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Time evolution and spectral concentration in quantum systems

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  • Brändas, E.

Abstract

Time dependence and spectral concentration in quantum systems are reviewed. A partitioning technique is presented based on retarded and advanced propagators. The associated fundamental time symmetry is conveniently formulated in correspondence with the classical notion of reversal of time and momenta. Symmetry breakings occur when a particular convolution product is broken up into past and future times.

Suggested Citation

  • Brändas, E., 1976. "Time evolution and spectral concentration in quantum systems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 82(1), pages 97-112.
    • Handle: RePEc:eee:phsmap:v:82:y:1976:i:1:p:97-112
    DOI: 10.1016/0378-4371(76)90093-5
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    1. Cato, James C. & Owens, Thomas R., 1968. "An Economic Engineering Analysis of Cotton Milling Facilities in the Texas High Plains," Archive 259774, Texas Tech University, Department of Agricultural and Applied Economics.
    2. Williams, S.J. & McIntosh, E.N., 1974. "Requirements for abortion services," American Journal of Public Health, American Public Health Association, vol. 64(7), pages 716-717.
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