Zobrazeno 1 - 10 of 25 pro vyhledávání: '"I. M. Pavlichenkov"'
1
Plasmon-phonon mechanism of nonradiative transition 2S 1/2 → 2P 1/2 in grazing scattering of a hydrogen atom at the surface of a solid
Autor: I. M. Pavlichenkov
Publikováno v: Journal of Experimental and Theoretical Physics. 115:586-598
The probability of nonradiative transition 2S1/2 → 2P1/2 in the case of grazing scattering of a hydrogen atom with an energy on the order of 1 keV at an Au and LiF surface is calculated in the semiclassical theory of nonadiabatic transitions. The t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d645f889b91c65bcff446dae518d4684
https://doi.org/10.1134/s1063776112100081
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2
Spin and rotation
Autor: I. M. Pavlichenkov
Publikováno v: Physics of Atomic Nuclei. 72:1180-1187
The theoretical aspects of spin-rotation coupling are presented. The approach is based on the general covariance principle. It is shown that the gyrogravitational ratio of the bare spin-1/2 and the spin-1 particles is equal to unity. That is why spin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ae8a3379332cfd325341757daf1187a
https://doi.org/10.1134/s1063778809070102
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3
Quantum bifurcations and quantum phase transitions in rotational spectra
Autor: I. M. Pavlichenkov
Publikováno v: Physics of Atomic Nuclei. 69:1008-1013
An interconnection between quantum bifurcations and quantum phase transitions is investigated. It is shown that the quantum phase transition is the limiting case of the quantum bifurcation in macroscopic systems. Critical phenomena in microscopic man
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75a63aae3729e4db85425b849a140593
https://doi.org/10.1134/s1063778806060111
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4
Configuration-dependent effect of $\Delta$I $equal$ 4 bifurcation in A $sim$ 150 superdeformed nuclei: active and inactive orbitals
Autor: I M Pavlichenkov, A A Shchurenkov
Publikováno v: Journal of Physics G: Nuclear and Particle Physics. 28:1223-1238
A simple criterion for the ΔI = 4 bifurcation is applied to 22 superdeformed bands in the A ~ 150 mass region. An analysis confirms the configuration dependence effect and allows us to discriminate between single-particle states that are active and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70e298d97e9d3a9424d6e2755565f0d8
https://doi.org/10.1088/0954-3899/28/6/306
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6
Superfluid-to-normal phase transition in superdeformed bands
Autor: I. M. Pavlichenkov
Publikováno v: Physics of Atomic Nuclei. 64:1093-1097
A semiclassically exact solution for the second inertial parameter B is found for the superfluid and normal phases. An interpolation between these limiting values shows that B changes sign in the transition region at the spin I c that is critical for
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b5d75314c83a6ca98536820a0dc107a
https://doi.org/10.1134/1.1383623
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7
Microscopic approach to transition-energy staggering in superdeformed bands
Autor: A. A. Shchurenkov, I. M. Pavlichenkov
Publikováno v: Physics of Atomic Nuclei. 64:595-610
The current status of the ΔI=4 bifurcation in superdeformed bands is reviewed by making use of a theoretical model based on the interaction of rotation and single-particle nucleon motion in nuclei with an axial deformation. It is shown that the hexa
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee0e5691cfec20c46a82244730b7643a
https://doi.org/10.1134/1.1368218
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8
Effects of high-j intruder states in the fine structure of superdeformed bands
Autor: I. M. Pavlichenkov
Publikováno v: Journal of Experimental and Theoretical Physics Letters. 66:796-801
All known cases of ΔI=4 bifurcation in superdeformed bands are analyzed on the basis of the theory proposed by the author in a previous paper [I. M. Pavlichenkov, Phys. Rev. C 55, 1275 (1997)]. It is shown that the high-j intruder single-particle st
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1958c7db0eacc45e4979db2c2d14593c
https://doi.org/10.1134/1.567600
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9
Bifurcation in the rotational spectra of nonlinear symmetric triatomic molecules
Autor: I. M. Pavlichenkov, I. N. Kozin
Publikováno v: Journal of Experimental and Theoretical Physics. 85:673-681
A microscopic theory is proposed for bifurcation in the rotational spectra of nonlinear AB2-type molecules. The theory is based on a study of small-amplitude vibrational and precessional motion near the stationary states of a rotating molecule. Bifur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::173d4284d82cf763cd538f7df9f0238f
https://doi.org/10.1134/1.558353
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10
Nonadiabatic mean field effects in theΔI=2staggering of superdeformed bands
Autor: I. M. Pavlichenkov
Publikováno v: Physical Review C. 55:1275-1281
It is shown that the {Delta}I=2 staggering in the isolated rotational band of axial nuclei may be explained by the nonaxial distortion of a self-consistent field under rotation. The method for obtaining the effective rotational Hamiltonian from the m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c73aa4da3ce6442c416a3bd2dbca5a7e
https://doi.org/10.1103/physrevc.55.1275
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