Singlet-aided infinite resource reduction in the comparison of distant fields - art. no. 032313

Authors
Bose, S Huelga, SF Plenio, MB
Citation
S. Bose et al., Singlet-aided infinite resource reduction in the comparison of distant fields - art. no. 032313, PHYS REV A, 6303(3), 2001, pp. 2313
Citations number
14
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
6303
Issue
3
Year of publication
2001
Database
ISI
SICI code
1050-2947(200103)6303:3<2313:SIRRIT>2.0.ZU;2-8
Abstract
We present a task that can be faithfully solved with finite resources only when aided by particles prepared in a particular entangled state: the singl et state. The task consists of identifying the mutual parallelity or orthog onality of weak distant magnetic fields whose absolute directions are compl etely unknown.