TY - JOUR

T1 - Calculating the photonic condensate in perturbative QED

AU - Vainshtein, A.

AU - Zakharov, V.

N1 - Funding Information:
Work supported in part by Schwelzerlscher Natlonalfonds Permanent address Instztute of Nuclear Physics, 630 090 Novoslblrsk, USSR

PY - 1989/7/27

Y1 - 1989/7/27

N2 - We consider the vacuum expectation value 〈0|Fμv2|0〉, where Fμv is the electromagnetic field strength tensor, and use the point splitting technique to regularize the calculation. Then 〈0|Fμv2|0〉 turns out to vanish in one-loop approximation. In higher orders the vacuum expectation value appears to be divergent but calculable in term s of the β-function within the regularization scheme specified.

AB - We consider the vacuum expectation value 〈0|Fμv2|0〉, where Fμv is the electromagnetic field strength tensor, and use the point splitting technique to regularize the calculation. Then 〈0|Fμv2|0〉 turns out to vanish in one-loop approximation. In higher orders the vacuum expectation value appears to be divergent but calculable in term s of the β-function within the regularization scheme specified.

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U2 - 10.1016/0370-2693(89)90593-5

DO - 10.1016/0370-2693(89)90593-5

M3 - Article

AN - SCOPUS:0001763427

SN - 0370-2693

VL - 225

SP - 415

EP - 418

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4

ER -