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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : LUKINYKH V. F., MYSLIVETS S. A., SLABKO V. V.
Заглавие : IMPULSE LASER SYSTEM ON GLASS WITH NEODYMIUM FOR THE STUDY OF NONLINEAR OPTICAL PHENOMENA IN GASES
Место публикации : Zhurnal Tek. Fiz.: MEZHDUNARODNAYA KNIGA, 1984. - Vol. 54, Is. 5. - P879-882. - ISSN 0044-4642
Примечания : Cited References: 7
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : KRASNOV I. V.
Заглавие : STRAIGHTENING EFFECT OF RADIATION POWER AND LIGHT-INDUCED PHENOMENA OF TRANSFER IN RESONANCE GASES
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz.: MEZHDUNARODNAYA KNIGA, 1995. - Vol. 107, Is. 4. - P1135-1152. - ISSN 0044-4510
Примечания : Cited References: 18
Предметные рубрики: FORCE
ATOMS
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Sadreev A. F.
Заглавие : Vortex phase diagram of F=1 spinor Bose-Einstein condensates
Место публикации : Phys. Rev. Lett.: AMERICAN PHYSICAL SOC, 2003. - Vol. 90, Is. 20. - Ст.200401. - ISSN 0031-9007, DOI 10.1103/PhysRevLett.90.200401
Примечания : Cited References: 15
Предметные рубрики: ATOMS
CREATION
GASES
Аннотация: We have calculated the F=1 ground state of a spinor Bose-Einstein condensate trapped harmonic potential with an applied Ioffe-Pitchard magnetic field. The vortex phase diagram is found in the plane spanned by perpendicular and longitudinal magnetic fields. The ferromagnetic condensate has two vortex phases which differ by winding number in the spinor components. The two vortices for the F-z=-1 antiferromagnetic condensate are separated in space. Moreover, we considered an average local spin \[(S) over right arrow]\ to testify to what extent it is parallel to magnetic field (the nonadiabatic effects). We have shown that the effects are important at vortex cores.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vasil'ev E. N., Nesterov D. A.
Заглавие : Numerical simulation of interaction between arc discharge and transverse magnetic field
Место публикации : High Temp.: SPRINGER, 2007. - Vol. 45, Is. 2. - P137-142. - ISSN 0018-151X, DOI 10.1134/S0018151X07020010
Примечания : Cited References: 12
Ключевые слова (''Своб.индексиров.''): flow of gases--gas dynamics--mathematical models--molecular interactions--velocity distribution--arc discharges--discharge column--magnetogasdynamics--magnetic fields
Аннотация: An unsteady-state three-dimensional numerical model of radiation magnetogasdynamics is used to calculate the structure of an arc discharae which interacts with an external transverse maonetic field and transverse gas flow. The velocity field and the distribution of gas temperature obtained as a result of calculations agree with experimental data. The difference between the calculated and measured values of temperature in the discharge column is approximately 5%.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Kolovsky A.R., Korsch H.J.
Заглавие : Bloch Dynamics of Interacting Cold Atoms
Коллективы : International Seminar and Workshop on Nonlinear Phenomena in Degenerate Quantum Gases
Место публикации : International Seminar and Workshop on Nonlinear Phenomena in Degenerate Quantum Gases, Ourense, Spain April: Conference Abstracts. - 2010. - С. 46
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Maksimov D. N., Kolovsky A. R.
Заглавие : Escape dynamics of a Bose-Hubbard dimer out of a trap
Коллективы : Russian Academy of Sciences [29]
Место публикации : Phys. Rev. A: American Physical Society, 2014. - Vol. 89, Is. 6. - Ст.063612. - ISSN 1050-2947, DOI 10.1103/PhysRevA.89.063612. - ISSN 1094-1622
Примечания : Cited References: 53. - The authors acknowledge financial support of Russian Academy of Sciences through the SB RAS integration project No. 29 Dynamics of Atomic Bose-Einstein Condensates in Optical Lattices.
Предметные рубрики: ULTRACOLD GASES
OPTICAL LATTICE
QUANTUM
DECAY
Аннотация: We consider a potential scattering of a Bose-Hubbard dimer in a one-dimensional optical lattice. A numerical approach based on an effective non-Hermitian Hamiltonian has been developed for solving the scattering problem. It allows us to compute the tunneling and dissociation probabilities for an arbitrary shape of the potential barrier and an arbitrary kinetic energy of the dimer. The developed approach has been used to address the problem of two-particle decay out of a trap. In particular, it is shown that the presence of dissociation channels significantly decreases the nonescape probability due to single-particle escape to those channels.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Karpov I. V., Ushakov A. V., Lepeshev A. A., Fedorov L. Y., Dorozhkina E. A., Karpova O. N., Shaikhadinov A. A., Demin V. G., Bachurina E. P., Lichargin D. V., Abkaryan A. K., Zeer G. M., Zharkov S. M.
Заглавие : The investigation of the influence of oxygen concentration in the gas mixture on nanodispersed oxides synthesis
Коллективы : International Scientific Conference Reshetnev Readings
Место публикации : IOP Conf. Ser.: Mater. Sci. Eng. - 2017. - Vol. 255, Is. 1. - Ст.012008. - , DOI 10.1088/1757-899X/255/1/012008
Примечания : Cited References: 25
Ключевые слова (''Своб.индексиров.''): cathodes--electrodes--particle size--vacuum applications--average particle size--cathode process--discharge gaps--energy of ions--influence of oxygen--low pressure arc--oxides synthesis--superheated gas--gases
Аннотация: Thermal effects in cathode space of low-pressure arc discharge, which contribute to the synthesis of nanopowders with an average particle size of less than 10 nm, are considered. One of the most important parameters, characterizing the cathode processes of vacuum arc, is a voltage drop across the discharge gap. All the gases demonstrate a decrease of a voltage drop across the discharge gap under the condition ofincreasing the gas pressure in the range of p = 10-3 - 1 Pa. Dissipation of energy of ions and electrons on gas molecules causes abrupt heating of the gas. Heat, coming from gas plasma, has a significant impact on evaporating material of a cathode. It can be assumed that a microdrop fraction, formed as a result of a cathode spraying in a liquid phase, will further evaporate in a superheated gas.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kudashkin K., Nikolaev S. V., Ovchinnikov S. G.
Заглавие : Spectral properties of the Bose-Hubbard model within the cluster perturbation theory in X-operators representation
Коллективы : RFBR [16-02-00098, 16-42-243048, 16-42-240511, 16-42-240769]; Government of Krasnoyarsk Territory; Russian President Grant [NSh-7559.2016.2]
Место публикации : J. Supercond. Nov. Magn.: Springer, 2017. - Vol. 30, Is. 1. - P.103-107. - ISSN 1557-1939, DOI 10.1007/s10948-016-3781-y. - ISSN 1557-1947(eISSN)
Примечания : Cited References:16. - This work was supported by RFBR grant 16-02-00098, Government of Krasnoyarsk Territory and RFBR according to the research projects 16-42-243048, 16-42-240511, and 16-42-240769, and the Russian President Grant NSh-7559.2016.2.
Предметные рубрики: TRANSITION
SUPERFLUID
INSULATOR
ATOMS
Ключевые слова (''Своб.индексиров.''): bose-hubbard model--ultracold gases--cluster perturbation theory--density of states--spectral properties
Аннотация: We study the two-dimensional ultracold Bose gas in optical lattice. We use cluster perturbation theory based on Hubbard X-operators to calculate the spectral function and phase diagram of Bose-Hubbard model which is minimal model to describe behavior of ultracold gases in optical lattices. We have analyzed spectral properties of spinless bosons in a square lattice taking into account the short-range correlation.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Liu, Ji-Cai, Miron, Catalin, Ågren, Hans, Polyutov S. P., Gel'mukhanov F.
Заглавие : Resonant X-ray second-harmonic generation in atomic gases
Место публикации : Phys. Rev. A. - 2019. - Vol. 100, Is. 6. - Ст.063403. - ISSN 2469-9926 (ISSN), DOI 10.1103/PhysRevA.100.063403. - ISSN 2469-9934 (eISSN)
Примечания : Cited References: 29. - The research leading to these results has received funding from a public grant from the Laboratoire d’Excellence Physics Atoms Light Matter (LabEx PALM), the Laboratoire d’Excellence MiChEm, and the Swedish Research Council (VR). J.-C.L. acknowledges support from the National Science Foundation of China under Grants No. 11574082 and No. 11974108, and the Fundamental Research Funds for the
Аннотация: We explore the X-ray second harmonic generation process induced by resonant two-photon absorption in systems with inversion symmetry. We show that this process becomes allowed in the X-ray region due to non-dipole contributions. It is found that while a plane wave pump field generates only a longitudinal second harmonic field, a Gaussian pump beam creates also a radially polarized transverse second harmonic field which is stronger than the longitudinal one. Contrary to the longitudinal component, the transverse second harmonic field with zero intensity on the axis of the pump beam can run in free space. Our theory is applied to Ar and Ne atomic vapours and predicts an energy conversion efficiency of X-ray second harmonic generation of 3.2×10−11 and 1.3×10−12, respectively.
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