Journal of Experimental and Theoretical Physics

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Theoretical Analysis of the EPR Spectrum Saturation Effect with Account for Spectral Diffusion in a System with a Gaussian Distribution of Spin Resonance Frequencies
Journal of Experimental and Theoretical Physics - Tập 128 - Trang 684-699 - 2019
K. M. Salikhov, I. T. Khairuzhdinov
We have analyzed the effect of saturation of the EPR spectrum for the model situation when a set of resonance frequencies of spin packets is described by a Gaussian distribution and spectral diffusion, which is a random process without correlation, exists. We have obtained the form of the spectrum for arbitrary values of magnetic–resonant parameters: relaxation times for the longitudinal and trans...... hiện toàn bộ
Spin-flip induction of Fano resonance upon electron tunneling through atomic-scale spin structures
Journal of Experimental and Theoretical Physics - Tập 116 Số 5 - Trang 854-859 - 2013
В. В. Вальков, S. V. Aksenov, E. A. Ulanov
Electromagnetic-field amplification in finite one-dimensional photonic crystals
Journal of Experimental and Theoretical Physics - Tập 123 - Trang 373-381 - 2016
V. S. Gorelik, V. V. Kapaev
The electromagnetic-field distribution in a finite one-dimensional photonic crystal is studied using the numerical solution of Maxwell’s equations by the transfer-matrix method. The dependence of the transmission coefficient T on the period d (or the wavelength λ) has the characteristic form with M–1 (M is the number of periods in the structure) maxima with T = 1 in the allowed band of an infinite...... hiện toàn bộ
Transfer of a weakly bound electron in collisions of Rydberg atoms with neutral particles. I. Long-range interaction effects in the ionic-covalent coupling
Journal of Experimental and Theoretical Physics - Tập 117 - Trang 593-606 - 2013
V. S. Lebedev, A. A. Narits
Ion-pair formation processes are studied in collisions of Rydberg atoms with neutral particles possessing small electron affinities. Nonadiabatic transitions from a Rydberg covalent term to an ionic term of a quasi-molecule are considered using the modified Landau-Zener theory supplemented with calculation of survival factors of an anion decaying in the Coulomb field of a positive ion core. Using ...... hiện toàn bộ
Activation conduction in metallic island films
Journal of Experimental and Theoretical Physics - - 2004
A. P. Boltaev, Nicolas Penin, A. O. Pogosov, F. A. Pudonin
Terahertz radiation of Bloch oscillators excited by an electromagnetic field in lateral semiconductor superlattices
Journal of Experimental and Theoretical Physics - Tập 97 - Trang 127-137 - 2003
E. P. Dodin, A. A. Zharov
The action of a strong high-frequency electromagnetic field on a lateral semiconductor superlattice is considered based on the quasi-classical electron transport theory in the self-consistent wave formulation. The theory predicts that a lateral superlattice can emit terahertz radiation wave trains, which are associated with periodic excitation of Bloch oscillations in the superlattice arising beca...... hiện toàn bộ
Peripheral processes 2 → 3 and 2 → 4 in QED and QCD in $$p(\bar p)p$$ high-energy collisions
Journal of Experimental and Theoretical Physics - Tập 113 - Trang 637-646 - 2011
A. I. Ahmadov, Yu. M. Bystritskiy, E. A. Kuraev
Differential cross sections of processes with high-energy p(-p)p collisions—creation of a scalar, a pseudoscalar and a lepton pair—are considered in the Weizsacker-Williams approximation in QED in the QCD framework, processes with conversion of the initial proton (antiproton) to fermionic jets accompanied with one gluon jet and the state of two gluons and a quark-antiquark pair (without a rapidity...... hiện toàn bộ
Amplification of entangled states of squeezed light
Journal of Experimental and Theoretical Physics - Tập 105 - Trang 314-326 - 2007
V. N. Gorbachev, A. I. Trubilko
Two amplification schemes are considered for entangled squeezed states of light, including an Einstein-Podolsky-Rosen entangled state of continuous variables (EPR pair): propagation in a nonlinear medium and reflection from a cavity. Both schemes make use of a parametric process that can be implemented in a periodic nonlinear medium. The existence of an integral of motion makes it possible to ampl...... hiện toàn bộ
Polarization effects in radiative decay of a polarized τ lepton
Journal of Experimental and Theoretical Physics - Tập 120 - Trang 226-245 - 2015
G. I. Gakh, M. I. Konchatnij, A. Yu. Korchin, N. P. Merenkov
The polarization effects in the one-meson radiative decay of a polarized τ lepton, τ → π−γντ, are investigated. The inner bremsstrahlung and structural amplitudes are taken into account. The asymmetry of the differential decay width caused by the τ-lepton polarization and the Stokes parameters of the emitted photon itself are calculated depending on the polarization of the decaying τ lepton. These...... hiện toàn bộ
Optical transitions and cyclotron resonance at Landau levels split by a periodic potential
Journal of Experimental and Theoretical Physics - - 1998
V. Ya. Demikhovskii, A. A. Perov
The structure of the electron spectrum is investigated and selection rules are found for transitions between magnetic subbands in a surface 2D superlattice of quantum dots in a perpendicular magnetic field. The photon absorption probabilities are calculated, and the profiles of the absorption lines are determined for allowed and forbidden direct dipole transitions between subbands split off from d...... hiện toàn bộ
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