Interaction-driven equilibrium and statistical laws in small systems: The cerium atom

Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

Volumn 57, Issue 5, 1998, Pages 4933-4942

  Flambaum, V V ^a   Gribakina, A A ^a   Gribakin, G F ^a   Ponomarev, I V ^a  

^a UNIVERSITY OF NEW SOUTH WALES   (Australia)

Author keywords

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Indexed keywords

EID: 0000619762     PISSN: 1063651X     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevE.57.4933     Document Type: Article

References (30)

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29. The eigenstates of the system are in fact linear combinations of the states k, which can be considered as multiparticle basis states of the system in the Fock space. The mixing of these basis states within the eigenstates occurs locally, in the energy interval determined by the spreading width Γ, which depends on the strength of the residual interaction between the particles and practically does not depend on energy. It is usually narrower than the typical interval involved in averaging over the canonical ensemble, which increases as T3/2 [this estimate follows from Eq. (8)].
30. In numerical calculation we always have to cut off the Hamiltonian matrix somewhere. Therefore we call the exact states here the eigenstates of the matrix in the truncated basis.