Published August 25, 2017 | Version v1
Journal article Metadata-only

Separability criterion for three-qubit states with a four dimensional norm

Creators

  • 1. School of Mathematics and Systems Science, Beihang University, Beijing 100191 (China)
  • 2. Department of Mathematics, The University of Suwon, Gyeonggi-do 445-743 (Korea, Republic of)
  • 3. Department of Mathematics and Institute of Mathematics, Seoul National University, Seoul 151-742 (Korea, Republic of)

Description

We give a separability criterion for three qubit states in terms of diagonal and anti-diagonal entries. This gives us a complete characterization of separability when all the entries are zero except for diagonal and anti-diagonals. The criterion is expressed in terms of a norm arising from anti-diagonal entries. We compute this norm in several cases, so that we get criteria with which we can decide the separability by routine computations. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/1751-8121/aa7f9a

Additional details

Identifiers

DOI
10.1088/1751-8121/aa7f9a;

Publishing Information

Journal Title
Journal of Physics. A, Mathematical and Theoretical (Online)
Journal Volume
50
Journal Issue
34
Journal Page Range
[27 p.]
ISSN
1751-8121

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
49001340
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CALCULATION METHODS; FOUR-DIMENSIONAL CALCULATIONS; QUBITS
Descriptors DEC
INFORMATION; QUANTUM INFORMATION