Abstract
The chiral Gross-Neveu model or equivalently the linearized Bogoliubov-de Gennes equation has been mapped to the nonlinear Schrödinger (NLS) hierarchy in the Ablowitz-Kaup-Newell-Segur formalism by Correa, Dunne and Plyushchay. We derive the general expression for exact fermionic solutions for all gap functions in the arbitrary order of the NLS hierarchy. We also find that the energy spectrum of the n-th NLS hierarchy generally has n+. 1 gaps. As an illustration, we present the self-consistent two-complex-kink solution with four real parameters and two fermion bound states. The two kinks can be placed at any position and have phase shifts. When the two kinks are well separated, the fermion bound states are localized around each kink in most parameter region. When two kinks with phase shifts close to each other are placed at distance as short as possible, the both fermion bound states have two peaks at the two kinks, i.e., the delocalization of the bound states occurs.
| Original language | English |
|---|---|
| Pages (from-to) | 632-637 |
| Number of pages | 6 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 718 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2012 Dec 5 |
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Keywords
- AKNS formalism
- Bogoliubov-de Gennes equation
- Chiral Gross-Neveu model
- Nonlinear Schrödinger hierarchy
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Fermionic solutions of chiral Gross-Neveu and Bogoliubov-de Gennes systems in nonlinear Schrödinger hierarchy. / Takahashi, Daisuke A.; Tsuchiya, Shunji; Yoshii, Ryosuke; Nitta, Muneto.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 718, No. 2, 05.12.2012, p. 632-637.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fermionic solutions of chiral Gross-Neveu and Bogoliubov-de Gennes systems in nonlinear Schrödinger hierarchy
AU - Takahashi, Daisuke A.
AU - Tsuchiya, Shunji
AU - Yoshii, Ryosuke
AU - Nitta, Muneto
PY - 2012/12/5
Y1 - 2012/12/5
N2 - The chiral Gross-Neveu model or equivalently the linearized Bogoliubov-de Gennes equation has been mapped to the nonlinear Schrödinger (NLS) hierarchy in the Ablowitz-Kaup-Newell-Segur formalism by Correa, Dunne and Plyushchay. We derive the general expression for exact fermionic solutions for all gap functions in the arbitrary order of the NLS hierarchy. We also find that the energy spectrum of the n-th NLS hierarchy generally has n+. 1 gaps. As an illustration, we present the self-consistent two-complex-kink solution with four real parameters and two fermion bound states. The two kinks can be placed at any position and have phase shifts. When the two kinks are well separated, the fermion bound states are localized around each kink in most parameter region. When two kinks with phase shifts close to each other are placed at distance as short as possible, the both fermion bound states have two peaks at the two kinks, i.e., the delocalization of the bound states occurs.
AB - The chiral Gross-Neveu model or equivalently the linearized Bogoliubov-de Gennes equation has been mapped to the nonlinear Schrödinger (NLS) hierarchy in the Ablowitz-Kaup-Newell-Segur formalism by Correa, Dunne and Plyushchay. We derive the general expression for exact fermionic solutions for all gap functions in the arbitrary order of the NLS hierarchy. We also find that the energy spectrum of the n-th NLS hierarchy generally has n+. 1 gaps. As an illustration, we present the self-consistent two-complex-kink solution with four real parameters and two fermion bound states. The two kinks can be placed at any position and have phase shifts. When the two kinks are well separated, the fermion bound states are localized around each kink in most parameter region. When two kinks with phase shifts close to each other are placed at distance as short as possible, the both fermion bound states have two peaks at the two kinks, i.e., the delocalization of the bound states occurs.
KW - AKNS formalism
KW - Bogoliubov-de Gennes equation
KW - Chiral Gross-Neveu model
KW - Nonlinear Schrödinger hierarchy
UR - http://www.scopus.com/inward/record.url?scp=84869886917&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869886917&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2012.10.058
DO - 10.1016/j.physletb.2012.10.058
M3 - Article
AN - SCOPUS:84869886917
VL - 718
SP - 632
EP - 637
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 2
ER -