期刊
PHYSICAL REVIEW LETTERS
卷 103, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.140406
关键词
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资金
- Ente Cassa di Risparmio di Firenze
- CNR-RSTL
- U. K. EPSRC
- QIP IRC
- WCU
- Korea government (MEST) [R11-2008-095-01000-0]
We present the experimental realization of a scheme, based on single-photon interference, for implementing superpositions of distinct quantum operations. Its application to a thermal light field (a well-categorized classical entity) illustrates quantum superposition from a new standpoint and provides a direct and quantitative verification of the bosonic commutation relation between creation and annihilation operators. By shifting the focus towards operator superpositions, this result opens interesting alternative perspectives for manipulating quantum states.
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