Conditional generation of arbitrary single-mode quantum states of light by repeated photon subtractions
- 23 September 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 72 (3), 033822
- https://doi.org/10.1103/physreva.72.033822
Abstract
We propose a scheme for the conditional generation of arbitrary finite superpositions of Fock states in a single mode of a traveling optical field. The setup requires a source of squeezed vacuum states, beam splitters, strong coherent beams, photodetectors with single-photon sensitivity, and a final squeezer. If we want to generate a squeezed superposition of Fock states, which is sufficient in several applications, then the last squeezer is not even needed. The thrust of this method is that it achieves a high fidelity without requiring photodetectors with a high efficiency or a single-photon resolution. The possibility to improve its scaling by using a quantum memory is also discussed.Keywords
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