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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Heller Y. I., Popov A. K.
Заглавие : Non-linear polarization resonances in a continuum
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz.: Международная книга, 1980. - Vol. 78, Is. 2. - P.506-515. - ISSN 0044-4510
Примечания : Cited References: 20
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Berman G. P., Zaslavsky G. M., Kolovsky A. R.
Заглавие : Interaction between quantum non-linear resonances
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz. - 1981. - Vol. 81, Is. 2. - P.506-516. - ISSN 0044-4510
Примечания : Cited References: 9
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Berman G. P., Zaslavsky G. M., Kolovsky A. R.
Заглавие : On the spectrum of the system of interacting quantum non-linear resonances
Место публикации : Phys. Lett. A. - 1982. - Vol. 87, Is. 4. - P.152-156. - ISSN 0375-9601, DOI 10.1016/0375-9601(82)90099-8
Примечания : Cited References: 10
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dimov S. S., Pavlov L. I., Stamenov K. V., Heller Y. I., Popov A. K.
Заглавие : Laser-induced non-linear resonances in the continuum at 3rd-harmonic generation in na vapor
Разночтения заглавия :авие SCOPUS: Laser-induced nonlinear resonances in the continuum at third-harmonic generation in Na vapor
Место публикации : Appl. Phys. B. - 1983. - Vol. 30, Is. 1. - P.35-40. - ISSN 0721-7269, DOI 10.1007/BF00692656
Примечания : Cited References: 18
Ключевые слова (''Своб.индексиров.''): 32.10vc--42.65-k--42.80qy--laser beams - effects--harmonic generation
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Berman G. P., Kolovsky A. R.
Заглавие : Structure and stability of the quasi-energy spectrum of 2 interacting quantum non-linear resonances
Место публикации : Phys. Lett. A. - 1983. - Vol. 95, Is. 1. - P.15-18. - ISSN 0375-9601, DOI 10.1016/0375-9601(83)90768-5
Примечания : Cited References: 5
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Berman G. P., Kolovsky A. R.
Заглавие : Renormalization method for the quantum system of interacting resonances
Место публикации : Phys. Lett. A: ELSEVIER SCIENCE BV, 1987. - Vol. 125, Is. 4. - P188-192. - ISSN 0375-9601, DOI 10.1016/0375-9601(87)90095-8
Примечания : Cited References: 8
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : SHAPIRO V. E.
Заглавие : COMBINATION RESONANCES OF VORTICAL TYPE
Место публикации : Phys. Lett. A: ELSEVIER SCIENCE BV, 1988. - Vol. 129, Is. 1. - P62-66. - ISSN 0375-9601, DOI 10.1016/0375-9601(88)90475-6
Примечания : Cited References: 4
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Berman G. P., Kolovskii A. R.
Заглавие : Quantum chaos in interactions of multilevel quantum-systems with a coherent radiation-field
Место публикации : Uspekhi Fiz. Nauk. - 1992. - Vol. 162, Is. 4. - P.95-141. - ISSN 0042-1294
Примечания : Cited References: 36
Предметные рубрики: QUASIENERGY FUNCTIONS
RESONANCES
BEHAVIOR
OVERLAP
Аннотация: The paper is short review of the papers devoted to the dynamics of the multilevel quantum systems affected by the external periodic field. The main attention is paid to the phenomenon of the quantum nonlinear resonance and the interaction of the two quantum nonlinear resonances, when the dynamics of the system is chaotic in the classical limit. The paper also contains the analysis of some physical systems where these phenomena take place. 30 figs. 37 refs.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Persson E., Pichugin K., Rotter I., Seba P.
Заглавие : Interfering resonances in a quantum billiard
Место публикации : Phys. Rev. E: AMERICAN PHYSICAL SOC, 1998. - Vol. 58, Is. 6. - P8001-8004. - ISSN 1063-651X, DOI 10.1103/PhysRevE.58.8001
Примечания : Cited References: 14
Предметные рубрики: MATRIX
POLES
Аннотация: We present a method for numerically obtaining the positions, widths, and wave functions of resonance states in a two-dimensional billiard connected to a waveguide. For a rectangular billiard, we study the dynamics of three resonance poles lying separated from the other ones. As a function of increasing coupling strength between the waveguide and the billiard two of the states become trapped while the width of the third one continues to increase for all coupling strengths. This behavior of the resonance poles is reflected in the time delay function, which can be studied experimentally. [S1063-651X(98)14112-0].
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Baev A. S., Popov A. K.
Заглавие : Sub-Doppler absorption resonances induced by strong radiation
Место публикации : JETP Letters. - 1998. - Vol. 67, Is. 12. - P.1018-1023. - ISSN 0021-3640, DOI 10.1134/1.567785
Примечания : Cited References: 19
Предметные рубрики: INDUCED TRANSPARENCY
Аннотация: New possibilities are demonstrated for eliminating uncompensated Doppler broadening in different types of nonlinear optical processes by means of atomic coherence effects in strong electromagnetic fields are demonstrated. (C) 1998 American Institute of Physics.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gluck M., Kolovsky A. R., Korsch H. J.
Заглавие : Perturbation theory for Wannier resonance states affected by ac field
Место публикации : Phys. Lett. A. - 1999. - Vol. 258, Is. 4-6. - P.383-393. - ISSN 0375-9601, DOI 10.1016/S0375-9601(99)00360-6
Примечания : Cited References: 15
Предметные рубрики: DYNAMIC LOCALIZATION
DC
PARTICLE
Ключевые слова (''Своб.индексиров.''): wannier states--quantum resonances--quasienergy states
Аннотация: The paper studies the effect of a weak ac field on the Wannier states, which are known to be the metastable states of a quantum particle in a periodic potential subject to a static field, Provided that the photon energy exactly matches the spacing of the Wannier-Stark ladder the system complex quasienergy spectrum is obtained. it is shown, in particular, thar a weak ac field can increase the lifetime of the Wannier states by several orders of magnitude. The analytical results of a perturbation theoretical analysis are compared against the exact numerical calculation of the system spectrum. (C) 1999 Elsevier Science B.V. All rights reserved.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gluck M., Kolovsky A. R., Korsch H. J.
Заглавие : Fractal stabilization of Wannier-Stark resonances
Место публикации : Europhys. Lett. - 2000. - Vol. 51, Is. 3. - P.255-260. - ISSN 0295-5075, DOI 10.1209/epl/i2000-00345-2
Примечания : Cited References: 17
Предметные рубрики: BLOCH PARTICLE
FIELDS
STATISTICS
QUANTUM
SYSTEMS
AC
DC
ELECTRONS
Аннотация: The quasienergy spectrum of a Bloch electron affected by dc-ac fields is known to have a fractal structure as a function of the so-called electric matching ratio, which is the ratio of the ac field frequency and the Bloch frequency. This paper studies a manifestation of the fractal nature of the spectrum in the system "atom in a standing laser wave", which is a quantum-optical realization of a Bloch electron. It is shown that for an appropriate choice of the system parameters the atomic survival probability (a quantity measured in laboratory experiments) also develops a fractal structure as a function of the electric matching ratio. Numerical simulations under classically chaotic scattering conditions show good agreement with theoretical predictions based on random matrix theory.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Alekseev K. N., Cannon E. H., Kusmartsev F. V., Campbell D. K.
Заглавие : Fractional and unquantized dc voltage generation in THz-driven semiconductor superlattices
Место публикации : Europhys. Lett. - 2001. - Vol. 56, Is. 6. - P.842-848. - ISSN 0295-5075, DOI 10.1209/epl/i2001-00596-9
Примечания : Cited References: 40
Предметные рубрики: BLOCH OSCILLATIONS
SYMMETRY-BREAKING
ELECTRIC-FIELD
FREQUENCY
TRANSPORT
CHAOS
RESONANCES
RADIATION
Аннотация: We consider the spontaneous creation of a dc voltage across a strongly coupled semiconductor superlattice subjected to THz radiation. We show that the dc voltage may be approximately proportional either to an integer or to a half-integer multiple of the frequency of the applied ac field, depending on the ratio of the characteristic scattering rates of conducting electrons. For the case of an ac field frequency less than the characteristic scattering rates, we demonstrate the generation of an unquantized dc voltage.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Nazmitdinov R. G., Pichugin K. N., Rotter I., Seba P.
Заглавие : Conductance of open quantum billiards and classical trajectories
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2002. - Vol. 66, Is. 8. - Ст.85322. - ISSN 1098-0121, DOI 10.1103/PhysRevB.66.085322
Примечания : Cited References: 46
Предметные рубрики: BALLISTIC MICROSTRUCTURES
CHAOTIC SCATTERING
FLUCTUATIONS
DOTS
TRANSPORT
DYNAMICS
STATES
MAGNETOTRANSPORT
STATISTICS
RESONANCES
Аннотация: We analyze the transport phenomena of two-dimensional quantum billiards with convex boundary of different shape. The quantum mechanical analysis is performed by means of the poles of the S matrix while the classical analysis is based on the motion of a free particle inside the cavity along trajectories with a different number of bounces at the boundary. The value of the conductance depends on the manner in which the leads are attached to the cavity. The Fourier transform of the transmission amplitudes is compared with the length of the classical paths. There is good agreement between classical and quantum mechanical results when the conductance is achieved mainly by special short-lived states such as whispering gallery modes and bouncing ball modes. In these cases, also the localization of the wave functions agrees with the picture of the classical paths. The S matrix is calculated classically and compared with the transmission coefficients of the quantum mechanical calculations for five modes in each lead. The number of modes coupled to the special states is effectively reduced.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Exner P., Pichugin K. N., Sadreev A. F.
Заглавие : Multiple bound states in scissor-shaped waveguides
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2002. - Vol. 66, Is. 15. - Ст.155109. - ISSN 1098-0121, DOI 10.1103/PhysRevB.66.155109
Примечания : Cited References: 32
Предметные рубрики: QUANTUM WAVE-GUIDES
HELMHOLTZ EQUATION
RADIATION-FIELD
HALL RESISTANCE
RESONANCES
WIRES
PROPAGATION
MODES
Аннотация: We study bound states of the two-dimensional Helmholtz equations with Dirichlet boundary conditions in an open geometry given by two straight leads of the same width which cross at an angle theta. Such a four-terminal junction with a tunable theta can realized experimentally if a right-angle structure is filled by a ferrite. It is known that for theta=90degrees there is one proper bound state and one eigenvalue embedded in the continuum. We show that the number of eigenvalues becomes larger with increasing asymmetry and the bound-state energies are increasing as functions of theta in the interval (0,90degrees). Moreover, states which are sufficiently strongly bound exist in pairs with a small energy difference and opposite parities. Finally, we discuss how the bound states transform with increasing theta into quasibound states with a complex wave vector.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gluck M., Kolovsky A. R., Korsch H. J., Zimmer F.
Заглавие : Wannier-Stark resonances in semiconductor superlattices
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2002. - Vol. 65, Is. 11. - Ст.115302. - ISSN 1098-0121, DOI 10.1103/PhysRevB.65.115302
Примечания : Cited References: 22
Предметные рубрики: ELECTRIC-FIELD
STATES
LADDERS
BREAKDOWN
BLOCH
LOCALIZATION
Аннотация: Wannier-Stark states for semiconductor superlattices in strong static fields, where the interband Landau-Zener tunneling cannot be neglected, are rigorously calculated. The lifetime of these metastable states was found to show multiscale oscillations as a function of the static field, which is explained by an interaction with above-barrier resonances. An equation, expressing the absorption spectrum of semiconductor superlattices in terms of the resonance Wannier-Stark states, is obtained and used to calculate the absorption spectrum in the region of high static fields.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gluck M., Kolovsky A. R., Korsch H. J.
Заглавие : Wannier-Stark resonances in optical and semiconductor superlattices
Место публикации : Phys. Rep.-Rev. Sec. Phys. Lett.: ELSEVIER SCIENCE BV, 2002. - Vol. 366, Is. 3. - P103-182. - ISSN 0370-1573, DOI 10.1016/S0370-1573(02)00142-4
Примечания : Cited References: 234
Предметные рубрики: UNIFORM ELECTRIC-FIELD
QUANTUM CHAOTIC SCATTERING
FRANZ-KELDYSH OSCILLATIONS
METAL-INSULATOR-TRANSITION
ALTERNATING SITE ENERGIES
GAAS-ALAS SUPERLATTICES
RANDOM UNITARY MATRICES
WAVE-GUIDE ARRAYS
BLOCH OSCILLATIONS
PERTURBATION-THEORY
Ключевые слова (''Своб.индексиров.''): wannier-stark resonances--semiconductor superlattices--optical lattices--resonance statistics--quantum chaos--optical lattices--quantum chaos--resonances statistics--semiconductor superlattices--wannier-stark resonances
Аннотация: In this work, we discuss the resonance states of a quantum particle in a periodic potential plus a static force. Originally, this problem was formulated for a crystal electron subject to a static electric field and it is nowadays known as the Wannier-Stark problem. We describe a novel approach to the Wannier-Stark problem developed in recent years. This approach allows to compute the complex energy spectrum of a Wannier-Stark system as the poles of a rigorously constructed scattering matrix and solves the Wannier-Stark problem without any approximation. The suggested method is very efficient from the numerical point of view and has proven to be a powerful analytic tool for Wannier-Stark resonances appearing in different physical systems such as optical lattices or semiconductor superlattices. (C) 2002 Elsevier Science B.V. All rights reserved.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mendez-Bermudez J. A., Luna-Acosta G. A., Seba P., Pichugin K. N.
Заглавие : Chaotic waveguide-based resonators for microlasers
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2003. - Vol. 67, Is. 16. - Ст.161104. - ISSN 1098-0121, DOI 10.1103/PhysRevB.67.161104
Примечания : Cited References: 33
Предметные рубрики: QUANTUM-CLASSICAL CORRESPONDENCE
MORPHOLOGY-DEPENDENT RESONANCES
DIRECTIONAL EMISSION
OPTICAL CAVITIES
MICRODISK LASERS
WAVE CHAOS
DROPLETS
PRECESSION
BILLIARDS
STATES
Аннотация: We propose the construction of highly directional emission microlasers using two-dimensional high-index semiconductor waveguides as open resonators. The prototype waveguide is formed by two collinear leads connected to a cavity of certain shape. The proposed lasing mechanism requires that the shape of the cavity yield mixed chaotic ray dynamics so as to have the approplate (phase space) resonance islands. These islands allow, via Heisenberg's uncertainty principle, the appearance of quasibound states (QBSs) which, in turn, propitiate the lasing mechanism. The energy values of the QBSs are found through the solution of the Helmholtz equation. We use classical ray dynamics to predict the direction and intensity of the lasing produced by such open resonators for typical values of the index of refraction.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kolovsky A. R., Korsch H. J.
Заглавие : Quantum diffusion in a biased kicked Harper system
Место публикации : Phys. Rev. E: AMER PHYSICAL SOC, 2003. - Vol. 68, Is. 4. - Ст.46202. - ISSN 1539-3755, DOI 10.1103/PhysRevE.68.046202
Примечания : Cited References: 17
Предметные рубрики: WANNIER-STARK RESONANCES
SPECTRAL STATISTICS
CLASSICAL DIFFUSION
CHAOTIC DIFFUSION
COORDINATE
MODEL
Аннотация: Quantum diffusion in a biased kicked Harper system, modeling field-induced transport in superlattices, is studied for fully chaotic dynamics of the underlying classical system. Under these conditions, the classical transport is diffusive whereas the quantum diffusion can be either enhanced or suppressed for commensurable or incommensurable ratio of the Bloch period to the driving period, respectively. The quantum transport properties are related to the statistical properties of the quasienergy spectra as described by random matrix theory.
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20.

Вид документа : Однотомное издание
Шифр издания :
Заглавие : Euro-asian symposium "Trends in magnetism" (EASTMAG-2004) : Abstract book
Выходные данные : Krasnoyarsk, 2004
Колич.характеристики :418 с
Коллективы : Российская академия наук, Сибирское отделение РАН, Институт физики им. Л.В. Киренского Сибирского отделения РАН, Красноярский государственный университет, Красноярский государственный технический университет, Институт физики металлов Уральского отделения РАН, Научный совет по физике конденсированных сред РАН, Научный совет РАН по физике низких температур, Красноярский научный центр Сибирского отделения РАН, Euro-asian symposium "Trends in magnetism" (2; 2004 ; Aug. 24-27; Krasnoyarsk), "Trends in magnetism", Euro-Asian Symposium (2; 2004 ; Aug. 24-27; Krasnoyarsk)
Примечания : Bibliogr. at the end of the articles - Auth. ind. :
Содержание : Fundamental magnetic properties ; Transport phenomena and spin electronics ; Magnetism and strongly correleted electron systems ; Spin glasses, disordered magnetic systems ; Dynamics of spin systems and magnetic resonances ; Magnetooptics and X-ray magnetooptics ; Magnetic mechanism of the superconductivity ; Domain structure and magnetization processes ; Thin magnetic films and multilayers ; Magnetic particles and nanocrystalline materials ; Molecular magnetism ; Magnetic storage/memory and applications
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