The decay of photoexcited quantum systems: a description within the statistical scattering model
arXiv:cond-mat/0404440 · doi:10.1088/0305-4470/37/29/L03
Abstract
The decay of photoexcited quantum systems (examples are photodissociation of molecules and autoionization of atoms) can be viewed as a half-collision process (an incoming photon excites the system which subsequently decays by dissociation or autoionization). For this reason, the standard statistical approach to quantum scattering, originally developed to describe nuclear compound reactions, is not directly applicable. Using an alternative approach, correlations and fluctuations of observables characterizing this process were first derived in [Fyodorov YV and Alhassid Y 1998 Phys. Rev. A 58, R3375]. Here we show how the results cited above, and more recent results incorporating direct decay processes, can be obtained from the standard statistical scattering approach by introducing one additional channel.
arXiv comment7 pages, 2 figures
References in corpus (9)
- Random Matrix Theories in Quantum Physics: Common Concepts
- Statistics of resonance poles, phase shifts and time delays in quantum chaotic scattering for systems with broken time reversal invariance
- Eigenvector statistics in non-Hermitian random matrix ensembles
- Quantum Versus Classical Decay Laws in Open Chaotic Systems
- On the statistics of resonances and non-orthogonal eigenfunctions in a model for single-channel chaotic scattering
- Photodissociation in Quantum Chaotic Systems: Random Matrix Theory of Cross-Section Fluctuations
- Signatures of the correlation hole in total and partial cross sections
- Interfering Doorway States and Giant Resonances. II: Transition Strengths
- The Spectral Autocorrelation Function in Weakly Open Chaotic Systems: Indirect Photodissociation of Molecules