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APS » Journals » Phys. Rev. Lett. » Volume 86 » Issue 18
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Phys. Rev. Lett. 86, 3955–3958 (2001)

Domain Walls of High-Density QCD

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D. T. Son1,4, M. A. Stephanov2,4, and A. R. Zhitnitsky3
1Physics Department, Columbia University, New York, New York 10027
2Department of Physics, University of Illinois, Chicago, Illinois 60607-7059
3Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
4RIKEN-BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973

Received 17 December 2000; published in the issue dated 30 April 2001

We show that in very dense quark matter there must exist metastable domain walls where the axial U(1) phase of the color-superconducting condensate changes by 2π. The decay rate of the domain walls is exponentially suppressed and we compute it semiclassically. We give an estimate of the critical chemical potential above which our analysis is under theoretical control.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.3955
DOI:
10.1103/PhysRevLett.86.3955
PACS:
11.27.+d, 12.38.Mh
 
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