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Critical Schwinger Pair Production.

Holger Gies1,2, Greger Torgrimsson3

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This summary is machine-generated.

Schwinger pair production near critical points exhibits universal behavior analogous to phase transitions. The electric field

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Area of Science:

  • Quantum Field Theory
  • High-Energy Physics
  • Condensed Matter Physics

Background:

  • Schwinger pair production describes electron-positron pair creation from vacuum by strong electric fields.
  • Spatially inhomogeneous electric fields present complex scenarios for pair production.
  • Understanding critical phenomena in quantum systems is crucial for fundamental physics.

Purpose of the Study:

  • To investigate Schwinger pair production in spatially inhomogeneous electric fields.
  • To identify universal features and critical phenomena associated with the onset of pair production.
  • To explore how electric field design influences scaling laws and critical exponents.

Main Methods:

  • Analysis of Schwinger pair production in inhomogeneous electric backgrounds.
  • Identification of critical points for pair production onset.
  • Characterization of universality classes and scaling laws near critical points.
  • Investigation of the role of electric field large-scale features versus microscopic details.

Main Results:

  • A critical point for pair production onset was identified, analogous to continuous phase transitions.
  • Universality features were observed, with the pair-production rate acting as an order parameter.
  • Electric backgrounds were classified into universality classes exhibiting characteristic scaling laws.
  • The electric field design can interpolate between different types of scaling laws, including power-law and Berezinskii-Kosterlitz-Thouless-type scaling.
  • Critical exponents depend only on large-scale electric field features, with microscopic details being irrelevant perturbations.

Conclusions:

  • Schwinger pair production in inhomogeneous electric fields displays universal behavior near critical points.
  • The study reveals analogies between pair production and critical phenomena in statistical mechanics.
  • Tailored electric field designs can control the nature of scaling laws and critical exponents governing pair production.