Adesso, G;
Serafini, A;
Illuminati, F;
(2004)
Determination of continuous variable entanglement by purity measurements.
PHYS REV LETT
, 92
(8)
, Article 087901. 10.1103/PhysRevLett.92.087901.
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Abstract
We classify the entanglement of two-mode Gaussian states according to their degree of total and partial mixedness. We derive exact bounds that determine maximally and minimally entangled states for fixed global and marginal purities. This characterization allows for an experimentally reliable estimate of continuous variable entanglement based on measurements of purity.
| Type: | Article |
|---|---|
| Title: | Determination of continuous variable entanglement by purity measurements |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.92.087901 |
| Keywords: | CRITERION, SYSTEMS, STATES |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10010 |
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