Published July 1996
| Version v1
Journal article
Average Entropy of a Quantum Subsystem
Description
It was recently conjectured by D. Page that if a quantum system of Hilbert space dimension nm is in a random pure state then the average entropy of a subsystem of dimension m where m≤n is Sm,n=(summation k=n+1mn1/k)-(m-1)/2n. In this Letter a simple proof of this conjecture is given. copyright 1996 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 77
- Journal Issue
- 1
- Journal Page Range
- p. 1-3.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27076445
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- DENSITY MATRIX; DISTRIBUTION; EIGENVALUES; ENTROPY; HILBERT SPACE; PROBABILITY; QUANTUM MECHANICS; UNITARY SYMMETRY
- Descriptors DEC
- BANACH SPACE; MATHEMATICAL SPACE; MATRICES; MECHANICS; PHYSICAL PROPERTIES; SPACE; SYMMETRY; THERMODYNAMIC PROPERTIES