Title of article :
Scaling properties of the pairing problem in the strong coupling limit Original Research Article
Author/Authors :
M.B. Barbaro، نويسنده , , R. Cenni، نويسنده , , A. Molinari، نويسنده , , M.R. Quaglia، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
17
From page :
221
To page :
237
Abstract :
We study the excited states of the pairing Hamiltonian providing an expansion for their energy in the strong coupling limit. To assess the role of the pairing interaction we apply the formalism to the case of a heavy atomic nucleus. We show that only a few statistical moments of the level distribution are sufficient to yield an accurate estimate of the energy for not too small values of the coupling image and we give the analytic expressions of the first four terms of the series. Further, we discuss the convergence radius image of the expansion showing that it strongly depends upon the details of the level distribution. Furthermore image is not related to the critical values of the coupling image, which characterize the physics of the pairing Hamiltonian, since it can exist even in the absence of these critical points.
Keywords :
Richardson equations , Pairing Hamiltonian , Strong coupling limit
Journal title :
Annals of Physics
Serial Year :
2013
Journal title :
Annals of Physics
Record number :
1206913
Link To Document :
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