By Chris Engelbrecht Summer School on Theoretical Physics 1992 blydepoor, W. D. Heiss, W. D. Heiss

ISBN-10: 0387562532

ISBN-13: 9780387562537

Previously the $64000 proposal of quantum chaos has remained a bit unwell outlined. This quantity tackles the ever present borderline among classical and quantum mechanics, learning specifically the semiclassical restrict of chaotic platforms. the consequences of affliction from dynamics and their relation to stochastic structures, quantum coherence results in mesoscopic platforms, and the correct theoretical methods are fruitfully mixed during this quantity. the most important paradigms of what's known as quantum chaos, random matrix concept and purposes to condensed topic and nuclear physics are offered. precise discussions of experimental paintings with specific emphasis on atomic physics are integrated. The e-book is extremely prompt for graduate-student seminars. - this article refers to an out of print or unavailable version of this identify.

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**Additional resources for Chaos and Quantum Chaos: Proceedings of the Eighth Chris Engelbrecht Summer School on Theoretical Physics, Held at Blydepoort, Eastern Transvaa**

**Sample text**

However, for distant states a new, double-hump, structure is formed. The principal parameter is the overlapping integral which determines the energy splitting in the pair" Ac ,~ v. 10b) where w = TA~/2~r, and A is a constant. 9). 15. [63] via the correlation functions. 11)). 12/ The latter expression holds for L >> l,~. 6) is explained just by the effect of Mott's states in the low-frequency part of the spectrum [48]. 10), respectively. 5 according to our numerical experiments. The total probability pl << 1, and this explains why multi-hump states are very rare.

In the opposite limiting case A >> I ( D >> C) the relaxation time scale, being finite, is nevertheless long enough for the relaxation to the ergodic steady state to be accomplished. In this case the final steady state is close to that in classical mechanics. The same is true for conservative systems of two freedoms like billiards or cavities. 11)). 5. F i n i t e - t i m e in discrete statistical spectrum. relaxation We turn now to a more accurate description of the quantum relaxation in 27 the standard map.

It is not excluded that this approach could provide some physical justification for a formal procedure of smoothing ~(E - H) [10]. 12) [26] the divergence is only logarithmic in T and, hence, insensitive to the exact truncation border. In a recent theory of the series over classical periodic orbits [105] the truncation border was found to be at T,~ax "" tR, the relaxation time scale. In this theory the series represent quantum eigenvalues. A natural conjecture is that the truncation T,~ax in both cases is of the order of the corresponding localization time scale.

### Chaos and Quantum Chaos: Proceedings of the Eighth Chris Engelbrecht Summer School on Theoretical Physics, Held at Blydepoort, Eastern Transvaa by Chris Engelbrecht Summer School on Theoretical Physics 1992 blydepoor, W. D. Heiss, W. D. Heiss

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