M ar 2 00 3 A quantum - kinetic equation for the description of internal dynamics of multilevel atomic systems moving through a target matter
نویسنده
چکیده
The quantum mechanical consideration of a passage of relativistic elementary atoms (EA) through a target matter is given. A quantum-kinetic equation for the density matrix describing their internal state evolution at EA rest frame is derived.
منابع مشابه
Quantum - kinetic equation for the description of internal dynamics of multilvel atomic systems moving through a target matter
The quantum mechanical consideration of passage of relativistic elementary atoms (EA) through a target matter is given. A quantum-kinetic equation for the density matrix describing their inner state evolution in the EA rest frame is derived.
متن کاملDensity Matrix Kinetic Equation Describing a Passage of Fast Atomic Systems through Matter
The quantum-mechanical consideration of a passage of fast dimesoatoms through matter is given. A set of quantum-kinetic equations for the density matrix elements describing their internal state evolution is derived. It is shown that probabilistic description of internal dynamics of hydrogen-like atoms is impossible even at sufficiently low energies because of the “accidental” degeneracy of thei...
متن کاملar X iv : 0 70 5 . 45 49 v 1 [ gr - q c ] 3 1 M ay 2 00 7 Quantum - theoretical description of the cosmological constant as the zero - point energy
The present paper seeks to construct a quantum theory of the cosmological constant in which its presently observed very small value emerges naturally. Large scale cosmological observations over the past decade (see references cited in [1], and [2-4]) have provided data which are in accord with the simplest cosmological model LCDM (Λ + Cold Dark Matter) [4-7]. This model is governed by the homog...
متن کاملar X iv : a st ro - p h / 07 01 01 7 v 2 2 9 M ay 2 00 7 Neutrino radiation from dense matter ∗
This article provides a concise review of the problem of neutrino radiation from dense matter. The subjects addressed include quantum kinetic equations for neutrino transport, collision integrals describing neutrino radiation through charged and neutral current interactions, radiation rates from pair-correlated baryonic and color superconducting quark matter.
متن کاملar X iv : c on d - m at / 0 11 21 29 v 3 1 F eb 2 00 2 The stochastic Gross - Pitaevskii equation
We show how to adapt the ideas of local energy and momentum conservation in order to derive modifications to the Gross-Pitaevskii equation which can be used phenomenologically to describe irreversible effects in a Bose-Einstein condensate. Our approach involves the derivation of a simplified quantum kinetic theory, in which all processes are treated locally. It is shown that this kinetic theory...
متن کامل