Nuclear Superfluidity: Pairing in Finite Systems

Copertina anteriore
Cambridge University Press, 8 giu 2005 - 378 pagine
Nuclear Superfluidity is an advanced text devoted exclusively to pair correlations in nuclei. It begins by exploring pair correlations in a variety of systems including superconductivity in metals at low temperatures and superfluidity in liquid 3He and in neutron stars. The book goes on to introduce basic theoretical methods, symmetry breaking and symmetry restoration in finite many-body systems. The last four chapters are devoted to introducing results on the role of induced interactions in the structure of both normal and exotic nuclei. The most important of these is the renormalization of the pairing interaction due to the coupling of pairs of nucleons to low energy nuclear collective excitations. This book will be essential reading for researchers and students in both experimental and theoretical nuclear physics, and related research fields such as metal clusters, fullerenes and quantum dots.
 

Sommario

The pairing force and seniority
33
The BCS theory
52
Spontaneous symmetry breaking
72
Pairing vibrations
92
Phase transitions
117
Plastic behaviour of nuclei and other finite systems
154
Sources of pairing in nuclei
170
Beyond mean field
204
Appendix B Single particle in a nonlocal potential
292
Particlevibration coupling
299
Appendix E Model of the singleparticle strength function
305
Twoquasiparticle excitations
315
Cranking moment of inertia
322
Appendix J RPA solution of the pairing Hamiltonian
335
Diagonalization of the full Hamiltonian H Ho+H+H
343
Appendix K Vortices in nuclei
349

Induced interaction
219
Pairing in exotic nuclei
257
Appendix A A brief résumé of second quantization
280
Particles and holes
286
Critical velocity for superfluidity
355
References
361
Index
374
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