Journal
PHYSICAL REVIEW LETTERS
Volume 101, Issue 26, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.260401
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Funding
- Ente Cassa di Risparmio di Firenze
- MIUR-PRIN
- CNR-RSTL
- EPSRC
- QIP IRC
- Korea government (MEST) [R11-2008-095-01000-0]
- Engineering and Physical Sciences Research Council [EP/F049099/1] Funding Source: researchfish
- EPSRC [EP/F049099/1] Funding Source: UKRI
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We propose an experiment to directly prove the commutation relation between bosonic annihilation and creation operators, based on the recent experimental success in single-photon subtraction and addition. We devise a single-photon interferometer to realize coherent superpositions of two sequences of photon addition and subtraction. Depending on the interference outcome, the commutation relation is directly proven or a highly nonclassical state is produced. Experimental imperfections are assessed to show that the realization of the scheme is highly feasible.
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