Brougham, T. and Andersson, E. and Barnett, S.M. (2009) Entropic uncertainties for joint quantum measurements. Physical Review A, 80 (4). ISSN 1050-2947
Full text not available in this repository. (Request a copy from the Strathclyde author)Official URL: http://dx.doi.org/10.1103/PhysRevA.80.042106
Abstract
We investigate the uncertainty associated with a joint quantum measurement of two spin components of a spin- 1 2 particle and quantify this in terms of entropy. We consider two entropic quantities, the joint entropy and the sum of the marginal entropies, and obtain lower bounds for each of these quantities. For the case of joint measurements where we measure each spin observable equally well, these lower bounds are tight.
| Item type: | Article |
|---|---|
| ID code: | 18899 |
| Keywords: | entropic uncertainties, joint quantum measurements, Physics |
| Subjects: | Science > Physics |
| Department: | Faculty of Science > Physics |
| Related URLs: | |
| Depositing user: | Strathprints Administrator |
| Date Deposited: | 20 May 2010 16:29 |
| Last modified: | 04 Oct 2012 13:14 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/18899 |
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