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Quantum properties of parametric four-wave mixing in a Raman-type atomic system / A. V. Sharypov [et al.] // Phys. Rev. A. - 2017. - Vol. 95, Is. 5. - Ст. 053812, DOI 10.1103/PhysRevA.95.053812. - Cited References:23. - This work was supported by the Russian Foundation for Basic Research under Grant No. 15-02-03959. . - ISSN 2469-9926. - ISSN 2469-9934

РУБ Optics + Physics, Atomic, Molecular & Chemical
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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Держатели документа:
Kirensky Inst Phys, 50 Akademgorodok, Krasnoyarsk 660036, Russia.
Sci Ctr Newton Pk, 1 Mira, Krasnoyarsk 660049, Russia.
Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA.
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660079, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.

Доп.точки доступа:
Sharypov, A. V.; Шарыпов, Антон Валерьевич; He, Bing; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Russian Foundation for Basic Research [15-02-03959]
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Bychek, A. A.
NOON state of Bose atoms in the double-well potential via an excited-state quantum phase transition / A. A. Bychek, D. N. Maksimov, A. R. Kolovsky // Phys. Rev. A. - 2018. - Vol. 97, Is. 6. - Ст. 063624, DOI 10.1103/PhysRevA.97.063624. - 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. . - ISSN 2469-9926. - ISSN 2469-9934

РУБ Optics + Physics, Atomic, Molecular & Chemical
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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Держатели документа:
RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.

Доп.точки доступа:
Maksimov, D. N.; Максимов, Дмитрий Николаевич; Kolovsky, A. R.; Коловский, Андрей Радиевич; Бычек, Анна Андреевна; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory; Krasnoyarsk Region Science and Technology Support Fund [16-42-240746]
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    Ikonnikov, Denis A..
    Tailoring diffraction of light carrying orbital angular momenta / D. A. Ikonnikov, A. M. Vyunishev // Opt. Lett. - 2020. - Vol. 45, Is. 14. - P. 3905-3908, DOI 10.1364/OL.389019. - Cited References: 29. - Russian Science Foundation (19-12-00203). . - ISSN 0146-9592. - ISSN 1539-4794
   Перевод заглавия: Управление дифракцией пучков света с орбитальным угловым моментом

РУБ Optics
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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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Иконников, Денис Андреевич; Russian Science FoundationRussian Science Foundation (RSF) [19-12-00203]
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