scholarly journals Competition of inhomogeneous chiral phases and two-flavor color superconductivity in the NJL model

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
Phillip Lakaschus ◽  
Michael Buballa ◽  
Dirk H. Rischke
Keyword(s):  
Color Superconductivity ◽  
Chiral Phases ◽  
Njl Model

scholarly journals COLOR SUPERCONDUCTIVITY FROM SUPERSYMMETRY

2005 ◽  
Vol 20 (20) ◽  
pp. 1495-1502 ◽  
Author(s):  
NOBUHITO MARU ◽  
MOTOI TACHIBANA
Keyword(s):  
Chemical Potential ◽  
Critical Value ◽  
Composite Model ◽  
Color Superconductivity

A supersymmetric composite model of color superconductivity is proposed. Quarks and diquarks are dynamically generated as composite fields by a newly introduced strong gauge dynamics. It is shown that the condensation of the scalar component of the diquark supermultiplet occurs when the chemical potential becomes larger than some critical value. We believe that the model captures well the aspects of the diquark condensate behavior and helps in understanding the diquark dynamics in real QCD. The results obtained here might be useful when we consider a theory composed of quarks and diquarks.

scholarly journals Processes e+e− → π0(π0′) γ in extended NJL model

2011 ◽  
Vol 47 (9) ◽  
Author(s):  
A. B. Arbuzov ◽  
E. A. Kuraev ◽  
M. K. Volkov
Keyword(s):  
Njl Model

scholarly journals Critical behaviors near the (tri-)critical end point of QCD within the NJL model

2015 ◽  
Vol 75 (10) ◽  
Author(s):  
Ya Lu ◽  
Yi-Lun Du ◽  
Zhu-Fang Cui ◽  
Hong-Shi Zong
Keyword(s):  
End Point ◽  
Njl Model

scholarly journals ε-EXPANSION IN QUANTUM FIELD THEORY IN CURVED SPACE–TIME

1998 ◽  
Vol 13 (16) ◽  
pp. 2857-2874
Author(s):  
IVER H. BREVIK ◽  
HERNÁN OCAMPO ◽  
SERGEI ODINTSOV
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Space Time ◽  
Quantum Field ◽  
Curved Space ◽  
Njl Model ◽  
Effective Lagrangian ◽  
Special Solutions ◽  
Curvature Approximation ◽  
Symmetric Phase

We discuss ε-expansion in curved space–time for asymptotically free and asymptotically nonfree theories. The existence of stable and unstable fixed points is investigated for fϕ4 theory and SU(2) gauge theory. It is shown that ε-expansion maybe compatible with aysmptotic freedom on special solutions of the RG equations in a special ase (supersymmetric theory). Using ε-expansion RG technique, the effective Lagrangian for covariantly constant gauge SU(2) field and effective potential for gauged NJL model are found in (4-ε)-dimensional curved space (in linear curvature approximation). The curvature-induced phase transitions from symmetric phase to asymmetric phase (chromomagnetic vacuum and chiral symmetry broken phase, respectively) are discussed for the above two models.

scholarly journals Thermal conductivity in 3D NJL model under external magnetic field

2003 ◽  
Vol 33 (4) ◽  
pp. 397-411 ◽  
Author(s):  
E. J. Ferrer ◽  
V. P. Gusynin ◽  
V. de la Incera
Keyword(s):  
Magnetic Field ◽  
Thermal Conductivity ◽  
External Magnetic Field ◽  
Njl Model
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