Martin Sieber 2000 J. Phys. A: Math. Gen. 33 6263 doi:10.1088/0305-4470/33/36/301
Martin Sieber
Show affiliationsWe consider quantum systems with a chaotic classical limit that are perturbed by a point-like scatterer. The spectral form factor K(τ) for these systems is evaluated semiclassically in terms of periodic and diffractive orbits. It is shown for order τ2 and τ3 that off-diagonal contributions to the form factor which involve diffractive orbits cancel exactly the diagonal contributions from diffractive orbits, implying that the perturbation by the scatterer does not change the spectral statistic. We further show that parametric spectral statistics for these systems are universal for small changes of the strength of the scatterer.
05.45.Mt Quantum chaos; semiclassical methods
03.65.Yz Decoherence; open systems; quantum statistical methods
81Q20 Semiclassical techniques including WKB and Maslov methods
Issue 36 (15 September 2000)
Received 8 March 2000
Martin Sieber 2000 J. Phys. A: Math. Gen. 33 6263
Sung Ha Park et al 2004 Nanotechnology 15 S525
Yukiyasu Ozeki 2003 J. Phys. A: Math. Gen. 36 2673
Yingjie Liu et al 2009 Nonlinearity 22 2799
M Novello and R P Neves 2002 Class. Quantum Grav. 19 5335
Carlos F de Araujo Jr et al 1997 J. Phys. A: Math. Gen. 30 4687
Fiorenzo Bastianelli and Roberto Zucchini 1999 Class. Quantum Grav. 16 3673
A N F Aleixo and A B Balantekin 2007 J. Phys. A: Math. Theor. 40 3933
Kirill Shtengel et al 2005 J. Phys. A: Math. Gen. 38 L589
S. Okada et al 2003 Nucl. Fusion 43 1140