Effect of a fermion on quantum phase transitions in bosonic systems

F. Iachello; A. Leviatan; D. Petrellis

doi:10.1016/j.physletb.2011.10.024

Effect of a fermion on quantum phase transitions in bosonic systems

F. Iachello^*, A. Leviatan, D. Petrellis

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

The effect of a fermion with angular momentum j on quantum phase transitions of a (s, d) bosonic system is investigated. It is shown that the presence of a fermion strongly modifies the critical value at which the transition occurs, and its nature, even for small and moderate values of the coupling constant. The analogy with a bosonic system in an external field is mentioned. Experimental evidence for precursors of quantum phase transitions in bosonic systems plus a fermion (odd-even nuclei) is presented.

Original language	English
Pages (from-to)	379-382
Number of pages	4
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	705
Issue number	4
DOIs	https://doi.org/10.1016/j.physletb.2011.10.024
State	Published - 17 Nov 2011

Bibliographical note

Funding Information:
This work was supported in part under DOE Grant No. DE-FG-02-91ER-40608 and in part by a grant from the U.S.–Israel Binational Science Foundation .

Keywords

Algebraic models
Bose-Fermi systems
Interacting boson-fermion model (IBFM)
Quantum shape-phase transitions

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10.1016/j.physletb.2011.10.024

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AU - Petrellis, D.

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KW - Bose-Fermi systems

KW - Interacting boson-fermion model (IBFM)

KW - Quantum shape-phase transitions

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Effect of a fermion on quantum phase transitions in bosonic systems

Abstract

Bibliographical note

Keywords

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