Unconditional pointer states from conditional master equations

Citation
Dar. Dalvit et al., Unconditional pointer states from conditional master equations, PHYS REV L, 86(3), 2001, pp. 373-376
Citations number
14
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
3
Year of publication
2001
Pages
373 - 376
Database
ISI
SICI code
0031-9007(20010115)86:3<373:UPSFCM>2.0.ZU;2-I
Abstract
When part of the environment responsible for decoherence is used to extract information about the decohering system, the preferred pointer states rema in unchanged. This conclusion-reached for aspecific class of models-is inve stigated in a general setting of conditional master equations using suitabl e generalizations of predictability sieve. We also find indications that th e einselected states are easiest to infer from the measurements carried out on the environment.