Published October 2011 | Version v1
Journal article Metadata-only

Geometric analysis of entangled qubit pairs

Creators

  • 1. Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana, Slovenia and J Stefan Institute, Ljubljana (Slovenia)

Description

Two entangled electron spins, or qubits, are analysed in terms of ordinary three-dimensional space geometric properties, as are the angles between their angular momenta. This formulation allows concurrence, a measure of quantum entanglement, to be expressed as expectation values of trigonometric functions of the azimuthal angle between the two angular momenta. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/1367-2630/13/10/103037

Additional details

Identifiers

DOI
10.1088/1367-2630/13/10/103037;

Publishing Information

Journal Title
New Journal of Physics
Journal Volume
13
Journal Issue
10
Journal Page Range
[7 p.]
ISSN
1367-2630

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44004687
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ANGULAR MOMENTUM; ELECTRONS; QUANTUM ENTANGLEMENT; QUBITS; SPIN; THREE-DIMENSIONAL CALCULATIONS
Descriptors DEC
ANGULAR MOMENTUM; ELEMENTARY PARTICLES; FERMIONS; INFORMATION; LEPTONS; PARTICLE PROPERTIES; QUANTUM INFORMATION