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Open Quantum Systems Decoherence

Distribution of Off-Diagonal Cross Sections in Quantum Chaotic Scattering: Exact Results and Data Comparison

arXiv
Authors: Santosh Kumar, Barbara Dietz, Thomas Guhr, Achim Richter

Year

2017

Paper ID

25059

Status

Preprint

Abstract Read

~2 min

Abstract Words

95

Citations

N/A

Abstract

The recently derived distributions for the scattering-matrix elements in quantum chaotic systems are not accessible in the majority of experiments, whereas the cross sections are. We analytically compute distributions for the off-diagonal cross sections in the Heidelberg approach, which is ap- plicable to a wide range of quantum chaotic systems. We thus eventually fully solve a problem which already arose more than half a century ago in compound-nucleus scattering. We compare our results with data from microwave and compound-nucleus experiments, particularly addressing the transition from isolated resonances towards the Ericson regime of strongly overlapping ones.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2017 reference point for readers tracking recent quantum research.
  • The recently derived distributions for the scattering-matrix elements in quantum chaotic systems are not accessible in the majority of experiments, whereas the cross sections are.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1711.08320 [2] arXiv https://arxiv.org/abs/1711.08320 [3] Publisher https://arxiv.org/abs/1711.08320

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