Horodecki, M;
Horodecki, P;
Oppenheim, J;
(2003)
Reversible transformations from pure to mixed states and the unique measure of information.
Physical Review A
, 67
, Article 6. 10.1103/PhysRevA.67.062104.
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Abstract
Transformations from pure to mixed states are usually associated with information loss and irreversibility. Here, a protocol is demonstrated allowing one to make these transformations reversible. The pure states are diluted with a random noise source. Using this protocol one can study optimal transformations between states, and from this derive the unique measure of information. This is compared to irreversible transformations where one does not have access to noise. The ideas presented here shed some light on attempts to understand entanglement manipulations and the inevitable irreversibility encountered there where one finds that mixed states can contain "bound entanglement".
| Type: | Article |
|---|---|
| Title: | Reversible transformations from pure to mixed states and the unique measure of information |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevA.67.062104 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevA.67.062104 |
| Language: | English |
| Additional information: | © 2003 The American Physical Society |
| 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-pp.ucl.ac.uk/id/eprint/1362175 |
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