Spirals, vortices, and helicity entanglements in dynamical Sauter-Schwinger pair creation

Abstract

We study helicity correlations of electron-positron pairs created by a homogeneous time-dependent electric field in the Sauter-Schwinger scenario. Our analysis is based on solving the Dirac equation with the Feynman or anti-Feynman boundary conditions, which is equivalent to the scattering matrix approach widely used in high energy physics. Most importantly, both these methods allow to fully account for the helicity (or, more generally, spin) correlations of created particles. The influence of helicity correlations and the carrier-envelope phase of the electric pulse on the properties of topological structures (such as spirals and vortices) in momentum distributions of created particles is investigated. The generation of maximally entangled helicity states is discussed and the possibility of using a short electric pulse as a fast switch between them is indicated.

arXiv comment13 pages, 10 figures

References in corpus (43)

• The electronic properties of graphene
• Theory of Bose-Einstein condensation in trapped gases
• Extremely high-intensity laser interactions with fundamental quantum systems
• Floquet Engineering of Quantum Materials
• Perturbative Quantum Field Theory in the String-Inspired Formalism
• Electron-positron pairs in physics and astrophysics: from heavy nuclei to black holes
• Advances in QED with intense background fields
• Theory and applications of free-electron vortex states
• Charged particle motion and radiation in strong electromagnetic fields
• Worldline Instantons and Pair Production in Inhomogeneous Fields
• Multiple colliding electromagnetic pulses: a way to lower the threshold of $e^{+}{e}^{-}$ pair production from vacuum
• Worldline Instantons II: The Fluctuation Prefactor
• Schwinger pair production in space- and time-dependent electric fields: Relating the Wigner formalism to quantum kinetic theory
• Motion of vortex lines in quantum mechanics
• Parameter estimation with gravitational waves
• Photoinduced valley and electron-hole symmetry breaking in $\alpha$-$T_3$ lattice: The role of a variable Berry phase
• Optimizing the pulse shape for Schwinger pair production
• Theory of Majorana zero modes in unconventional superconductors
• Pair Production in Rotating Electric Fields
• Dynamical Schwinger process in a bifrequent electric field of finite duration: survey on amplification
• On the effect of time-dependent inhomogeneous magnetic fields on the particle momentum spectrum in electron-positron pair production
• On the Quantum Kinetic Approach and the Scattering Approach to Vacuum Pair Production
• Momentum vortices on pairs production by two counter-rotating fields
• Electron-positron pair production in external electric fields varying both in space and time
• Comparison of semiclassical and Wigner function methods in pair production in rotating fields
• On the kinetic equation approach to pair production by time-dependent electric field
• Spin-states in multiphoton pair production for circularly polarized light
• Properties of the electron-positron plasma created from vacuum in a strong laser field. Quasiparticle excitations
• Momentum spirals in multiphoton pair production revisited
• Diffraction at a time grating in electron-positron pair creation from vacuum
• Spin-dependent dynamically assisted Schwinger mechanism
• Collisional strong-field QED kinetic equations from first principles
• Exciton-coherence generation through diabatic and adiabatic dynamics of Floquet state
• Pairwise mode entanglement in Schwinger production of particle-antiparticle pairs in an electric field
• Spacetime-dependent electric field effects in vacuum and plasma using the Wigner-formalism
• Worldline instantons for the momentum spectrum of Schwinger pair production in space-time dependent fields
• Schwinger effect of a relativistic boson entangled with a qubit
• Carrier-envelope-phase and helicity control of electron vortices in photodetachment
• Kinetic theory of vacuum pair production in uniform electric fields revisited
• Floquet theory and computational method for the optical absorption of laser-dressed solids
• Floquet engineering spin triplet states in unconventional magnets
• Threshold effects in electron-positron pair creation from the vacuum: Stabilization and longitudinal vs transverse momentum sharing
• Vortex Structures and Momentum Sharing in Dynamic Sauter-Schwinger Process