Quantum phase transitions in Bose-Fermi systems

Details Quantum phase transitions in Bose-Fermi systems Quantum phase transitions in Bose-Fermi systems

2011-05-08

arxiv.org/abs/1105.1527v1

Ann. Phys. 326 (2011) 926-957

Physics

Nuclear Physics

Nuclear Theory

38 pages, 29 figures

Scientific paper

Quantum phase transitions in a system of N bosons with angular momentum L=0,2 (s,d) and a single fermion with angular momentum j are investigated both classically and quantum mechanically. It is shown that the presence of the odd fermion strongly influences the location and nature of the phase transition, especially the critical value of the control parameter at which the phase transition occurs. Experimental evidence for the U(5)-SU(3) (spherical to axially-deformed) transition in odd-even nuclei is presented.

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