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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sharypov A. V., He, Bing, Arkhipkin V. G., Myslivets S. A.
Заглавие : Quantum properties of parametric four-wave mixing in a Raman-type atomic system
Коллективы : Russian Foundation for Basic Research [15-02-03959]
Место публикации : Phys. Rev. A: American Physical Society, 2017. - Vol. 95, Is. 5. - Ст.053812. - ISSN 2469-9926, DOI 10.1103/PhysRevA.95.053812. - ISSN 2469-9934(eISSN)
Примечания : Cited References:23. - This work was supported by the Russian Foundation for Basic Research under Grant No. 15-02-03959.
Предметные рубрики: ENTANGLEMENT
Аннотация: We present a study of the quantum properties of two light fields used in parametric four-wave mixing in a Raman-type atomic system. The system realizes an effective Hamiltonian of beam-splitter-type coupling between the light fields, which allows one to control squeezing and amplitude distribution of the light fields, as well as realizing their entanglement. The scheme can be feasibly applied to engineer the quantum properties of two single-mode light fields in properly chosen input states.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bychek A. A., Maksimov D. N., Kolovsky A. R.
Заглавие : NOON state of Bose atoms in the double-well potential via an excited-state quantum phase transition
Коллективы : Russian Foundation for Basic Research, Government of Krasnoyarsk Territory; Krasnoyarsk Region Science and Technology Support Fund [16-42-240746]
Место публикации : Phys. Rev. A. - 2018. - Vol. 97, Is. 6. - Ст.063624. - ISSN 2469-9926, DOI 10.1103/PhysRevA.97.063624. - ISSN 2469-9934(eISSN)
Примечания : Cited References: 60. - The authors acknowledge financial support from the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory and the Krasnoyarsk Region Science and Technology Support Fund through Grant No. 16-42-240746.
Предметные рубрики: EINSTEIN CONDENSATE
SUPERPOSITION STATES
NOBEL LECTURE
ENTANGLEMENT
Аннотация: We suggest a simple scheme for creating a NOON state of repulsively interacting Bose atoms in the double-well potential. The protocol consists of two steps. First, by setting atom-atom interactions to zero, the system is driven to the upper excited state. Second, the interactions are slowly increased and, simultaneously, the interwell tunneling is decreased to zero. We analyze fidelity of the final state to the NOON state depending on the number of atoms, ramp rate, and fluctuations of the system parameters. It is shown that for a given fidelity the ramp rate scales algebraically with the number of atoms.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ikonnikov, Denis A., Vyunishev A. M.
Заглавие : Tailoring diffraction of light carrying orbital angular momenta
Коллективы : Russian Science FoundationRussian Science Foundation (RSF) [19-12-00203]
Место публикации : Opt. Lett. - 2020. - Vol. 45, Is. 14. - P.3905-3908. - ISSN 0146-9592, DOI 10.1364/OL.389019. - ISSN 1539-4794(eISSN)
Примечания : Cited References: 29. - Russian Science Foundation (19-12-00203).
Предметные рубрики: OPTICAL VORTICES
ENTANGLEMENT
TWEEZERS
Аннотация: A unified approach to controlling the diffraction of light carrying orbital angular momenta (OAM) is developed and experimentally verified in this Letter. This approach allows one to specify not only the number of diffraction maxima, their spatial frequencies, and the intensity distribution between them, but also the OAM in each maximum. It is verified that the approach can be used for structuring both single and multiple beams carrying OAMs. Simulations reveal phase singularities in structured beams. In addition, the approach makes it possible to shape the light in regular and irregular two-dimensional arrays with addressing the OAMs at each site. This approach offers new opportunities for singular optics.
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