Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Olkhovsky, V. S."'
Autor:
Omelchenko, S. A., Olkhovsky, V. S.
It is shown, that the exponential decrease of the energy spectra of the fragments with growing its energy, which does not depend from the fragment type, targets, projectiles and projectile energies, and which sometimes accompanied slight oscillations
Externí odkaz:
http://arxiv.org/abs/1812.00747
During last 20 years there was revealed and published the phenomenon of the appearing of the time advance instead of the time delay at the region of a compound-nucleus resonance, distorted by the non-resonant background (in the center-of-mass (C-) sy
Externí odkaz:
http://arxiv.org/abs/1101.5541
The phenomenon of time resonances (or explosions) can explain the exponential reduction of the energy, which is accompanied for the certain degree by slight fluctuations under some conditions in the range of the energy strongly overlapped compound-re
Externí odkaz:
http://arxiv.org/abs/0902.2665
Autor:
Olkhovsky, V. S., Dolinska, M. E.
In practically all known till now methods of nuclear chronometry there were usually taken into account the life-times of only fundamental states of $\alpha$-radioactive nuclei. But in the processes of nuclear synthesis in stars and under the influenc
Externí odkaz:
http://arxiv.org/abs/0902.1077
Autor:
Olkhovsky, V. S., Recami, E.
Publikováno v:
Int.J.Mod.Phys.A22:5063-5087,2007
Some results are reviewed and developments are presented on the study of Time in quantum mechanics as an observable, canonically conjugate to energy. Operators for the observable Time are investigated in particle and photon quantum theory. In particu
Externí odkaz:
http://arxiv.org/abs/quant-ph/0605069
Publikováno v:
Rivista del Nuovo Cimento vol.26, n.4 (2003)
In this paper we examine critically and in detail some existing definitions for the tunnelling times, namely: the phase-time; the centroid-based times; the Buttiker and Landauer times; the Larmor times; the complex (path-integral and Bohm) times; the
Externí odkaz:
http://arxiv.org/abs/quant-ph/0412146
Publikováno v:
Phys.Lett. A248 (1998) 156-160
It is shown that the Hartman-Fletcher effect is valid for all the known expressions of the mean tunnelling time, in various nonrelativistic approaches, for the case of finite width barriers without absorption. Then, we show that the same effect is no
Externí odkaz:
http://arxiv.org/abs/quant-ph/9810053
Autor:
Olkhovsky, V. S., Agresti, A.
A compact analysis of development and prospects in the study of the tunnelling evolution is given. A new systematization of various approaches to defining tunnelling times in the light of time as a quantum mechanical observable is proposed. The probl
Externí odkaz:
http://arxiv.org/abs/physics/9612004
In a recent review paper [{\em Phys. Reports} {\bf 214} (1992) 339] we proposed, within conventional quantum mechanics, new definitions for the sub-barrier tunnelling and reflection times. \ Aims of the present paper are: \ (i) presenting and analysi
Externí odkaz:
http://arxiv.org/abs/quant-ph/9508010
Autor:
Baldo, M.1 baldo@ct.infn.it, Olkhovsky, V. S.2 olkhovsk@kinr.kiev.ua
Publikováno v:
Theoretical & Mathematical Physics. Apr2006, Vol. 147 Issue 1, p541-553. 13p. 2 Diagrams.