Physics Letters B 541 (2002) 411
www.elsevier.com/locate/npe
Erratum
Erratum to: “On analytic properties of the photon polarization
function in a background magnetic field”
[Phys. Lett. B 522 (2001) 257]
✩
W.F. Kao, Guey-Lin Lin, Jie-Jun Tseng
Institute of Physics, National Chiao Tung University, Hsinchu 300, Taiwan Received 12 July 2002
In our Letter, Eq. (33) should be corrected. The corrected equation reads:
Re
Π
ω
2, q
2=
P
π
∞ 1dt
Im
Π
(t, q
2)
t
− ω
2,
where the dimensionless function
Π
(ω
2, q
2) is related to Π
(ω
2, q
x2) by
Π
ω
2, q
x2= −
α
eω
2/4π
Π
ω
2, q
2,
as has been shown in Eq. (9). The error in Eq. (33) does not affect the results of our Letter.
✩ PII of original article: S0370-2693(01)01296-5.
E-mail address: [email protected] (G.-L. Lin).
0370-2693/02/$ – see front matter 2002 Published by Elsevier Science B.V. PII: S 0 3 7 0 - 2 6 9 3 ( 0 2 ) 0 2 3 1 1 - 0