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Общее количество найденных документов : 123
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1.


    Berman, G. P.
    A non-linear resonance in a system of surface-state electrons bound to the helium surface / G. P. Berman, A. R. Kolovsky, G. M. Zaslavsky // Phys. Lett. A. - 1984. - Vol. 105, Is. 9. - P. 483-486, DOI 10.1016/0375-9601(84)91042-9. - Cited References: 24 . - ISSN 0375-9601
РУБ Physics, Multidisciplinary


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Scopus
Держатели документа:
L.V. Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
ИФ СО РАН
Доп.точки доступа:
Kolovsky, A. R.; Коловский, Андрей Радиевич; Zaslavsky, G. M.; Заславский, Георгий Моисеевич; Берман, Геннадий Петрович
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2.


    Bulgakov, E. N.
    Mixing of bound states with electron transport by a radiation field in waveguides / E. N. Bulgakov, A. F. Sadreev // J. Exp. Theor. Phys. - 1998. - Vol. 87, Is. 6. - P. 1058-1067, DOI 10.1134/1.558621. - Cited References: 27 . - ISSN 1063-7761
РУБ Physics, Multidisciplinary
Рубрики:
CLASSICALLY UNBOUND SYSTEM
   HALL RESISTANCE ANOMALIES
   QUANTUM WAVE-GUIDES
   POINT CONTACTS
   WIRES
   TIME
   CONDUCTANCE
Аннотация: Electron transmission in the two-, three-, and four-terminal nanostructures is considered under the influence of a radiation field. The frequency of the radiation field is tuned to the transition between the energy of a bound state and the Fermi energy of the incident electrons. The radiation induced resonant peaks and dips of the electron transport are exhibited for zero and low magnetic fields. It is shown that rotation of the radiation field polarization can effectively control the electron transport into different electrodes attached to the structures because of the symmetry of the structures. The resonant anomalies of the Hall resistance are found in a weak magnetic field. (C) 1998 American Institute of Physics. [S1063-7761(98)00412-0].

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Abo Akad Univ, Inst Fys, Dept Phys, SF-20500 Abo, Finland
ИФ СО РАН

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
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3.


    Bulgakov, E. N.
    The effect of bound states in microwave waveguides on electromagnetic wave propagation / E. N. Bulgakov, A. F. Sadreev // Tech. Phys. - 2001. - Vol. 46, Is. 10. - P. 1281-1290, DOI 10.1134/1.1412064. - Cited References: 15 . - ISSN 1063-7842
РУБ Physics, Applied
Рубрики:
RADIATION-FIELD
   HALL RESISTANCE
   QUANTUM WIRES
   GUIDES
Аннотация: The transmission of a TE microwave field with a frequency omega through Gamma, T, and X waveguide junctions filled with a ferromagnetic is considered. These junctions are known to have bound states with below-cutoff frequencies. A probing microwave radiation with a frequency Omega applied to the scattering region generates magnetic oscillations with frequencies omega + n Omega (where n = 0, +/-1, +/-2, ...), which resonantly combine with the bound waveguide states. This effect provides for a new method of studying bound waveguide states and efficiently controlling the transmission of microwave radiation. (C) 2001 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden
ИФ СО РАН
Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Dept. of Phys. and Msrmt. Technology, Linkoping University, S-581 83 Linkoping, Sweden

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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4.


   
    Multiple bound states in scissor-shaped waveguides / E. N. Bulgakov [et al.] // Phys. Rev. B. - 2002. - Vol. 66, Is. 15. - Ст. 155109, DOI 10.1103/PhysRevB.66.155109. - Cited References: 32 . - ISSN 1098-0121
РУБ Physics, Condensed Matter
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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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Acad Sci Czech Republ, Inst Nucl Phys, CZ-25068 Rez, Czech Republic
Czech Tech Univ, Doppler Inst, Prague 11519, Czech Republic
Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden
ИФ СО РАН

Доп.точки доступа:
Bulgakov, E. N.; Булгаков, Евгений Николаевич; Exner, P.; Pichugin, K. N.; Пичугин, Константин Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович
}
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5.


   
    Bound states in the continuum in open Aharonov-Bohm rings / E. N. Bulgakov [et al.] // JETP Letters. - 2006. - Vol. 84, Is. 8. - P. 430-435, DOI 10.1134/S0021364006200057. - Cited References: 33 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary
Рубрики:
WAVE-GUIDE
   QUANTUM
   TRANSMISSION
   SCATTERING
   BILLIARDS
   ELECTRON
Аннотация: Using the formalism of the effective Hamiltonian, we consider bound states in a continuum (BIC). They are nonhermitian effective Hamiltonian eigenstates that have real eigenvalues. It is shown that BICs are orthogonal to open channels of the leads, i.e., disconnected from the continuum. As a result, BICs can be superposed to a transport solution with an arbitrary coefficient and exist in a propagation band. The one-dimensional Aharonov-Bohm rings that are opened by attaching single-channel leads to them allow exact consideration of BICs. BICs occur at discrete values of the energy and magnetic flux; however, it's realization strongly depends on the way to the BIC point.

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Держатели документа:
Russian Acad Sci, Inst Phys, Krasnoyarsk 660036, Russia
Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
ИФ СО РАН
Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Max-Planck-Institut fur Physik Komplexer Systeme, D-01187 Dresden, Germany

Доп.точки доступа:
Bulgakov, E. N.; Булгаков, Евгений Николаевич; Pichugin, K. N.; Пичугин, Константин Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Rotter, I.
}
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6.


    Sadreev, A. F.
    Bound states in the continuum in open quantum billiards with a variable shape / A. F. Sadreev, E. N. Bulgakov, I. . Rotter // Phys. Rev. B. - 2006. - Vol. 73, Is. 23. - Ст. 235342, DOI 10.1103/PhysRevB.73.235342. - Cited References: 24 . - ISSN 1098-0121
РУБ Physics, Condensed Matter
Рубрики:
TRANSMISSION
   RESONANCES
   ELECTRON
   DYNAMICS
Аннотация: We show the existence of bound states in the continuum (BICs) in quantum billiards (QBs) that are opened by attaching single-channel leads to them. They may be observed by varying an external parameter continuously, e.g., the shape of the QB. At some values of the parameter, resonance states with vanishing decay width (the BICs) occur. They are localized almost completely in the interior of the closed system. The phenomenon is shown analytically to exist in the simplest case of a two level QB and is complemented by numerical calculations for a real QB.

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Держатели документа:
Acad Sci, Inst Phys, Krasnoyarsk 660036, Russia
Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
ИФ СО РАН
Institute of Physics, Academy of Sciences, 660036 Krasnoyarsk, Russian Federation
Max-Planck-Institut fur Physik Komplexer Systeme, D-01187 Dresden, Germany

Доп.точки доступа:
Bulgakov, E. N.; Булгаков, Евгений Николаевич; Rotter, I.; Садреев, Алмаз Фаттахович
}
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7.


    Maksimov, D. N.
    Bound states in elastic waveguides / D. N. Maksimov, A. F. Sadreev // Phys. Rev. E. - 2006. - Vol. 74, Is. 1. - Ст. 16201, DOI 10.1103/PhysRevE.74.016201. - Cited References: 26 . - ISSN 1539-3755
РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
CLASSICALLY UNBOUND SYSTEM
   QUANTUM WIRES
Аннотация: We consider numerically the L-, T-, and X-shaped elastic waveguides with the Dirichlet boundary conditions for in-plane deformations (displacements) which obey the vectorial Navier-Cauchy equation. In the X-shaped waveguide we show the existence of a doubly degenerate bound state with frequency below the first symmetrical cutoff frequency, which belongs to the two-dimensional irreducible representation E of symmetry group C-4v. Moreover the next bound state is below the next antisymmetric cutoff frequency. This bound state belongs to the irreducible representation A(2). The T-shaped waveguide has only one bound state while the L-shaped one has no bound states.

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Держатели документа:
Russian Acad Sci, Inst Phys, Krasnoyarsk 660036, Russia
Linkoping Univ, Dept Phys & Measurement Technol, SE-58183 Linkoping, Sweden
ИФ СО РАН

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Максимов, Дмитрий Николаевич
}
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8.


   
    Soil Dielectric Model Accounting for Contribution of Bound Water Spectra through Clay Content [Текст] / V. L. Mironov, L. G. Kosolapova, S. V. Fomin // PIERS Online. - 2008. - Vol. 4, No. 1. - P. 411-415

Материалы конференции

Доп.точки доступа:
Mironov, V.L.; Kosolapova, L.G.; Fomin, S.V.; Progress In Electromagnetics Research Symposium(2008 ; Cambridge)
}
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9.


   
    Transmission through quantum dots with variable shape. Bound states in the continuum [Text] / A. F. Sadreev, E. N. Bulgakov [et al.] // Quantum Dots, Research, Technology and applications : Nova Sciencers Publ., 2008. - P547-577


Доп.точки доступа:
Sadreev, A.F.; Bulgakov, E.N.; Pichugin, K.N.; Rotter, I.; Babushkina, T.V.
}
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10.


    Sadreev, A. F.
    Two-Electron Bound States in a Continuum in Quantum Dots / A. F. Sadreev, T. V. Babushkina // JETP Letters. - 2008. - Vol. 88, Is. 5. - P. 312-317, DOI 10.1134/S0021364008170050. - Cited References: 30 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary
Рубрики:
LOCALIZED MAGNETIC STATES
   METALS
Аннотация: A bound state in a continuum (BIC) might appear in open quantum dots for the variation in the dot's shape. By means of the equations of motion of the Green's functions, we investigate the effect of strong intradot Coulomb interactions on that phenomenon within the framework of(he impurity Anderson model. The equation that the imaginary part of the poles of the Green's function equals zero yields the condition for BICs. As a result, we show that the Coulomb interactions replicate the single-electron BICs into two-electron ones.

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Держатели документа:
[Sadreev, A. F.] Russian Acad Sci, Inst Phys, Krasnoyarsk 660036, Russia
[Babushkina, T. V.] Siberian Fed Univ, Krasnoyarsk 660079, Russia
ИФ СО РАН
Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660079, Russian Federation

Доп.точки доступа:
Babushkina, T. V.; Садреев, Алмаз Фаттахович
}
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