Electron-Positron Vacuum Instability in Strong Electric Fields. Relativistic Semiclassical Approach

Voskresensky, D. N.

doi:10.3390/universe7040104

Cited by 14 publications

(9 citation statements)

References 74 publications

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“…We emphasise that this logarithmic enhancement arises from the previously neglected 1PR diagram, which was only recently found to yield the non-vanishing contribution (134) [110]. For completeness, we note that subsequently analogous 1PR tadpole corrections have been evaluated for the charged particle propagator [503,504,505] and photon-graviton conversion [506] in a constant field at one loop, the lowenergy limit of the QED N -photon amplitudes at two loops [507], and arbitrary processes in constant fields [433]; see also [508]. Interestingly, all physical tadpole contributions vanish identically in constant crossed and plane-wave fields due to the special field and momentum structure of these backgrounds [110,509,150].…”

Section: Weak and Strong Field Limitsmentioning

confidence: 79%

Advances in QED with intense background fields

Fedotov¹,

Ilderton²,

Karbstein³

et al. 2022

Preprint

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Upcoming and planned experiments combining increasingly intense lasers and energetic particle beams will access new regimes of nonlinear, relativistic, quantum effects. This improved experimental capability has driven substantial progress in QED in intense background fields. We review here the advances made during the last decade, with a focus on theory and phenomenology. As ever higher intensities are reached, it becomes necessary to consider processes at higher orders in both the number of scattered particles and the number of loops, and to account for non-perturbative physics (e.g. the Schwinger effect), with extreme intensities requiring resummation of the loop expansion. In addition to increased intensity, experiments will reach higher accuracy, and these improvements are being matched by developments in theory such as in approximation frameworks, the description of finite-size effects, and the range of physical phenomena analysed. Topics on which there has been substantial progress include: radiation reaction, spin and polarisation, nonlinear quantum vacuum effects and connections to other fields including physics beyond the Standard Model.

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Section: Weak and Strong Field Limitsmentioning

confidence: 79%

Advances in QED with intense background fields

Fedotov¹,

Ilderton²,

Karbstein³

et al. 2022

Preprint

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show abstract

“…also ref. [28]. The corresponding fully non-perturbative result not relying on a loop expansion could be extracted along the lines outlined below eq.…”

Section: 27)mentioning

confidence: 99%

Large N external-field quantum electrodynamics

Karbstein

2022

J. High Energ. Phys.

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We advocate the study of external-field quantum electrodynamics with N charged particle flavors. Our main focus is on the Heisenberg-Euler effective action for this theory in the large N limit which receives contributions from all loop orders. The contributions beyond one loop stem from one-particle reducible diagrams. We show that specifically in constant electromagnetic fields the latter are generated by the one-loop Heisenberg-Euler effective Lagrangian. Hence, in this case the large N Heisenberg-Euler effective action can be determined explicitly at any desired loop order. We demonstrate that further analytical insights are possible for electric-and magnetic-like field configurations characterized by the vanishing of one of the secular invariants of the electromagnetic field and work out the all-orders strong field limit of the theory.

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“…The creation of particles by an electric field in curved spacetime is an active research field and continue to attract attentions as in the cosmological models of an expanding universe [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. On the other hand, the creation of particles by the Coulomb potential of an external electric field is a topic that has received a special interest [4,[17][18][19][20][21][22] and the references cited in the three relevant reviews [23][24][25]. Moreover, particle production under the effect of topological defects has been also discussed in the literature, like in the field of a magnetic monopole and domain walls [26,27], and in the presence of a cosmic string [28][29][30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Influence of a cosmic string on the rate of pairs produced by the Coulomb potential

Bounames¹

2022

Preprint

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We study particle creation phenomenon by the Coulomb potential of an external electric field in the presence of a gravitational field of a static cosmic string. For that, the generalized Klein-Gordon and Dirac equations are solved, and by using the Bogoliubov transformation we calculate the probability and the number density of created particles. Then, we discuss the influence of the cosmic string on the rate of pairs produced by the Coulomb potential. For the grand unified theory (GUT) cosmic string, the production of spinless particles is possible if the Coulomb potential nucleus charge Z ≥ 206, and for spin-1/2 particles if Z ≥ 275.

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Electron-Positron Vacuum Instability in Strong Electric Fields. Relativistic Semiclassical Approach

Cited by 14 publications

References 74 publications

Advances in QED with intense background fields

Advances in QED with intense background fields

Large N external-field quantum electrodynamics

Influence of a cosmic string on the rate of pairs produced by the Coulomb potential

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