922 citations
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Showing 1997Show all
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gr-qc1997
Quantum Fluctuations of Scalar Field in Conical Space
Chung-I Kuo
We consider vacuum polarization effect of a conformally coupled massless scalar field in the background produced by an idealized straight cosmic string. Using previous criterion we…
hep-th1997★ 122 cited
Chiral Symmetry Breaking in a Uniform External Magnetic Field
D. -S. Lee, C. N. Leung, Y. J. Ng
Using the nonperturbative Schwinger-Dyson equation, we show that chiral symmetry is dynamically broken in QED at weak couplings when an external magnetic field is present, and that…