Experimental demonstration of bosonic commutation relation via superpositions of quantum operations on thermal light fields

Details Experimental demonstration of bosonic commutation relation via superpositions of quantum operations on thermal light fields Experimental demonstration of bosonic commutation relation via superpositions of quantum operations on thermal light fields

2009-09-24

arxiv.org/abs/0909.4450v1

Physical Review Letters 103, 140406 (2009)

Physics

Quantum Physics

4 pages, 3 figures, to appear in Physical Review Letters

Scientific paper

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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