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

Racah Institute of Physics

The Hebrew University of Jerusalem

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

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

Keywords

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

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.physletb.2011.10.024

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title = "Effect of a fermion on quantum phase transitions in bosonic systems",

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.",

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

author = "F. Iachello and A. Leviatan and D. Petrellis",

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 .",

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T1 - Effect of a fermion on quantum phase transitions in bosonic systems

AU - Iachello, F.

AU - Leviatan, A.

AU - Petrellis, D.

N1 - 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 .

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Y1 - 2011/11/17

N2 - 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.

AB - 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.

KW - Algebraic models

KW - Bose-Fermi systems

KW - Interacting boson-fermion model (IBFM)

KW - Quantum shape-phase transitions

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DO - 10.1016/j.physletb.2011.10.024

M3 - مقالة

SN - 0370-2693

VL - 705

SP - 379

EP - 382

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4

ER -

Effect of a fermion on quantum phase transitions in bosonic systems

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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