Quantum transients
نویسندگان
چکیده
منابع مشابه
Quantum transients
Quantum transients are temporary features of matter waves before they reach a stationary regime. Transients may arise after the preparation of an unstable initial state or due to a sudden interaction or a change in the boundary conditions. Examples are diffraction in time, buildup processes, decay, trapping, forerunners or pulse formation, as well as other phenomena recently discovered, such as...
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The quantum-resonant evolution of the mean kinetic energy (MKE) of the kicked particle is studied in detail on different time scales for general periodic kicking potentials. It is shown that the asymptotic time behavior of a wave-packet MKE is typically a linear growth with bounded fluctuations having a simple number-theoretical origin. For a large class of wave packets, the MKE is shown to be ...
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The basic ingredients in a semiclassical theory are the classical invariant objects serving as a support for quantization. Recent studies, mainly obtained on quantum maps, have led to the commonly accepted belief that the classical repeller-the set of nonescaping orbits in the future and past evolution-is the object that suitably plays this role in open scattering systems. In this paper we pres...
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M. S. Rudner,1 F. H. L. Koppens,2,3 J. A. Folk,2,4 L. M. K. Vandersypen,2 and L. S. Levitov5 1Department of Physics, Harvard University, 17 Oxford Street, Cambridge, Massachusetts 02138, USA 2Kavli Institute of NanoScience, TU Delft, P.O. Box 5046, NL-2600 GA, Delft, The Netherlands 3ICFO–Institut de Ciencies Fotoniques, Mediterranean Technology Park, E-08860 Castelldefels (Barcelona), Spain 4D...
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A 3-level system is comprised of three Hilbert states labeled |1>, |2>, and |3>. In general, these 3 states represent a subsystem of a more complex multilevel system in atoms, molecules, or solids. As soon as we connect two of these three states by some time dependent interaction, transients occur. Numerous experiments of this sort have been performed recently in optical (1-5) as well as in rad...
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ژورنال
عنوان ژورنال: Physics Reports
سال: 2009
ISSN: 0370-1573
DOI: 10.1016/j.physrep.2009.03.002