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On the Schwinger limit attainability with extreme power lasers

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Probability of pair creation<br />

2 2 3<br />

3/ 2<br />

3 e me c <br />

8 <br />

|| 3 for <br />

32 2 3<br />

<br />

<br />

W ( ) exp 1<br />

<br />

7<br />

2 2 3<br />

2/3<br />

27 (2 / 3) e m 3 e c <br />

<br />

|| <br />

5 3 for <br />

56 2<br />

W ( ) 1<br />

<br />

The number of absorbed laser photons:<br />

N a<br />

0 0<br />

Photon mean - free -path before <strong>the</strong> pair is created: lm..<br />

f p 220<br />

l<br />

<br />

0.2<br />

a a<br />

H. Reiss, J. Math. Phys. 3, 59 (1962)<br />

A. I. Nikishov, and V. I. Ritus, „Interaction of Electrons and Photons <strong>with</strong> a Very Strong Electromagnetic Field‟, Sov. Phys. Usp. 13, 303 (1970)<br />

V. I. Ritus, „Quantum Effects of <strong>the</strong> Interaction of Elementary Particles <strong>with</strong> an Intense Electromagnetic Field‟, Tr. Fiz. Inst. Akad. Nauk SSSR 111, 5 (1979)<br />

K. T. McDonald, “Fundamental Physics During Violent Acceleration”, AIP Conf. Proceed. 130, 23 (1985)

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