Dynamically assisted Schwinger mechanism

Abstract

We study electron-positron pair creation {from} the Dirac vacuum induced by a strong and slowly varying electric field (Schwinger effect) which is superimposed by a weak and rapidly changing electromagnetic field (dynamical pair creation). In the sub-critical regime where both mechanisms separately are strongly suppressed, their combined impact yields a pair creation rate which is {dramatically} enhanced. Intuitively speaking, the strong electric field lowers the threshold for dynamical particle creation -- or, alternatively, the fast electromagnetic field generates additional seeds for the Schwinger mechanism. These findings could be relevant for planned ultra-high intensity lasers.

4 pages, 2 figures

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Cited by in corpus (214)

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• Lifting shell structures in the dynamically assisted Schwinger effect in periodic fields
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• Optimization of Schwinger pair production in colliding laser pulses
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• Spectra of Particles from Laser-Induced Vacuum Decay
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• Operational realization of quantum vacuum ambiguities
• Magnetic Field and Curvature Effects on Pair Production I: Scalars and Spinors
• Spontaneous generation of spin current from the vacuum by strong electric fields
• Spectral representation of the particle production out of equilibrium - Schwinger mechanism in pulsed electric fields
• Effect of symmetrical frequency chirp on pair production
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• Backreaction effect and plasma oscillation in pair production for rapidly oscillating electric fields
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• Response of the QED(2) Vacuum to a Quench: Long-term Oscillations of the Electric Field and the Pair Creation Rate
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• Evolution of chirality in a multiphoton pair production process
• Euclidean mirrors: enhanced vacuum decay from reflected instantons
• Pair production in inhomogeneous electric fields with phase modulation
• Schwinger Pair Production in Solitonic Gauge Fields
• Chiral anomaly in a (1+1)-dimensional Floquet system under high-frequency electric fields
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• Relativistic Quantum Kinetic Theory: Higher order contributions in assisted Schwinger pair production
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• Plasma Physics in Strong Field Regimes
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• Vacuum instability in Kaluza-Klein manifolds
• Access to Klein Tunneling via Space-Time Modulation
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• Study on axial fields in the dynamically assisted Schwinger effect
• Momentum spectra of particles produced in a single pulse of an electric field
• Nonadiabatic quantum kinetic equations and Dirac-Heisenberg-Wigner formalism for Schwinger pair production in time-varying electric fields with multiple components
• Dynamically assisted pair production in subcritical potential step and particle--anti-particle interpretations
• Geometric Effects on Tunneling in Driven Quantum Systems
• Effect of super-Gaussian pulse shape on pair production in chirped electric field with spatial inhomogeneity
• Bound-free electron-positron pair production in combined Coulomb and constant crossed electromagnetic fields: a Schwinger-like process with intrinsic assistance
• Unitary quantization of a charged scalar field and Schwinger effect