Le, TP;
Mironowicz, P;
Horodecki, P;
(2020)
Blurred quantum Darwinism across quantum reference frames.
Physical Review A
, 102
(6)
, Article 062420. 10.1103/PhysRevA.102.062420.
Preview |
Text
PhysRevA.102.062420.pdf - Published Version Download (1MB) | Preview |
Abstract
Quantum Darwinism describes objectivity of quantum systems via their correlations with their environment—information that hypothetical observers can recover by measuring the environments. However, observations are done with respect to a frame of reference. Here we take the formalism of [Giacomini et al., Nat. Commun. 10, 494 (2019)] and consider the repercussions on objectivity when changing quantum reference frames. We find that objectivity depends on nondegenerative relative separations, conditional state localization, and environment macrofractions. There is different objective information in different reference frames due to the interchangeability of entanglement and coherence, and of statistical mixing and classical correlations. As such, objectivity is subjective across quantum reference frames.
| Type: | Article |
|---|---|
| Title: | Blurred quantum Darwinism across quantum reference frames |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevA.102.062420 |
| Publisher version: | https://doi.org/10.1103/PhysRevA.102.062420 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| 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 |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10119064 |
Archive Staff Only
 |
View Item |
