Competing color superconductivity and color Kondo effect in quark matter
Pradip Kattel, Abay Zhakenov, Natan Andrei
DOI 10.1103/q6kz-2vl2 · Physical Review D
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The competition between bulk color superconductivity and the localized screening of a heavy quark impurity, analogous to the Kondo effect, leads to a rich spectrum of phenomena in dense quark matter. We investigate this competition at the edge of a superconducting quark bulk, where both the superconducting gap and the Kondo scale are dynamically generated in a tractable toy model. Utilizing the exact Bethe Ansatz method, we elucidate the resulting boundary physics. We identify distinct regimes characterized by either multiparticle Kondo screening or an unscreened local moment. Crucially, we also uncover a novel intermediate phase featuring impurity screening through a single-particle bound state formed within the superconducting gap. The toy model presented in this work highlights the complex interplay between dynamically generated bulk properties and boundary impurities in extreme quantum chromodynamics environments, offering potential insights into phenomena occurring in heavy-ion collisions and compact stars.
Similar papers
Kondo impurity at the edge of a superconducting wire
similarity 0.89Parameshwar R. Pasnoori et al.
Source status unknown — claims are unverified
Dimer-induced heavy-fermion superconductivity in the Shastry-Sutherland Kondo lattice model
similarity 0.89Lei Su & Pinaki Sengupta
Source status unknown — claims are unverified
Kondo screening in d-wave superconductors in a Zeeman field and implications for STM spectra of Zn-doped cuprates
similarity 0.88Matthias Vojta et al.
Source status unknown — claims are unverified
Charge Kondo effect and superconductivity in the Falikov-Kimball model with pair hopping
similarity 0.87Ryu Shinzaki et al.
Source status unknown — claims are unverified
Superfluid density in the slave-boson theory
similarity 0.87Yin Zhong et al. · 2015 · arXiv:1503.02759
Source status unknown — claims are unverified
Proposal for Detection of the 0′ and π′ Phases in Quantum-Dot Josephson Junctions
similarity 0.86Minchul Lee et al.
Source status unknown — claims are unverified