3.9k citations
- Centre National de la Recherche ScientifiqueFR208 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR130 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR124 papers
- Université Paris-SaclayFR90 papers
- Massachusetts Institute of TechnologyUS81 papers
- University of SurreyGB76 papers
- University of ManchesterGB72 papers
- University of OxfordGB71 papers
- University of WarsawPL68 papers
- Imperial College LondonGB66 papers
- European Organization for Nuclear ResearchCH64 papers
- GSI Helmholtz Centre for Heavy Ion ResearchDE62 papers
10 papers · 2 filters
Entanglement and density-functional theory: testing approximations on Hooke's atom
J. P. Coe, A. Sudbery, I. D'Amico
We present two methods of calculating the spatial entanglement of an interacting electron system within the framework of density-functional theory. These methods are tested on the…
Creating and preserving multi-partite entanglement with spin chains
Irene D'Amico, Brendon W. Lovett, Timothy P. Spiller
We show how multi-partite entanglement, such as of W-state form, can be created in branched spin chain systems. We also discuss the preservation of such entanglement, once created.…
Freezing distributed entanglement in spin chains
Irene D'Amico, Brendon W. Lovett, Timothy P. Spiller
We show how to freeze distributed entanglement that has been created from the natural dynamics of spin chain systems. The technique that we propose simply requires single-qubit ope…
The Structure of Classical Extensions of Quantum Probability Theory
Werner Stulpe, Paul Busch
On the basis of a suggestive definition of a classical extension of quantum mechanics in terms of statistical models, we prove that every such classical extension is essentially gi…
Approximate joint measurements of qubit observables
Paul Busch, Teiko Heinosaari
Joint measurements of qubit observables have recently been studied in conjunction with quantum information processing tasks such as cloning. Considerations of such joint measuremen…
Experimental demonstration of quantum teleportation of broadband squeezing
Hidehiro Yonezawa, Samuel L. Braunstein, Akira Furusawa
We demonstrate an unconditional high-fidelity teleporter capable of preserving the broadband entanglement in an optical squeezed state. In particular, we teleport a squeezed state…