
- Humboldt-Universität zu BerlinDE202 papers
- Center for Astrophysics Harvard & SmithsonianUS172 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE172 papers
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7 papers · 2 filters
A Bose-Einstein condensate bouncing off a rough mirror
Hélène Perrin, Yves Colombe, Brigitte Mercier +2
We present experimental results and theoretical analysis of the diffuse reflection of a Bose-Einstein condensate from a rough mirror. The mirror is produced by a blue-detuned evane…
Correlations, spectral gap, and entanglement in harmonic quantum systems on generic lattices
M. Cramer, J. Eisert
We investigate the relationship between the gap between the energy of the ground state and the first excited state and the decay of correlation functions in harmonic lattice system…
Half the entanglement in critical systems is distillable from a single specimen
R. Orus, J. I. Latorre, J. Eisert +1
We establish that the leading critical scaling of the single-copy entanglement is exactly one half of the entropy of entanglement of a block in critical infinite spin chains in a g…
An entanglement-area law for general bosonic harmonic lattice systems
M. Cramer, J. Eisert, M. B. Plenio +1
We demonstrate that the entropy of entanglement and the distillable entanglement of regions with respect to the rest of a general harmonic lattice system in the ground or a thermal…
Single-copy entanglement in critical spin chains
J. Eisert, M. Cramer
We introduce the single-copy entanglement as a quantity to assess quantum correlations in the ground state in quantum many-body systems. We show for a large class of models that al…
A simple quantum gate with atom chips
M. A. Cirone, A. Negretti, T. Calarco +2
We present a simple scheme for implementing an atomic phase gate using two degrees of freedom for each atom and discuss its realization with cold rubidium atoms on atom chips. We i…