1.8k citations
- Max Planck SocietyDE105 papers
- Ludwig-Maximilians-Universität MünchenDE57 papers
- University of ViennaAT19 papers
- Austrian Academy of SciencesAT15 papers
- Universidad Complutense de MadridES14 papers
- Institute for Quantum Optics and Quantum Information InnsbruckAT12 papers
- Universität InnsbruckAT11 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Imperial College LondonGB8 papers
- Johannes Gutenberg University MainzDE7 papers
- National University of SingaporeSG7 papers
- The University of QueenslandAU7 papers
12 papers · 1 filter
Valence Bond Solids for Quantum Computation
F. Verstraete, J. I. Cirac
Cluster states are entangled multipartite states which enable to do universal quantum computation with local measurements only. We show that these states have a very simple interpr…
Diverging Entanglement Length in Gapped Quantum Spin Systems
F. Verstraete, M. A. Martin-Delgado, J. I. Cirac
We prove the existence of gapped quantum Hamiltonians whose ground states exhibit an infinite entanglement length, as opposed to their finite correlation length. Using the concept…
Single-atom trajectories in higher-order transverse modes of a high-finesse optical cavity
T. Puppe, P. Maunz, T. Fischer +2
Transits of single atoms through higher-order Hermite-Gaussian transverse modes of a high-finesse optical cavity are observed. Compared to the fundamental Gaussian mode, the use of…
Precision Study of Positronium: Testing Bound State QED Theory
Savely G. Karshenboim
As an unstable light pure leptonic system, positronium is a very specific probe atom to test bound state QED. In contrast to ordinary QED for free leptons, the bound state QED theo…
Entanglement Detection in Optical Lattices of Bosonic Atoms with Collective Measurements
Geza Toth
The minimum requirements for entanglement detection are discussed for a spin chain in which the spins cannot be individually accessed. The methods presented detect entangled states…
Entanglement versus Correlations in Spin Systems
F. Verstraete, M. Popp, J. I. Cirac
We consider pure quantum states of spins or qubits and study the average entanglement that can be \emph{localized} between two separated spins by performing local measurem…