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Open Quantum Systems Decoherence
On the change of density of states in two-body interactions
arXiv
Authors: Bo Gao
Year
2016
Paper ID
42790
Status
Preprint
Abstract Read
~2 min
Abstract Words
91
Citations
N/A
Abstract
We derive a general relation in two-body scattering theory that more directly relates the change of density of states (DDOS) due to interaction to the shape of the potential. The relation allows us to infer certain global properties of the DDOS from the global properties of the potential. In particular, we show that DDOS is negative at all energies and for all partial waves, for potentials that are more repulsive than +1/r2 everywhere. This behavior represents a different class of global properties of DDOS from that described by the Levinson's theorem.
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- This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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- We derive a general relation in two-body scattering theory that more directly relates the change of density of states (DDOS) due to interaction to the shape of the potential.
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