Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Yurovsky, V. A."'
The paper presents a theoretical model describing the full power spectra of synchrotron radiation generated by relativistic electrons in a turbulent magnetic field. Using the theoretical model, numerical calculations of the complete power spectra of
Externí odkaz:
http://arxiv.org/abs/2411.03868
The paper numerically investigates the propagation of galactic cosmic rays in a model magnetic field, which is a composition of an isotropic turbulent field with the Kolmogorov turbulence spectrum and a regular constant field. The dependence of the d
Externí odkaz:
http://arxiv.org/abs/2211.08873
Publikováno v:
Laser Phys. 29 (2019) 065502
In the problem of entanglement there exist two different notions. One is the entanglement of a quantum state, characterizing the state structure. The other is entanglement production by quantum operators, describing the action of operators in the giv
Externí odkaz:
http://arxiv.org/abs/1904.08294
Autor:
Yurovsky, V. A., Olshanii, M.
Publikováno v:
Phys. Rev. A 81, 043641 (2010)
In this article, we study the thermalizability of a system consisting of two atoms in a circular, transversely harmonic waveguide in the multimode regime. While showing some signatures of the quantum-chaotic behavior, the system fails to reach a ther
Externí odkaz:
http://arxiv.org/abs/1001.0225
Autor:
Yurovsky, V. A.
Publikováno v:
Phys. Rev. A 77, 012716 (2008)
Deactivation of broad quasi-one-dimensional dibosonic molecules is analyzed. Within integrable Lieb-Liniger-McGuire (LLMG) model an exact expression does not demonstrate suppression of the deactivation at low collision energies. Solution of Faddeev e
Externí odkaz:
http://arxiv.org/abs/physics/0703168
Publikováno v:
Phys. Rev. E 75, 026612 (2007)
We propose a way to control solitons in $\chi ^{(2)}$ (quadratically-nonlinear) systems by means of periodic modulation imposed on the phase-mismatch parameter ("mismatch management", MM). It may be realized in the co-transmission of fundamental-freq
Externí odkaz:
http://arxiv.org/abs/physics/0610231
Autor:
Yurovsky, V. A., Band, Y. B.
Publikováno v:
Phys. Rev. A 75, 012717 (2007)
Cold inelastic collisions of atoms or molecules are analyzed using very general arguments. In free space, the deactivation rate can be enhanced or suppressed together with the scattering length of the corresponding elastic collision via a Feshbach re
Externí odkaz:
http://arxiv.org/abs/physics/0602181
Autor:
Yurovsky, V. A.
Publikováno v:
Phys. Rev. A 73, 052709 (2006)
Bound states and collisions of atoms with two-channel two-body interactions in harmonic waveguides are analyzed. The closed-channel contributions to two-atom bound states become dominant in the case of a weak resonance. At low energies and values of
Externí odkaz:
http://arxiv.org/abs/physics/0601073
Publikováno v:
Phys. Rev. Lett. 96, 163201 (2006)
Three-body collisions of ultracold identical Bose atoms under tight cylindrical confinement are analyzed. A Feshbach resonance in two-body collisions is described by a two-channel zero-range interaction. Elimination of the closed channel in the three
Externí odkaz:
http://arxiv.org/abs/physics/0512033
Autor:
Yurovsky, V. A., Ben-Reuven, A.
Publikováno v:
Phys. Rev. A 72, 053618 (2005)
Conversion of an expanding Bose-Einstein condensate of Cs atoms to a molecular one with an efficiency of more than 30% was observed recently in experiments by M. Mark et al., Europhys. Lett. 69, 706 (2005). The theory presented here describes the exp
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505180