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Level statistics transitions in the spin-boson model
We present the nearest neighbour distribution (NND) and Δ 3 statistics for the spin-boson model. The results show a standard Poisson-Wigner (GOE) transition in the NND for large spin, but the most interesting feature is the existence of a transition between the two extreme types of fluctuation spect...
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Published in: | Physics letters. A 1991-05, Vol.155 (2), p.113-116 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We present the nearest neighbour distribution (NND) and Δ
3 statistics for the spin-boson model. The results show a standard Poisson-Wigner (GOE) transition in the NND for large spin, but the most interesting feature is the existence of a transition between the two extreme types of fluctuation spectra: picket-fence or harmonic-oscillator type for
S small to Poisson for
S large. |
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ISSN: | 0375-9601 1873-2429 |
DOI: | 10.1016/0375-9601(91)90575-S |