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Phys. Rev. D 66, 014004 (2002) [6 pages]

QCD vacuum structure in strong magnetic fields

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Daniel Kabat *
Department of Physics, Columbia University, New York, New York 10027

Kimyeong Lee †
Department of Physics, Columbia University, New York, New York 10027
School of Physics, Korea Institute for Advanced Study, Cheongryangri-Dong, Dongdaemun-Gu, Seoul 130-012, Korea

Erick Weinberg ‡
Department of Physics, Columbia University, New York, New York 10027

Received 30 April 2002; published 8 July 2002

We study the response of the QCD vacuum to strong magnetic fields, using a potential model for the quark-antiquark interaction. We find that production of spin-polarized uū pairs is energetically favorable for fields B>Bcrit∼10 GeV2. We contrast the resulting uū condensate with the quark condensate which is present at zero magnetic field, and we estimate the corresponding magnetization as a function of B.


©2002 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.66.014004
DOI: 10.1103/PhysRevD.66.014004
PACS: 12.38.-t, 12.39.Pn

* Electronic mail: kabat@phys.columbia.edu
† Electronic mail: klee@kias.re.kr
‡ Electronic mail: ejw@phys.columbia.edu

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