Published September 2011 | Version v1
Journal article Metadata-only

Maximal and total skew information for a two-qubit system using nonlinear interaction models

Creators

  • 1. Mechanical and Electrical Engineering College, Jiaxing University, Jiaxing 314001 (China)
  • 2. School of Physics and Electric Engineering, Anqing Teachers College, Anqing 246011 (China)
  • 3. College of Physics, Changchun Normal University, Changchun 130032 (China)

Description

Maximal and total skew information is studied. For symmetric pure states of two-qubit, they are closely related to the linear entropy, the concurrence, and the spin squeezing parameter. For a two-qubit system implemented in three nonlinear interaction models with an external field, we give the exact state vectors and the expectation value at any time t. Based on 2, we give the maximal and the total skew information and a condition in which the maximal and the total skew information can reach 1 and 2, respectively. (general)

Availability note (English)

Available from http://dx.doi.org/10.1088/1674-1056/20/9/090301

Additional details

Identifiers

DOI
10.1088/1674-1056/20/9/090301;

Publishing Information

Journal Title
Chinese Physics. B
Journal Volume
20
Journal Issue
9
Journal Page Range
[7 p.]
ISSN
1674-1056

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45015371
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ENTROPY; EXPECTATION VALUE; NONLINEAR PROBLEMS; PURE STATES; QUANTUM MECHANICS; QUBITS; SPIN; SYMMETRY; VECTORS
Descriptors DEC
ANGULAR MOMENTUM; INFORMATION; MECHANICS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; QUANTUM INFORMATION; QUANTUM STATES; TENSORS; THERMODYNAMIC PROPERTIES