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Frequency up-conversion of an even coherent state
- Authors: Belinsky A.V.1, Singh R.1
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Affiliations:
- Lomonosov Moscow State University
- Issue: Vol 88, No 1 (2024)
- Pages: 40-42
- Section: Wave Phenomena: Physics and Applications
- URL: https://rjsvd.com/0367-6765/article/view/654781
- DOI: https://doi.org/10.31857/S0367676524010072
- EDN: https://elibrary.ru/SBBWLE
- ID: 654781
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Abstract
The problem of transferring the state of even coherent states from a low frequency to a high frequency is theoretically considered using a periodically-poled nonlinear crystal. With the help of the Wigner quasi-probability distribution function, a parallel implementation of two nonlinear processes is studied: parametric and sum frequency generation.
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About the authors
A. V. Belinsky
Lomonosov Moscow State University
Email: ranjit.singh@mail.ru
Faculty of Physics
Russian Federation, MoscowR. Singh
Lomonosov Moscow State University
Author for correspondence.
Email: ranjit.singh@mail.ru
Faculty of Physics
Russian Federation, MoscowReferences
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Fig. 1. Phase portrait of the mode state. The average number of photons in the mode is in a superposition of coherent states (Schrödinger cat) and is equal to at ξ = 0. From here on, the pumping of the mode is assumed to be inexhaustible.
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Fig. 2. Phase portrait of the mode state. The average number of photons in the mode is in a superposition of coherent states, and the mode is in a vacuum state. In this case, the reduced interaction length x = 0.
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4.
Fig. 3. Phase portrait of the mode state. The average number of photons in the mode is in a superposition of coherent states, and the mode is in a vacuum state. In this case, the reduced interaction length ξ = 1.2, and the coupling coefficient y = 0.9.
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