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  • 1Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany.

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This study reveals a two-stage string breaking process in quantum electrodynamics. Multiple string breaking occurs with dynamical charges, unlike static charges in traditional setups.

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Area of Science:

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

Background:

  • * String breaking is a fundamental process in quantum field theories.
  • * Understanding real-time dynamics is crucial for describing particle creation and screening.
  • * Traditional studies often focus on static external charges.

Purpose of the Study:

  • * To investigate the real-time dynamics of string breaking in (1+1)-dimensional quantum electrodynamics.
  • * To analyze the two-stage process involving pair creation and charge separation.
  • * To explore multiple string breaking using dynamical, separating charges.

Main Methods:

  • * Theoretical analysis of quantum electrodynamics in one spatial dimension.
  • * Simulation of real-time evolution of fermion-antifermion pairs.
  • * Examination of charge screening mechanisms.

Main Results:

  • * Identified a distinct two-stage mechanism for string breaking.
  • * Observed clear separation in time and energy scales for pair creation and screening.
  • * Demonstrated multiple string breaking phenomena with receding charges.

Conclusions:

  • * The study elucidates the complex dynamics of string breaking in real-time.
  • * Dynamical charges lead to novel phenomena like multiple string breaking.
  • * Findings contribute to a deeper understanding of fundamental quantum field theory processes.