Труды сотрудников института физики

/ J. . Isohatala [et al.] // Phys. Rev. E. - 2005. - Vol. 71, Is. 6. - Ст. 66206, DOI 10.1103/PhysRevE.71.066206. - Cited References: 37 . - ISSN 1539-3755РУБ Physics, Fluids & Plasmas + Physics, Mathematical

Аннотация: We examine the conditions for appearance of a symmetry breaking bifurcation in damped and periodically driven pendulums in the case of strong damping. We show that symmetry breaking, unlike other nonlinear phenomena, can exist at high dissipation. We prove that symmetry breaking phases exist between phases of symmetric normal and symmetric inverted oscillations. We find that symmetry broken solutions occupy a smaller region of the pendulum's parameter space in comparison to the statements made in earlier considerations [McDonald and Plischke, Phys. Rev. B 27, 201 (1983)]. Our research on symmetry breaking in a strongly damped pendulum is relevant to an understanding of the phenomena of dynamic symmetry breaking and rectification in pure ac driven semiconductor superlattices.

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Держатели документа:
Univ Oulu, Dept Phys Sci, FIN-90014 Oulu, Finland
LV Kirenskii Inst Phys, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
ИФ СО РАН
Department of Physical Sciences, P. O. Box 3000, Oulu FIN-90014, Finland
Theory of Nonlinear Processes Laboratory, Kirensky Institute of Physics, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Isohatala, J.; Alekseev, K. N.; Kurki, L. T.; Pietilainen, P.

/ K. N. Alekseev [et al.] // Europhys. Lett. - 2004. - Vol. 68, Is. 5. - P. 753-753, DOI 10.1209/epl/i2004-10312-5. - Cited References: 1 . - ISSN 0295-5075РУБ Physics, Multidisciplinary


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Держатели документа:
Univ Oulu, Dept Phys Sci, Div Theoret Phys, FIN-90014 Oulu, Finland
LV Kirenskii Inst Phys, Theory Nonlinear Proc Lab, Krasnoyarsk 66036, Russia
Univ Notre Dame, Dept Elect Engn, Notre Dame, IN 46556 USA
Loughborough Univ Technol, Dept Phys, Loughborough LE11 3TU, Leics, England
Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA
Boston Univ, Dept Phys, Boston, MA 02215 USA
ИФ СО РАН
Division of Theoretical Physics, Department of Physical Sciences, University of Oulu, Finland
Theor. of Nonlinear Processes Lab., Kirensky Institute of Physics, Krasnoyarsk 66036, Russian Federation
Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN 46556, United States
Department of Physics, Loughborough University, Loughborough, LE11 3TU, United Kingdom
Department of Electrical Engineering, Boston University, Boston, MA 02215, United States
Departmont of Physical Sciences, University of Oulu, FIN-90014, Finland
Доп.точки доступа:
Alekseev, K. N.; Cannon, E. H.; Kusmartsev, F. V.; Campbell, D. K.

/ K. N. Alekseev, F. V. Kusmartsev // Phys. Lett. A. - 2002. - Vol. 305, Is. 5. - P. 281-288, DOI 10.1016/S0375-9601(02)01420-2. - Cited References: 60 . - ISSN 0375-9601РУБ Physics, Multidisciplinary

Аннотация: We describe a limiting case when nonlinear dynamics of an ac-driven semiconductor superlattice in the miniband transport regime is governed by a periodically forced and damped pendulum equations. We find analytically the conditions for a transition to chaos. With increasing temperature the chaos disappears. We also discuss fractional do voltage states in a superlattice originating from phase-locked states of the pendulum. (C) 2002 Elsevier Science B.V. All rights reserved.

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Держатели документа:
Oulu Univ, Dept Phys Sci, FIN-90014 Oulu, Finland
LV Kirenskii Inst Phys, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
Loughborough Univ Technol, Dept Phys, Loughborough LE11 3TU, Leics, England
ИФ СО РАН
Department of Physical Sciences, University of Oulu, P.O. Box 3000, FIN-90014, Oulu, Finland
Theory of Nonlin. Proc. Laboratory, Kirensky Institute of Physics, Krasnoyarsk 660036, Russian Federation
Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom

Доп.точки доступа:
Kusmartsev, F. V.

/ K. N. Alekseev, A. V. Ponomarev // JETP Letters. - 2002. - Vol. 75, Is. 4. - P. 174-178, DOI 10.1134/1.1475717. - Cited References: 34 . - ISSN 0021-3640РУБ Physics, Multidisciplinary

Аннотация: We examine the spatial evolution of lightwaves in a nonlinear photonic crystal with a quadratic nonlinearity, when a second harmonic and a sum-frequency generation are simultaneously quasi-phase-matched. We find the conditions for a transition to Hamiltonian chaos for different amplitudes of lightwaves at the crystal boundary. (C) 2002 MAIK "Nauka/ Interperiodica".

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Держатели документа:
Univ Oulu, Dept Phys Sci, FIN-90014 Oulu, Finland
Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
Russian Acad Sci, LV Kirensky Phys Inst, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Dept Phys, Krasnoyarsk 660041, Russia
ИФ СО РАН
Max-Planck-Inst. Physik Komplexer S., D-01187 Dresden, Germany
Theor. of Nonlinear Processes Lab., Kirensky Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Department of Physics, Krasnoyarsk State University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Ponomarev, A. V.

/ K. N. Alekseev [et al.] // Europhys. Lett. - 2001. - Vol. 56, Is. 6. - P. 842-848, DOI 10.1209/epl/i2001-00596-9. - Cited References: 40 . - ISSN 0295-5075РУБ Physics, Multidisciplinary

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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Держатели документа:
Univ Oulu, Dept Phys Sci, Div Theoret Phys, FIN-90014 Oulu, Finland
LV Kirenskii Inst Phys, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
Univ Notre Dame, Dept Elect Engn, Notre Dame, IN 46556 USA
Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England
Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA
Boston Univ, Dept Phys, Boston, MA 02215 USA
ИФ СО РАН
Theor. of Nonlinear Processes Lab., Kirensky Institute of Physics, Krasnoyarsk 660036, Russian Federation
Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN 46556, United States
Department of Physics, Loughborough University, Loughborough, LE11 3TU, United Kingdom
Depts. of Elec. and Comp. E., Boston University, Boston, MA 02215, United States

Доп.точки доступа:
Alekseev, K. N.; Cannon, E. H.; Kusmartsev, F. V.; Campbell, D. K.

/ E. H. Cannon [et al.] // Superlattices Microstruct. - 2000. - Vol. 27, Is. 5-6. - P. 495-498, DOI 10.1006/spmi.2000.0866. - Cited References: 7 . - ISSN 0749-6036РУБ Physics, Condensed Matter

Аннотация: We discuss electron transport through a semiconductor superlattice subject to an electric field parallel to, and a magnetic field perpendicular to, the growth axis using a semiclassical balance equation model. We find that the current-voltage characteristic becomes multistable in a large magnetic field; furthermore, hot electrons display novel features in their current-voltage characteristic, including absolute negative conductivity and a spontaneously generated de current at zero bias. (C) 2000 Academic Press.

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Держатели документа:
Univ Illinois, Dept Phys, Urbana, IL 61801 USA
Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England
LV Kirensky Phys Inst, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
ИФ СО РАН
Department of Physics, Univ. Illinois at Urbana-Champaign, 1110 W. Green St., Urbana, IL 61801, United States
Department of Physics, Loughborough University, Loughborough, LE11 3TU, United Kingdom
Theor. of Nonlinear Processes Lab., Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Cannon, E. H.; Campbell, D. K.; Kusmartsev, F. V.; Alekseev, K. N.; International Workshop on Surgaces and Interfaces in Mesoscopic Devices(3 ; 1999 ; Dec. ; 6-10 ; Maui, Hawaii)

/ K. N. Alekseev, N. V. Alekseeva, J. . Perina // J. Exp. Theor. Phys. - 2000. - Vol. 90, Is. 4. - P. 592-599, DOI 10.1134/1.559142. - Cited References: 32 . - ISSN 1063-7761РУБ Physics, Multidisciplinary

Аннотация: We develop a semiclassical method to determine the nonlinear dynamics of dissipative quantum optical systems in the limit of large number of photons N; it is based on the 1/N-expansion and the quantum-classical correspondence. The method is used to tackle two problems: the study of the dynamics of nonclassical state generation in higher order anharmonic dissipative oscillators and the establishment of the difference between the quantum and classical dynamics of the second-harmonic generation in a self-pulsing regime. In addressing the first problem, we obtain an explicit time dependence of the squeezing and the Fano factor for an arbitrary degree of anharmonism in the short-time approximation. For the second problem, we analytically find a characteristic time scale at which the quantum dynamics differs insignificantly from the classical one. (C) 2000 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Palacky Univ, Dept Opt, Olomouc 77207, Czech Republic
Palacky Univ, Joint Lab Opt, Olomouc 77207, Czech Republic
ИФ СО РАН

Доп.точки доступа:
Alekseeva, N. V.; Perina, J.

/ K. N. Alekseev, J. . Perina // Phys. Scr. - 2000. - Vol. 61, Is. 1. - P. 7-16, DOI 10.1238/Physica.Regular.061a00007. - Cited References: 38 . - ISSN 0281-1847РУБ Physics, Multidisciplinary

Аннотация: We develop a method for the determination of the dynamics of dissipative quantum systems in the limit of large number of quanta N, based on the 1/N-expansion of Heidmann et al. [Opt. Commun. 54, 189 (1985)] and the quantum-classical correspondence. Using this method, we End analytically the dynamics of nonclassical states generation in the higher-order anharmonic dissipative oscillators for an arbitrary temperature of a reservoir. We show that the quantum correction to the classical motion increases with time quadratically up to some maximal value, which is dependent on the degree of nonlinearity and a damping constant, and then it decreases. Similarities and differences with the corresponding behavior of the quantum corrections to the classical motion in the Hamiltonian chaotic systems are discussed. We also compare our results obtained for some limiting cases with the results obtained by using other semiclassical tools and discuss the conditions for validity of our approach.

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Держатели документа:
Palacky Univ, Dept Opt, Olomouc 77207, Czech Republic
Palacky Univ, Joint Lab Opt, Olomouc 77207, Czech Republic
Acad Sci Czech Republ, Dept Opt, Olomouc, Czech Republic
Acad Sci Czech Republ, Joint Lab Opt, Olomouc 77207, Czech Republic
Russian Acad Sci, Theory Nonlinear Proc Lab, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Perina, J.

/ K. N. Alekseev, M. V. Erementchouk, F. V. Kusmartsev // Europhys. Lett. - 1999. - Vol. 47, Is. 5. - P. 595-600, DOI 10.1209/epl/i1999-00430-0. - Cited References: 34 . - ISSN 0295-5075РУБ Physics, Multidisciplinary

Аннотация: We describe an effect of the generation of direct current which may arise in semiconductors or semiconductor microstructures due to a mixing of coherent electromagnetic radiations of commensurate frequencies. The effect is, in essence, due to a nonparabolicity of the electron energy bands and is stronger in systems where this nonparabolicity is greater. We have made exact calculations in the framework of the Kane model, applicable to narrow-gap semiconductors and the tight-binding model which we employ for a description of a semiconductor superlattice.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Loughborough Univ Technol, Sch Math & Phys Sci, Loughborough LE11 3TU, Leics, England
Russian Acad Sci, LD Landau Theoret Phys Inst, Chernogolovka 142432, Russia
ИФ СО РАН
Kirensky Institute of Physics, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Sch. of Math. and Physical Sciences, Loughborough University, Loughborough LE11 3TU, United Kingdom
Landau Inst. for Theoretical Physics, Russian Academy of Sciences, Moscow 142432, Russian Federation

Доп.точки доступа:
Erementchouk, M. V.; Kusmartsev, F. V.

/ K. N. Alekseev, G. P. Berman, D. K. Campbell // Phys. Rev. B. - 1998. - Vol. 58, Is. 7. - P. 3954-3962, DOI 10.1103/PhysRevB.58.3954. - Cited References: 38 . - ISSN 0163-1829РУБ Physics, Condensed Matter

Аннотация: We consider the process of resonant electron tunneling through a double-barrier potential, taking into account nonlinear dynamical effects generated by charge accumulation in the interbarrier space. We use the perturbation approach of Davydov and Ermakov, which was developed for investigating intrinsic bistability in resonant tunneling. For incoming electron flow, which is modulated slowly in time, we show that the resulting nonlinear dynamics can become chaotic, with the chaos described (because of the open nature of the system) by a strange attractor. We determine the conditions for the existence of this strange attractor and estimate characteristic experimental parameters for its observation.

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Держатели документа:
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Calif Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
Univ Calif Los Alamos Natl Lab, CNLS, Los Alamos, NM 87545 USA
Univ Illinois, Dept Phys, Urbana, IL 61801 USA
ИФ СО РАН

Доп.точки доступа:
Berman, G. P.; Campbell, D. K.

/ K. N. Alekseev, J. . Perina // Phys. Rev. E. - 1998. - Vol. 57, Is. 4. - P. 4023-4034, DOI 10.1103/PhysRevE.57.4023. - Cited References: 62 . - ISSN 1063-651XРУБ Physics, Fluids & Plasmas + Physics, Mathematical

Аннотация: We investigate theoretically the dynamics of squeezed state generation in nonlinear systems possessing a transition from regular to chaotic dynamics in the limit of a large number of photons. As an example, the model of a kicked Kerr oscillator is considered. We show that at the transition to quantum chaos the maximum possible degree of squeezing increases exponentially in time, in contrast to the regular dynamics, where the degree of squeezing increases only powerwise in time. We demonstrate the one-to-one correspondence of the degree of squeezing and the value of the local Lyapunov instability rate in the corresponding classical chaotic system.

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Держатели документа:
Abo Akad, Dept Phys, SF-20500 Turku, Finland
Russian Acad Sci, LV Kirensky Phys Inst, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
Palacky Univ, Dept Opt, Olomouc 77207, Czech Republic
Palacky Univ, Joint Lab Opt, Olomouc 77207, Czech Republic
ИФ СО РАН

Доп.точки доступа:
Perina, J.

/ K. N. Alekseev [et al.] // Phys. Rev. Lett. - 1998. - Vol. 80, Is. 12. - P. 2669-2672, DOI 10.1103/PhysRevLett.80.2669. - Cited References: 21 . - ISSN 0031-9007РУБ Physics, Multidisciplinary

Аннотация: We study a resistively shunted semiconductor superlattice subject to a high-frequency electric field. Using a balance equation approach that incorporates the influence of the electric circuit, we determine numerically a range of amplitude and frequency of the ac field for which a de bias and current are generated spontaneously and show that this region is likely accessible to current experiments. Our simulations reveal that the Bloch frequency corresponding to the spontaneous de bias is approximately an integer multiple of the ac field frequency.

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Держатели документа:
Univ Illinois, Dept Phys, Urbana, IL 61801 USA
NORDITA, DK-2100 Copenhagen O, Denmark
LV Kirensky Phys Inst, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
Loughborough Univ Technol, Dept Phys, Loughborough LE11 3TU, Leics, England
ИФ СО РАН

Доп.точки доступа:
Alekseev, K. N.; Cannon, E. H.; McKinney, J. C.; Kusmartsev, F. V.; Campbell, D. K.

/ K. N. Alekseev, D. S. Priimak // J. Exp. Theor. Phys. - 1998. - Vol. 86, Is. 1. - P. 61-70, DOI 10.1134/1.558469. - Cited References: 41 . - ISSN 1063-7761РУБ Physics, Multidisciplinary

Аннотация: We examine the dynamics of a wave packet that initially corresponds to a coherent state in the model of a quantum rotator excited by a periodic sequence of kicks. This model is the main model of quantum chaos and allows for a transition from regular behavior to chaotic in the classical limit. By doing a numerical experiment we study the generation of squeezed states in quasiclassical conditions and in a time interval when quantum-classical correspondence is well-defined. We find that the degree of squeezing depends on the degree of local instability in the system and increases with the Chirikov classical stochasticity parameter. We also discuss the dependence of the degree of squeezing on the initial width of the packet, the problem of stability and observability of squeezed states in the transition to quantum chaos, and the dynamics of disintegration of wave packets in quantum chaos. (C) 1998 American Institute of Physics.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Priimak, D. S.

/ K. N. ALEKSEEV, N. V. ALEKSEEVA // Phys. Lett. A. - 1992. - Vol. 162, Is. 1. - P. 82-85, DOI 10.1016/0375-9601(92)90965-O. - Cited References: 26 . - ISSN 0375-9601РУБ Physics, Multidisciplinary

Аннотация: Interaction of an impurity center in crystal with light and crystal lattice vibrations is considered. Conditions of the transition to Hamiltonian chaos have been obtained for the case of strong and resonant electron-phonon coupling.

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Держатели документа:
Kirensky Institute of Physics, 660036 Krasnoyarsk, Russia, Russian Federation
ИФ СО РАН

Доп.точки доступа:
ALEKSEEVA, N. V.

/ K. N. Alekseev [et al.] // Phys. Rev. B. - 1996. - Vol. 54, Is. 15. - P. 10625-10636, DOI 10.1103/PhysRevB.54.10625. - Cited References: 89 . - ISSN 0163-1829РУБ Physics, Condensed Matter

Аннотация: We consider the motion of ballistic electrons in a miniband of a semiconductor superlattice (SSL) under the influence of an external, time-periodic electric field. We use a semiclassical, balance-equation approach, which incorporates elastic and inelastic scattering (as dissipation) and the self-consistent field generated by the electron motion. The coupling of electrons in the miniband to the self-consistent held produces a cooperative nonlinear oscillatory mode which, when interacting with the oscillatory external field and the intrinsic Bloch-type oscillatory mode, can lead to complicated dynamics, including dissipative chaos. For a range of values of the dissipation parameters we determine the regions in the amplitude-frequency plane of the external field in which chaos can occur. Our results suggest that for terahertz external fields of the amplitudes achieved by present-day free-electron lasers, chaos may be observable in SSL's. We clarify the nature of this interesting nonlinear dynamics in the superlattice-external-field system by exploring analogies to the Dicke model of an ensemble of two-level atoms coupled with a resonant cavity field, and to Josephson junctions.

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Держатели документа:
LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545
LV KIRENSKII INST PHYS,KRASNOYARSK 660036,RUSSIA
UNIV ILLINOIS,DEPT PHYS,URBANA,IL 61801
ИФ СО РАН

Доп.точки доступа:
Alekseev, K. N.; Berman, G. P.; Campbell, D. K.; Cannon, E. H.; Cargo, M. C.

[Preprint] : препринт. № 598Ф / K. N. Alekseev, G. P. Berman ; Акад. наук СССР [et al.]. - Красноярск : ИФ СО АН СССР, 1989. - 8 p. - Библиогр. - 180 экз.
Перевод заглавия: Динамический хаос при взаимодействии света с примесными центрами в кристалле
   Перевод заглавия: Динамический хаос при взаимодействии света с примесными центрами в кристалле

Держатели документа:
ГУНБ Красноярского края

Доп.точки доступа:
Berman, G. P.; Берман, Геннадий Петрович; Алексеев, Кирилл Николаевич; Академия наук СССР; Сибирское отделение АН СССР; Институт физики им. Л.В. Киренского Сибирского отделения АН СССР
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