Published June 2007 | Version v1
Journal article Metadata-only

Quantum-classical transition for an analog of the double-slit experiment in complex collisions: Dynamical decoherence in quantum many-body systems

Creators

  • 1. Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico (UNAM), 62210-Cuernavaca, Morelos (Mexico)
  • 2. Atomic and Molecular Physics Laboratary, RSPhysSE, Australian National University, Canberra ACT 0200 (Australia)
  • 3. Nonlinear Physics Center and Department of Theoretical Physics, RSPhysSE, Australian National University, Canberra ACT 0200 (Australia)
  • 4. Facultad de Ciencias, Universidad Autonoma del Estado de Morelos (UAEM), 62209-Cuernavaca, Morelos (Mexico)
  • 5. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)

Description

We study coherent superpositions of clockwise and anticlockwise rotating intermediate complexes with overlapping resonances formed in bimolecular chemical reactions. Disintegration of such complexes represents an analog of a famous double-slit experiment. The time for disappearance of the interference fringes is estimated from heuristic arguments related to fingerprints of chaotic dynamics of a classical counterpart of the coherently rotating complex. Validity of this estimate is confirmed numerically for the H+D2 chemical reaction. Thus we demonstrate the quantum-classical transition in temporal behavior of highly excited quantum many-body systems in the absence of external noise and coupling to an environment

Additional details

Identifiers

DOI
10.1103/PhysRevA.75.062110;
arXiv
arXiv:quant-ph/0610091v2;

Publishing Information

Journal Title
Physical Review. A
Journal Volume
75
Journal Issue
6
Journal Page Range
p. 062110-062110.5
ISSN
1050-2947
CODEN
PLRAAN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39014463
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
ATOM-MOLECULE COLLISIONS; CHAOS THEORY; COUPLING; DEUTERIUM; HYDROGEN; INTERFERENCE; ISOTOPIC EXCHANGE; MANY-BODY PROBLEM; QUANTUM DECOHERENCE; RESONANCE
Descriptors DEC
ATOM COLLISIONS; COLLISIONS; ELEMENTS; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; MATHEMATICS; MOLECULE COLLISIONS; NONMETALS; NUCLEI; ODD-ODD NUCLEI; STABLE ISOTOPES

Optional Information

Notes
(c) 2007 The American Physical Society