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FIZIKA B 11 (2002) 2, 63-72
 
ON A NOVEL REGULARIZATION SCHEME
DEBNARAYAN JANA
Department of Physics, University College of Science and Technology, 92
A. P. C. Road, Calcutta 700 009, W. B., India
E-mail address: [email protected]
Received 22 February 2002; Accepted 10 October 2002
Online 7 February 2003
We develop the mode-matching regularization scheme particularly suitable for problems
in a uniform magnetic field. We apply this regularization scheme to bare QED vacuum in
(2+1) dimensions. This regularization scheme gives the exact renormalization of the bare
QED vacuum and establishes its diamagnetic nature.
PACS numbers: 11.10.Wx, 05.30.Jp
UDC 537.8
Keywords: regularization, QED vacuum, diamagnetism
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