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- Institute for Quantum Optics and Quantum Information InnsbruckAT43 papers
- Universität InnsbruckAT43 papers
- University of ViennaAT22 papers
- The University of TokyoJP10 papers
- Institute of High Energy PhysicsCN9 papers
- Polish Academy of SciencesPL9 papers
- Seoul National UniversityKR9 papers
- University of LjubljanaSI9 papers
- University of Nova GoricaSI9 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Max Planck Institute of Quantum OpticsDE8 papers
- High Energy Accelerator Research OrganizationJP7 papers
8 papers · 2 filters
Entanglement-assisted Orientation in Space
Caslav Brukner, Nikola Paunkovic, Terry Rudolph +1
We demonstrate that quantum entanglement can help separated individuals in making decisions if their goal is to find each other in the absence of any communication between them. We…
Experimental Analysis of a 4-Qubit Cluster State
Nikolai Kiesel, Christian Schmid, Ulrich Weber +4
Linear optics quantum logic operations enabled the observation of a four-photon cluster state. We prove genuine four-partite entanglement and study its persistency, demonstrating r…
Entanglement between Collective Operators in a Linear Harmonic Chain
Johannes Kofler, Vlatko Vedral, Myungshik S. Kim +1
We investigate entanglement between collective operators of two blocks of oscillators in an infinite linear harmonic chain. These operators are defined as averages over local opera…
Distillation of multipartite entanglement by complementary stabilizer measurements
Akimasa Miyake, Hans J. Briegel
We propose a scheme of multipartite entanglement distillation driven by a complementary pair of stabilizer measurements, to distill directly a wider range of states beyond the stab…
Addendum to "Sufficient conditions for three-particle entanglement and their tests in recent experiments"
Geza Toth, Otfried Guehne, Michael Seevinck +1
A recent paper [M. Seevinck and J. Uffink, Phys. Rev. A 65, 012107 (2002)] presented a bound for the three-qubit Mermin inequality such that the violation of this bound indicates g…
Multipartite entanglement in spin chains
Otfried Guehne, Geza Toth, Hans J. Briegel
We investigate the presence of multipartite entanglement in macroscopic spin chains. We discuss the Heisenberg and the XY model and derive bounds on the internal energy for systems…