Published October 2003
| Version v1
Journal article
Galilean covariance of a reduced density matrix
- 1. Department of Theoretical Physics, University of Lodz, Pomorska 149/153, 90-236 Lodz (Poland)
Description
We consider a system of two spin-s particles. We show that the reduced density matrix of this system obtained by tracing out over momentum is invariant under Galilean boosts and translations, and covariant under rotations. It implies that the spin entanglement of the system is the same for all Galilean observers
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 68
- Journal Issue
- 4
- Journal Page Range
- p. 044101-044101.3
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36082367
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- CORRELATIONS; DATA TRANSMISSION; DENSITY MATRIX; ENERGY LEVELS; INFORMATION THEORY; QUANTUM MECHANICS; ROTATION; SPIN
- Descriptors DEC
- ANGULAR MOMENTUM; COMMUNICATIONS; MATRICES; MECHANICS; MOTION; PARTICLE PROPERTIES
Optional Information
- Notes
- (c) 2003 The American Physical Society