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- Austrian Academy of SciencesAT61 papers
- Universität InnsbruckAT60 papers
- University of ViennaAT16 papers
- Max Planck Institute of Quantum OpticsDE10 papers
- Ludwig-Maximilians-Universität MünchenDE5 papers
- Hungarian Academy of SciencesHU4 papers
- IkerbasqueES4 papers
- Institute for Solid State Physics and OpticsHU4 papers
- Leibniz University HannoverDE4 papers
- University of the Basque CountryES4 papers
- Harvard UniversityUS3 papers
- Imperial College LondonGB3 papers
32 papers · 1 filter
Entanglement and permutational symmetry
Geza Toth, Otfried Gühne
We study the separability of permutationally symmetric quantum states. We show that for bipartite symmetric systems most of the relevant entanglement criteria coincide. However, we…
Unifying all classical spin models in a Lattice Gauge Theory
G. De las Cuevas, W. Dür, H. J. Briegel +1
We show that the partition function of all classical spin models, including all discrete Standard Statistical Models and all abelian discrete Lattice Gauge Theories (LGTs), can be…
Classical spin systems and the quantum stabilizer formalism: general mappings and applications
R. Hübener, M. Van den Nest, W. Dür +1
We present general mappings between classical spin systems and quantum physics. More precisely, we show how to express partition functions and correlation functions of arbitrary cl…
High fidelity entanglement of 43Ca+ hyperfine clock states
G. Kirchmair, J. Benhelm, F. Zähringer +3
In an experiment using the odd calcium isotope 43Ca+ we combine the merits of a high fidelity entangling operation on an optical transition (optical qubit) with the long coherence…
Entanglement detection
Otfried Gühne, Geza Toth
How can one prove that a given state is entangled? In this paper we review different methods that have been proposed for entanglement detection. We first explain the basic elements…
Valence Bond States: Link models
E. Rico, R. Hübener, S. Montangero +4
An isotropic anti-ferromagnetic quantum state on a square lattice is characterized by symmetry arguments only. By construction, this quantum state is the result of an underlying va…