Quantum cloning for absolute radiometry.
Phys Rev Lett
; 105(8): 080503, 2010 Aug 20.
Article
in En
| MEDLINE
| ID: mdl-20868085
ABSTRACT
In the quantum regime information can be copied with only a finite fidelity. This fidelity gradually increases to 1 as the system becomes classical. In this Letter we show how this fact can be used to directly measure the amount of radiated power. We demonstrate how these principles can be used to build a practical primary standard.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2010
Document type:
Article
Affiliation country:
Switzerland