PhysRevLett.117.180401.pdf (286.56 kB)
Wigner Functions for Arbitrary Quantum Systems
journal contribution
posted on 2016-10-13, 11:12 authored by Todd Tilma, Mark EverittMark Everitt, John Samson, W.J. Munro, Kae NemotoThe possibility of constructing a complete, continuous Wigner function for any quantum system has been a subject of investigation for over 50 years. A key system that has served to illustrate the difficulties of this problem has been an ensemble of spins. While numerous attempts have come close to generating a complete Wigner phase-space description for such a system, each has either been artificial in its construction or restricted in its applications. Here we present a general method of constructing Wigner functions that can be used to fully describe quantum spin systems of any
dimension or ensemble size.
Funding
MEXT Grant-in-Aid for Scientific Research on Innovative Areas "Science of hybrid quantum systems" Grant Number 15H05870 and JSPS KAKENHI Grant No. 25220601.
History
School
- Science
Department
- Physics
Published in
Physical Review LettersVolume
117Issue
18Citation
TILMA, T. ... et al, 2016. Wigner functions for arbitrary quantum systems. Physical Review Letters, 117 (18), 180401.Publisher
© American Physical SocietyVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2016-08-25Publication date
2016-10-24Notes
This paper was accepted for publication in the journal Physical Review Letters and is available at https://doi.org/10.1103/PhysRevLett.117.180401.ISSN
0031-9007eISSN
1079-7114Publisher version
Language
- en