R4 corrections to holographic Schwinger effect

  • We consider R4 corrections to the holographic Schwinger effect in an AdS black hole background and a confining D3-brane background. The potential between a test particle pair are performed for both backgrounds. We find there is no potential barrier in the critical electric field, which means that the system becomes catastrophically unstable. It is shown that for both backgrounds, increasing the inverse't Hooft coupling parameter 1/λ enhances the Schwinger effect. We also discuss the possible relation between the Schwinger effect and the viscosity-entropy ratio η/s in strong coupling.
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Fei Li, Zi-qiang Zhang and Gang Chen. R4 corrections to holographic Schwinger effect[J]. Chinese Physics C, 2018, 42(12): 123109. doi: 10.1088/1674-1137/42/12/123109
Fei Li, Zi-qiang Zhang and Gang Chen. R4 corrections to holographic Schwinger effect[J]. Chinese Physics C, 2018, 42(12): 123109.  doi: 10.1088/1674-1137/42/12/123109 shu
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Received: 2018-06-15
Revised: 2018-09-07
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    Supported by National Natural Science Foundation of China (11705166, 11475149)

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R4 corrections to holographic Schwinger effect

    Corresponding author: Zi-qiang Zhang,
    Corresponding author: Gang Chen,
  • 1. Physical Department, School of Mathematics and Physics, China University of Geosciences, Wuhan 430074
Fund Project:  Supported by National Natural Science Foundation of China (11705166, 11475149)

Abstract: We consider R4 corrections to the holographic Schwinger effect in an AdS black hole background and a confining D3-brane background. The potential between a test particle pair are performed for both backgrounds. We find there is no potential barrier in the critical electric field, which means that the system becomes catastrophically unstable. It is shown that for both backgrounds, increasing the inverse't Hooft coupling parameter 1/λ enhances the Schwinger effect. We also discuss the possible relation between the Schwinger effect and the viscosity-entropy ratio η/s in strong coupling.

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