Effects of finite spatial extent on Schwinger pair production
arXiv:1905.01629 · doi:10.1103/PhysRevD.100.016003
Abstract
Electron-positron pair production from vacuum in external electric fields with space and time dependencies is studied numerically using real time Dirac-Heisenberg-Wigner formalism. The influence of spatial focusing scale of the electric field on momentum distribution and the total yield of the particles is examined by considering standing wave mode of the electric field with different temporal configurations. With the decrease of spatial extent of the external field, signatures of the temporal field are weaken in the momentum spectrum. Moreover, in the extremely small spatial extent, novel features emerge due to the combined effects of both temporal and spatial variations. We also find that for dynamically assisted particle production, while the total particle yield drops significantly in small spatial extents, the assistance mechanism tends to increase in these highly inhomogeneous regimes, where the slow and fast pulses are affected differently by the overall spatial inhomogeneity.
arXiv comment18 pages, 6 fugures
References in corpus (38)
- Dynamically assisted Schwinger mechanism
- Pair Production from Vacuum at the Focus of an X-Ray Free Electron Laser
- New Strong-Field QED Effects at ELI: Nonperturbative Vacuum Pair Production
- Momentum signatures for Schwinger pair production in short laser pulses with a sub-cycle structure
- Schwinger pair production in space- and time-dependent electric fields: Relating the Wigner formalism to quantum kinetic theory
- The Stokes Phenomenon and Schwinger Vacuum Pair Production in Time-Dependent Laser Pulses
- Schwinger mechanism revisited
- Finite size effects in stimulated laser pair production
- Pair production in laser fields oscillating in space and time
- Interference Effects in Schwinger Vacuum Pair Production for Time-Dependent Laser Pulses
- Pair production in inhomogeneous fields
- Barrier control in tunneling e^+ e^- photoproduction
- Particle self-bunching in the Schwinger effect in spacetime-dependent electric fields
- Momentum Spectra for Dynamically Assisted Schwinger Pair Production
- Ramsey Fringes and Time-domain Multiple-Slit Interference from Vacuum
- Quantum Vacuum Experiments Using High Intensity Lasers
- Simulating fermion production in 1+1 dimensional QED
- Exploring high-intensity QED at ELI
- Multidimensional Worldline Instantons
- Schwinger Vacuum Pair Production in Chirped Laser Pulses
- Dynamically assisted Sauter-Schwinger effect in inhomogeneous electric fields
- Pair Production in Rotating Electric Fields
- Pair production in differently polarized electric fields with frequency chirps
- Momentum vortices on pairs production by two counter-rotating fields
- Spin polarized electron-positron pair production via elliptical polarized laser fields
- Dynamically assisted Schwinger effect beyond the spatially-uniform-field approximation
- Ponderomotive effects in multiphoton pair production
- Momentum distribution of particles created in space-time-dependent colliding laser pulses
- Comparison of semiclassical and Wigner function methods in pair production in rotating fields
- Phase-space analysis of the Schwinger effect in inhomogeneous electromagnetic fields
- Effects of electric field polarizations on pair production
- On the effect of time-dependent inhomogeneous magnetic fields in electron-positron pair production
- Diffraction at a time grating in electron-positron pair creation from vacuum
- Multidimensional quantum tunneling in the Schwinger effect
- Electron-positron pair production in inhomogeneous electromagnetic fields
- Quantum radiation by electrons in lasers and the Unruh effect
- Multi-pair states in electron-positron pair creation
- Vacuum decay and the transmission resonances in space-dependent electric fields
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- Advances in QED with intense background fields
- On the effect of time-dependent inhomogeneous magnetic fields on the particle momentum spectrum in electron-positron pair production
- Momentum spirals in multiphoton pair production revisited
- Schwinger pair production in inhomogeneous electric fields with symmetrical frequency chirp
- Enhanced dynamically assisted pair production in spatial inhomogeneous electric fields with the frequency chirping
- Dynamically assisted Schwinger mechanism and chirality production in parallel electromagnetic field
- Chirp effects on pair production in oscillating electric fields with spatial inhomogeneity
- Boson pair production in arbitrarily polarized electric fields
- Study of pair production in inhomogeneous two-color electric fields using the computational quantum field theory
- Schwinger pair production rate and time for some space-dependent electromagnetic fields via worldline instantons formalism
- Evolution of chirality in a multiphoton pair production process
- Pair production in inhomogeneous electric fields with phase modulation
- Schwinger pair production in spacetime fields: Moiré patterns, Aharonov-Bohm phases and Sturm-Liouville eigenvalues
- Dynamically assisted pair production in subcritical potential step and particle--anti-particle interpretations
- Study on axial fields in the dynamically assisted Schwinger effect
- Effect of super-Gaussian pulse shape on pair production in chirped electric field with spatial inhomogeneity