Assisted dynamical Schwinger effect: pair production in a pulsed bifrequent field

In this paper, we consider a deformed AdS background and study the effect of deformation parameter on the pair production rate of the Schwinger effect. The electrostatic potential is important for the pair production in the holographic Schwinger effect. In this paper, we analyze the electrostatic potential in a deformed AdS background and investigate the effect of deformation parameter which may be useful to test the AdS/QCD. In the case of zero temperature, we find that the larger value of the deformation parameter leads to a smaller value of separation length of the test particles on the probe. Also, we find a finite maximum of separation length in the presence of modification parameter.

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THE SEARCH FOR THE SCHWINGER EFFECT: NONPERTURBATIVE VACUUM PAIR PRODUCTION

Quantum Field Theory Under the Influence of External Conditions (QFEXT09) ◽

10.1142/9789814289931_0060 ◽

2010 ◽

Author(s):

GERALD V. DUNNE

Keyword(s):

Pair Production ◽

Schwinger Effect

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A holographic description of the Schwinger effect in a confining gauge theory

International Journal of Modern Physics A ◽

10.1142/s0217751x15300264 ◽

2015 ◽

Vol 30 (11) ◽

pp. 1530026 ◽

Cited By ~ 19

Author(s):

Daisuke Kawai ◽

Yoshiki Sato ◽

Kentaroh Yoshida

Keyword(s):

Pair Production ◽

Production Rate ◽

Electric Fields ◽

String Tension ◽

Critical Value ◽

Remarkable Feature ◽

Coulomb Phase ◽

Holographic Approach ◽

Schwinger Effect ◽

Holographic Description

This is a review of the recent progress on a holographic description of the Schwinger effect. In 2011, Semenoff and Zarembo proposed a scenario to study the Schwinger effect in the context of the AdS/CFT correspondence. The production rate of quark–antiquark pairs was computed in the Coulomb phase. In particular, it provided the critical value of external electric field, above which particles are freely created and the vacuum decays catastrophically. Then the potential analysis in the holographic approach was invented and it enabled us to study the Schwinger effect in the confining phase as well. A remarkable feature of the Schwinger effect in the confining phase is to exhibit another kind of the critical value, below which the pair production cannot occur and the vacuum of the system is nonperturbatively stable. The critical value is tantamount to the confining string tension. We computed the pair production rate numerically and introduced new exponents associated with the critical electric fields.

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THE SEARCH FOR THE SCHWINGER EFFECT: NONPERTURBATIVE VACUUM PAIR PRODUCTION

International Journal of Modern Physics A ◽

10.1142/s0217751x10049657 ◽

2010 ◽

Vol 25 (11) ◽

pp. 2373-2381 ◽

Cited By ~ 7

Author(s):

GERALD V. DUNNE

Keyword(s):

Electric Field ◽

Pair Production ◽

External Electric Field ◽

High Intensity ◽

Laser Pulses ◽

New Developments ◽

Electron Positron ◽

Relativistic Regime ◽

Schwinger Effect ◽

Intensity Regime

The Schwinger effect is the non-perturbative production of electron-positron pairs when an external electric field is applied to the quantum electrodynamical (QED) vacuum. The inherent instability of the vacuum in an electric field was one of the first non-trivial predictions of QED, but the effect is so weak that it has not yet been directly observed. However, there are exciting new developments in ultra-high intensity lasers, which may bring us to the verge of this extreme ultra-relativistic regime. This necessitates a fresh look at both experimental and theoretical aspects of the Schwinger effect. I describe some new theoretical ideas aimed at making this elusive effect observable, by careful shaping of the laser pulses, much as is done [in a different intensity regime] in the fast-developing field of atto-science.

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Holographic Description of Noncommutative Schwinger Effect

Advances in High Energy Physics ◽

10.1155/2021/6648322 ◽

2021 ◽

Vol 2021 ◽

pp. 1-16

Author(s):

Udit Narayan Chowdhury

Keyword(s):

Electric Field ◽

Pair Production ◽

Production Rate ◽

External Electric Field ◽

Deformation Parameter ◽

Yang Mills ◽

First Order ◽

Schwinger Effect ◽

Holographic Description

We consider the phenomenon of spontaneous pair production in the presence of an external electric field for noncommutative Yang-Mills theories. Using Maldacena’s holographic conjecture, the threshold electric field for pair production is computed from the quark/antiquark potential for noncommutative theories. As an effect of noncommutativity, the threshold electric field is seen to be smaller than its commutative counterpart. We also estimate the correction to the production rate of quark/antiquark pairs to the first order of the noncommutative deformation parameter. Our result bears resemblance with an earlier related work (based on field-theoretic methods).

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Holographic Schwinger Effect in a Confining D3-Brane Background with Chemical Potential

Advances in High Energy Physics ◽

10.1155/2016/9258106 ◽

2016 ◽

Vol 2016 ◽

pp. 1-7

Author(s):

Zi-qiang Zhang ◽

De-fu Hou ◽

Yan Wu ◽

Gang Chen

Keyword(s):

Electric Field ◽

Pair Production ◽

Numerical Method ◽

Production Rate ◽

External Electric Field ◽

Critical Field ◽

Test Particle ◽

Chemical Potential ◽

Particle Pair ◽

Schwinger Effect

Using the AdS/CFT correspondence, we investigate the Schwinger effect in a confining D3-brane background with chemical potential. The potential between a test particle pair on the D3-brane in an external electric field is obtained. The critical fieldEcin this case is calculated. Also, we apply numerical method to evaluate the production rate for various cases. The results imply that the presence of chemical potential tends to suppress the pair production effect.

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Holographic Schwinger effect in the confining background with D-instanton

The European Physical Journal C ◽

10.1140/epjc/s10052-021-09607-6 ◽

2021 ◽

Vol 81 (9) ◽

Author(s):

Si-wen Li

Keyword(s):

Electric Field ◽

Pair Production ◽

Decay Rate ◽

Temperature Limit ◽

Simons Theory ◽

Total Potential ◽

Fundamental String ◽

Schwinger Effect ◽

Gauge Gravity ◽

Chern Simons

AbstractUsing the gauge-gravity duality, we study the holographic Schwinger effect by performing the potential analysis on the confining D3- and D4-brane background with D-instantons then evaluate the pair production/decay rate by taking account into a fundamental string and a single flavor brane respectively. The two confining backgrounds with D-instantons are obtained from the black D(-1)–D3 and D0–D4 solution with a double Wick rotation. The total potential and pair production/decay rate in the Schwinger effect are calculated numerically by examining the NG action of a fundamental string and the DBI action of a single flavor brane all in the presence of an electric field. In both backgrounds our numerical calculation agrees with the critical electric field evaluated from the DBI action and shows the potential barrier is increased by the presence of the D-instantons, thus the production/decay rate is suppressed by the D-instantons. The interpretation is that particles in the dual field theory could acquire an effective mass through the Chern-Simons interaction or the theta term due to the presence of D-instantons so that the pair production/decay rate in Schwinger effect is suppressed since it behaves as $$e^{-m^{2}}$$ e - m 2 . This conclusion is in agreement with the previous results obtained in the deconfined D(-1)–D3 background at zero temperature limit and from the approach of the flavor brane in the D0–D4 background. In this sense, this work may be also remarkable to study the phase transition in Maxwell–Chern–Simons theory and observable effects by the theta angle in QCD.

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