Ramsey Fringes and Time-Domain Multiple-Slit Interference from Vacuum

Akkermans, Éric; Dunne, Gerald V.

doi:10.1103/physrevlett.108.030401

Cited by 106 publications

(130 citation statements)

References 55 publications

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“…However, the high-intensity and ultrashort laser facilities under construction, such as the Extreme Light Infrastructure [4] and the x-ray free electron laser (XFEL) [5,6], may provide a subcritical electric field which can produce a considerable number of EP pairs [7,8]. This stimulates the researcher renewed interests to explore significant phenomena of EP pair production from vacuum [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effects of electric field polarizations on pair production

Xie

2015

Phys. Rev. D

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The effects of electric field polarizations on pair production from a vacuum are investigated numerically by employing the real-time Dirac-Heisenberg-Wigner formalism. For few-cycle fields, it is found that the interference pattern in momentum spectra is absent and the circular distortion of momentum distribution becomes more apparent with the increase of polarization. For multicycle fields, it is found that the interference effects in momentum spectra are obvious. And as the polarization increases, the momentum distribution is split into two parts in the momentum q y direction first and then two separated parts are connected into a ring. The effects of polarizations on the number density of created particles exhibits two different characteristics. For a small laser frequency, the particle number density deceases with the polarization, while for a large laser frequency, the relation between them is sensitive to the field frequency nonlinearly. Some interpretations for the obtained results in this study, which is expected to be valuable to deepen the understanding of pair production in complex fields and also helpful for the study associated to strong-field ionization.

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Section: Introductionmentioning

confidence: 99%

Effects of electric field polarizations on pair production

Xie

2015

Phys. Rev. D

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“…Unfortunately, the dependence of this non-perturbative phenomenon on the field profile E(t, r) away from the constant field approximation is still mostly terra incognita. There are many results for fields which depend on one coordinate only, such as space x or time t (see, e.g., [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]), one of the light-cone coordinates x ± = t ± x (see, e.g., [21][22][23][24][25][26][27][28]), or other linear combinations of x and t [29]. In these cases, the underlying (Dirac or Klein-Fock-Gordon) equation simplifies to an ordinary differential equation (allowing for a WKB approach, for example, see also [30][31][32][33][34]).…”

Section: Introductionmentioning

confidence: 99%

Dynamically assisted Sauter-Schwinger effect in inhomogeneous electric fields

Schneider

Schützhold

2016

J. High Energ. Phys.

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Via the world-line instanton method, we study electron-positron pair creation by a strong (but sub-critical) electric field of the profile E/ cosh 2 (kx) superimposed by a weaker pulse E / cosh 2 (ωt). If the temporal Keldysh parameter γ ω = mω/(qE) exceeds a threshold value γ crit ω which depends on the spatial Keldysh parameter γ k = mk/(qE), we find a drastic enhancement of the pair creation probability -reporting on what we believe to be the first analytic non-perturbative result for the interplay between temporal and spatial field dependences E(t, x) in the Sauter-Schwinger effect. Finally, we speculate whether an analogous effect (drastic enhancement of tunneling probability) could occur in other scenarios such as stimulated nuclear decay, for example.

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“…The idea has been further extended to the case in which both pulses are Sauter fields with different time scales [32,33]. However, in more realistic setups it is expected that the subcycle structure of an oscillating electric field (OEF) plays a relevant role as it provides a phenomenology characterized by resonant effects and Rabi-like oscillations [34][35][36][37][38][39]. To the best of our knowledge, the study of such a problem in a bifrequent OEF composed of a strong and a weak mode has not been addressed so far.…”

Section: Introductionmentioning

confidence: 99%

Electron-positron pair production in a bifrequent oscillating electric field

2014

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The production of electron-positron pairs from the quantum vacuum polarized by the superposition of a strong and a perturbative oscillating electric field mode is studied. Our outcomes rely on a nonequilibrium quantum field theoretical approach, described by the quantum kinetic BoltzmannVlasov equation. By superimposing the perturbative mode, the characteristic resonant effects and Rabi-like frequencies in the single-particle distribution function are modified, as compared to the predictions resulting from the case driven by a strong oscillating field mode only. This is demonstrated in the momentum spectra of the produced pairs. Moreover, the dependence of the total number of pairs on the intensity parameter of each mode is discussed and a strong enhancement found for large values of the relative Keldysh parameter.

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Ramsey Fringes and Time-Domain Multiple-Slit Interference from Vacuum

Cited by 106 publications

References 55 publications

Effects of electric field polarizations on pair production

Effects of electric field polarizations on pair production

Dynamically assisted Sauter-Schwinger effect in inhomogeneous electric fields

Electron-positron pair production in a bifrequent oscillating electric field

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