Kinetic description of vacuum particle production in collisions of ultrarelativistic nuclei

Vinnik, D. V.; Mizerny, V. A.; Prozorkevich, A. V.; Smolyansky, S. A.; Тонеев, В.Д.

doi:10.1134/1.1368229

Cited by 14 publications

(12 citation statements)

References 36 publications

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“…The maximal number of bosons is created with zero momentum, whereas there are no fermions with p = 0. This feature differs qualitatively from the case of the Schwinger mechanism of particle creation [38].…”

Section: Numerical Resultscontrasting

confidence: 63%

Inertial mechanism: Dynamical mass as a source of particle creation

et al. 2008

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A kinetic theory of vacuum particle creation under the action of an inertial mechanism is constructed within a nonpertrubative dynamical approach. At the semi-phenomenological level, the inertial mechanism corresponds to quantum field theory with a time-dependent mass. At the microscopic level, such a dependence may be caused by different reasons: The non-stationary Higgs mechanism, the influence of a mean field or condensate, the presence of the conformal multiplier in the scalar-tensor gravitation theory etc. In what follows, a kinetic theory in the collisionless approximation is developed for scalar, spinor and massive vector fields in the framework of the oscillator representation, which is an effective tool for transition to the quasiparticle description and for derivation of non-Markovian kinetic equations. Properties of these equations and relevant observables (particle number and energy densities, pressure) are studied. The developed theory is applied here to describe the vacuum matter creation in conformal cosmological models and discuss the problem of the observed number density of photons in the cosmic microwave background radiation. As other example, the self-consistent evolution of scalar fields with non-monotonic self-interaction potentials (the Wpotential and Witten-Di Vecchia -Veneziano model) is considered. In particular, conditions for appearance of tachyonic modes and a problem of the relevant definition of a vacuum state are considered.

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Section: Numerical Resultscontrasting

confidence: 63%

Inertial mechanism: Dynamical mass as a source of particle creation

et al. 2008

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“…The kinetics of electron -positron vacuum pair creation under the action of a linearly polarized electric field has been studied in several works, (see, e.g., [4,32,33] and the references therein). The corresponding generalization to the case of an arbitrarily polarized time-dependent electric field was obtained in [34][35][36].…”

Section: Kinetic Equations In the Electron -Positron Sectormentioning

confidence: 99%

BBGKY kinetic approach for ane−e+γplasma created from the vacuum in a strong laser-generated electric field: The one-photon annihilation channel

et al. 2011

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In the present work a closed system of kinetic equations is obtained from the truncation of the BBGKY hierarchy for the description of the vacuum creation of an electron -positron plasma and secondary photons due to a strong laser field. This truncation is performed in the Markovian approximation for the one-photon annihilation channel which is accessible due to the presence of the strong external field. Estimates of the photon production rate are obtained for different domains of laser field parameters (frequency ν and field strength E). A huge quantity of optical photons of the quasiclassical laser field is necessary to satisfy the conservation laws of the energy and momentum of the constituents (e − , e + and γ) in this channel. Since the number of these optical photons corresponds to the order of perturbation theory, a vanishingly small photon production rate results for the optical region and strongly subcritical fields E ≪ Ec. In the γ-ray region ν m the required number of laser photons is small and the production rate of photons from the one-photon annihilation process becomes accessible to observations for subcritical fields E Ec. In the infrared region the photon distribution has a 1/k spectrum typical for flicker noise. PACS numbers: 42.55.Vc, 41.60.Cr, I.

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“…Theoretical research on this effect in the framework of kinetic theory [2] has shown the existence of a quasiparticle plasma of high density already in subcritical electric fields E E c = m 2 /e [3]. Such a quasiparticle plasma does not survive after switching off the external field in contrast to the real (observed) plasma that remains after applying the pulse of a strong field E ≥ E c [4], see also [5] for the case E ∼ E c .…”

Section: Introductionmentioning

confidence: 99%

Kinetics of Photon Radiation off an e^–e⁺‐Plasma Created from the Vacuum in a Strong Laser Field

Blaschke

Röpke

Schmidt

et al. 2011

Contrib. Plasma Phys.

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We consider the one-photon annihilation mechanism in a electron -positron quasiparticle plasma (EPP) created from the vacuum in a strong subcritical laser field due to the dynamical Schwinger mechanism. On the basis of a kinetic theory approach we show that the secondary photons have a radiation spectrum proportional to 1/k (flicker noise). This effect is very small for EPP excitations in the optical spectrum but can reach quite observable values in the γ -ray region.

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Kinetic description of vacuum particle production in collisions of ultrarelativistic nuclei

Cited by 14 publications

References 36 publications

Inertial mechanism: Dynamical mass as a source of particle creation

Inertial mechanism: Dynamical mass as a source of particle creation

BBGKY kinetic approach for ane−e+γplasma created from the vacuum in a strong laser-generated electric field: The one-photon annihilation channel

Kinetics of Photon Radiation off an e^–e⁺‐Plasma Created from the Vacuum in a Strong Laser Field

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Kinetic description of vacuum particle production in collisions of ultrarelativistic nuclei

Cited by 14 publications

References 36 publications

Inertial mechanism: Dynamical mass as a source of particle creation

Inertial mechanism: Dynamical mass as a source of particle creation

BBGKY kinetic approach for ane−e+γplasma created from the vacuum in a strong laser-generated electric field: The one-photon annihilation channel

Kinetics of Photon Radiation off an e–e+‐Plasma Created from the Vacuum in a Strong Laser Field

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Kinetics of Photon Radiation off an e^–e⁺‐Plasma Created from the Vacuum in a Strong Laser Field