Quantum state engineering via coherent-state superpositions in traveling optical fields

Emese Molnar, P. Ádám, Gabor Mogyorosi, Matyas Mechler

Research output: Contribution to journalArticle

5 Citations (Scopus)


We propose two experimental schemes for producing coherent-state superpositions which approximate different nonclassical states conditionally in traveling optical fields. Although these setups are constructed of a small number of linear optical elements and homodyne measurements, they can be used to generate various photon number superpositions in which the number of constituent states can be higher than the number of measurements in the schemes. We determine numerically the parameters to achieve maximal fidelity of the preparation for a large variety of nonclassical states, such as amplitude squeezed states, binomial states, squeezed cat states, and various photon number superpositions. The proposed setups can generate these states with high fidelities and with success probabilities that can be sufficient for practical applications.

Original languageEnglish
Article number023818
JournalPhysical Review A
Issue number2
Publication statusPublished - Feb 12 2018

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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