skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Evidence for entanglement and full tomographic analysis of Bell states in a single-neutron system

Abstract

Tomographic measurements of Bell states of a single-neutron system in an interferometer were carried out. The spin-path joint measurements exhibit clear evidence of entanglement. Reconstructions of the density matrices of, practically complete, Bell states were accomplished. The fidelities as well as the concurrences of the generated states are determined by 0.79 and 0.75 as well as 0.59 and 0.52, respectively, which are again clear evidence of the spin-path entanglement in a single-neutron system.

Authors:
 [1];  [2]; ;  [1];  [3]; ; ;  [1]
  1. Atominstitut der Oesterreichischen Universitaeten, Stadionallee 2, A-1020 Vienna (Austria)
  2. (Japan)
  3. (France)
Publication Date:
OSTI Identifier:
21027952
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 76; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.76.052108; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BELL THEOREM; DENSITY MATRIX; INTERFEROMETERS; INTERFEROMETRY; NEUTRONS; PARTICLES; QUANTUM ENTANGLEMENT; QUANTUM MECHANICS; SPIN; TOMOGRAPHY

Citation Formats

Hasegawa, Yuji, PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama, Loidl, Rudolf, Filipp, Stefan, Institut Laue Langevin, Boite Postale 156, F-38042 Grenoble Cedex 9, Badurek, Gerald, Klepp, Juergen, and Rauch, Helmut. Evidence for entanglement and full tomographic analysis of Bell states in a single-neutron system. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.76.052108.
Hasegawa, Yuji, PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama, Loidl, Rudolf, Filipp, Stefan, Institut Laue Langevin, Boite Postale 156, F-38042 Grenoble Cedex 9, Badurek, Gerald, Klepp, Juergen, & Rauch, Helmut. Evidence for entanglement and full tomographic analysis of Bell states in a single-neutron system. United States. doi:10.1103/PHYSREVA.76.052108.
Hasegawa, Yuji, PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama, Loidl, Rudolf, Filipp, Stefan, Institut Laue Langevin, Boite Postale 156, F-38042 Grenoble Cedex 9, Badurek, Gerald, Klepp, Juergen, and Rauch, Helmut. Thu . "Evidence for entanglement and full tomographic analysis of Bell states in a single-neutron system". United States. doi:10.1103/PHYSREVA.76.052108.
@article{osti_21027952,
title = {Evidence for entanglement and full tomographic analysis of Bell states in a single-neutron system},
author = {Hasegawa, Yuji and PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama and Loidl, Rudolf and Filipp, Stefan and Institut Laue Langevin, Boite Postale 156, F-38042 Grenoble Cedex 9 and Badurek, Gerald and Klepp, Juergen and Rauch, Helmut},
abstractNote = {Tomographic measurements of Bell states of a single-neutron system in an interferometer were carried out. The spin-path joint measurements exhibit clear evidence of entanglement. Reconstructions of the density matrices of, practically complete, Bell states were accomplished. The fidelities as well as the concurrences of the generated states are determined by 0.79 and 0.75 as well as 0.59 and 0.52, respectively, which are again clear evidence of the spin-path entanglement in a single-neutron system.},
doi = {10.1103/PHYSREVA.76.052108},
journal = {Physical Review. A},
issn = {1050-2947},
number = 5,
volume = 76,
place = {United States},
year = {2007},
month = {11}
}