Overscreened Kondo effect, (color) superconductivity, and Shiba states in Dirac metals and quark matter

@article{Kanazawa2016OverscreenedKE,
  title={Overscreened Kondo effect, (color) superconductivity, and Shiba states in Dirac metals and quark matter},
  author={Takuya Kanazawa and Shun Uchino},
  journal={Physical Review D},
  year={2016},
  volume={94},
  pages={114005}
}
We study the interplay between the Kondo effect and (color) superconductivity in doped Dirac metals with magnetic impurities and in quark matter with colorful impurities. We first point out that the overscreened Kondo effect arises in the normal state of these systems. Next the (color) superconducting gap is incorporated as a mean field and the phase diagram for a varying gap and temperature is constructed nonperturbatively. A rich phase structure emerges from a competition of effects unique to… 

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References

SHOWING 1-10 OF 117 REFERENCES

Bose–Einstein Condensation of Collective Electron Pairs

Among quantum phenomena in solids at low temperatures, the superconductivity and Bose–Einstein condensation (BEC) are representatives of arising from coherent macroscopic quantum states. In this

The Kondo Problem To Heavy Fermions

The the kondo problem to heavy fermions is universally compatible with any devices to read and available in the book collection an online access to it is set as public so you can download it instantly.

The Physics of Dilute Magnetic Alloys

1. Atoms 2. Molecules 3. The Sommerfeld theory of metals 4. Band theory 5. Magnetic impurities in metals 6. The infrared divergence in metals 7. Wilson's theory 8. Exact solution to the s-d problem

An Introduction to Quantum Field Theory

HEAVY QUARK PHYSICS

Various aspects of the physics of heavy quarks and of CP violation are reviewed.

France 41

  • 193
  • 1980

Phys

  • Rev. D92, 065003
  • 2015

Phys

  • Rev. B 54, 11936
  • 1996

Phys

  • Rev. Lett. 64, 1835
  • 1990

Journal of Physics: Condensed Matter 9

  • 10463
  • 1997
...