Plasma production and thermalisation in a strong field

Vinnik, D. V.; Prozorkevich, A. V.; Smolyansky, S. A.; Тонеев, В.Д.; Hecht, M. B.; Roberts, C. D.; Schmidt, S.

doi:10.1007/s100520100787

Cited by 41 publications

(57 citation statements)

References 25 publications

(46 reference statements)

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“…2 Also, in what follows, we take into account neither the collision between the created particles nor their inherent radiation fields. Previous investigations on these subjects have revealed that the effects induced by both phenomena are irrelevant for the PP whenever the field strength E is weaker than the critical one E c [43][44][45] and this is in fact the regime in which we are interested.…”

Section: Quantum Kinetic Approachmentioning

confidence: 97%

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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Section: Quantum Kinetic Approachmentioning

confidence: 97%

Electron-positron pair production in a bifrequent oscillating electric field

2014

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“…In Ref. [437,458,459,460,267], the quantum Vlasov equation has been numerically studied to show the plasma oscillations and the non-Markovian effects. They are also compared with the Boltzmann-Vlasov equation (534) that corresponds to the Markovian limit.…”

Section: Quantum Vlasov Equationmentioning

confidence: 99%

“…The mean values of momentum p(t) and energyǭ(t) are computed [460] by using distribution function F (p, t) regularized via the procedure described in Ref. [458] that yields the renormalized electric current (556).…”

Section: Collision Decoherence In Plasma Oscillationsmentioning

confidence: 99%

Electron–positron pairs in physics and astrophysics: From heavy nuclei to black holes

Ruffini¹,

Vereshchagin²,

Xue³

2010

Physics Reports

483

305

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Due to the interaction of physics and astrophysics we are witnessing in these years a splendid synthesis of theoretical, experimental and observational results originating from three fundamental physical processes. They were originally proposed by Dirac, by Breit and Wheeler and by Sauter, Heisenberg, Euler and Schwinger. For almost seventy years they have all three been followed by a continued effort of experimental verification on Earth-based experiments. The Dirac process, e + e − → 2γ, has been by far the most successful. It has obtained extremely accurate experimental verification and has led as well to an enormous number of new physics in possibly one of the most fruitful experimental avenues by introduction of storage rings in Frascati and followed by the largest accelerators worldwide: DESY, SLAC etc. The Breit-Wheeler process, 2γ → e + e − , although conceptually simple, being the inverse process of the Dirac one, has been by far one of the most difficult to be verified experimentally. Only recently, through the technology based on free electron X-ray laser and its numerous applications in Earth-based experiments, some first indications of its possible verification have been reached. The vacuum polarization process in strong electromagnetic field, pioneered by Sauter, Heisenberg, Euler and Schwinger, introduced the concept of critical electric field E c = m 2 e c 3 /(e ). It has been searched without success for more than forty years by heavy-ion collisions in many of the leading particle accelerators worldwide.The novel situation today is that these same processes can be studied on a much more grandiose scale during the gravitational collapse leading to the formation of a black hole being observed in Gamma Ray Bursts (GRBs). This report is dedicated to the scientific race. The theoretical and experimental work developed in Earth-based laboratories is confronted with the theoretical interpretation of space-based observations of phenomena originating on cosmological scales. What has become clear in the last ten years is that all the three above mentioned processes, duly extended in the general relativistic framework, are necessary for the understanding of the physics of the gravitational collapse to a black hole. Vice versa, the natural arena where these processes can be observed in mutual interaction and on an unprecedented scale, is indeed the realm of relativistic astrophysics.We systematically analyze the conceptual developments which have followed the basic work of Dirac and Breit-Wheeler. We also recall how the seminal work of Born and Infeld inspired the work by Sauter, Heisenberg and Euler on effective Lagrangian leading to the estimate of the rate for the process of electron-positron production in 1 a constant electric field. In addition of reviewing the intuitive semi-classical treatment of quantum mechanical tunneling for describing the process of electron-positron production, we recall the calculations in Quantum Electro-Dynamics of the Schwinger rate and effective Lagrangian for cons...

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“…(178) can be justified in the mean field approximation based on the large-N f expansion [83], or by the classical-statistical approximation for strong gauge fields [77]. Numerical computations including the back reaction problem have been conducted in several studies [57,62,77,[84][85][86][87][88][89][90][91][92][93]. Figure 10: The time evolution of the electrical field E z (t) scaled by its initial value E 0 (solid line, left axis), and the induced charge current J z (t) divided by (eE 0 ) 3/2 (dotted line, right axis).…”

Section: Back Reactionmentioning

confidence: 99%