Published February 2010 | Version v1
Journal article Metadata-only

Multipartite entanglement and frustration

Creators

  • 1. Dipartimento di Matematica, Universita di Bari, I-70125 Bari (Italy)
  • 2. Istituto Nazionale di Fisica Nucleare, Sezione di Bari, I-70126 Bari (Italy)
  • 3. Dipartimento di Fisica, Universita di Trieste, and Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, I-34014 Trieste (Italy)
  • 4. Dipartimento di Fisica, Universita di Roma 'La Sapienza', Piazzale Aldo Moro 2, Centre for Statistical Mechanics and Complexity (SMC), CNR-INFM, and Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Roma (Italy)

Description

Some features of the global entanglement of a composed quantum system can be quantified in terms of the purity of a balanced bipartition, made up of half of its subsystems. For the given bipartition, purity can always be minimized by taking a suitable (pure) state. When many bipartitions are considered, the requirement that purity be minimal for all bipartitions can engender conflicts and frustration will arise. This unearths an interesting link between frustration and multipartite entanglement, defined as the average purity over all (balanced) bipartitions.

Availability note (English)

Available from http://dx.doi.org/10.1088/1367-2630/12/2/025015

Additional details

Identifiers

DOI
10.1088/1367-2630/12/2/025015;

Publishing Information

Journal Title
New Journal of Physics
Journal Volume
12
Journal Issue
2
Journal Page Range
[14 p.]
ISSN
1367-2630

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41061044
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
IMPURITIES; QUANTUM ENTANGLEMENT; QUANTUM MECHANICS
Descriptors DEC
MECHANICS