Zobrazeno 1 - 10
of 9 520
pro vyhledávání: '"A, Greger"'
We consider nonlinear trident, $e^{\scriptscriptstyle -}\to e^{\scriptscriptstyle -} e^{\scriptscriptstyle -} e^{\scriptscriptstyle +}$, in various electric background fields. This process has so far been studied for plane-wave backgrounds, using Vol
Externí odkaz:
http://arxiv.org/abs/2412.19758
We use a worldline-instanton formalism to study the momentum spectrum of Schwinger pair production in spacetime fields with multiple stationary points. We show that the interference structure changes fundamentally when going from purely time-dependen
Externí odkaz:
http://arxiv.org/abs/2412.19709
Autor:
Torgrimsson, Greger
We derive analytical $\chi\ll1$ approximations for spin-dependent quantum radiation reaction for locally constant and locally monochromatic fields. We show how to factor out fast spin oscillations and obtain the degree of polarization in the plane or
Externí odkaz:
http://arxiv.org/abs/2404.04152
We study the problem of aggregating distributions, such as budget proposals, into a collective distribution. An ideal aggregation mechanism would be Pareto efficient, strategyproof, and fair. Most previous work assumes that agents evaluate budgets ac
Externí odkaz:
http://arxiv.org/abs/2402.15904
We show how to use a worldline-instanton formalism to calculate, to leading order in the weak-field expansion, the momentum spectrum of nonlinear Breit-Wheeler pair production in fields that depend on time and one spatial coordinate. We find a nontri
Externí odkaz:
http://arxiv.org/abs/2312.17186
Autor:
Torgrimsson, Greger
In previous works we derived equations for the average momentum of high-energy electrons experiencing quantum radiation reaction (RR) in strong electromagnetic plane-wave background fields. In this paper we derive similar equations for the momentum s
Externí odkaz:
http://arxiv.org/abs/2310.09863
We calculate the momentum spectrum of electron-positron pairs created via the Schwinger mechanism by a class of four-dimensional electromagnetic fields called e-dipole fields. To the best of our knowledge, this is the first time the momentum spectrum
Externí odkaz:
http://arxiv.org/abs/2308.01659
Autor:
André, Jérôme, Chezeaux, Chloé, Fachard, Sylvian, Greger, Daniela, Krapf, Tobias, Saggini, Tamara, Theurillat, Thierry, Verdan, Samuel, Simosi, Angeliki, Kyriazi, Olga, Chryssoulaki, Stella, Michalopoulou, Sophia, Vokotopoulos, Leonidas
Publikováno v:
Antike Kunst, 2023 Jan 01. 66, 93-14.
Externí odkaz:
https://www.jstor.org/stable/27255578
We study a portioning setting in which a public resource such as time or money is to be divided among a given set of candidates, and each agent proposes a division of the resource. We consider two families of aggregation rules for this setting -- tho
Externí odkaz:
http://arxiv.org/abs/2307.15586
Charity is typically carried out by individual donors, who donate money to charities they support, or by centralized organizations such as governments or municipalities, which collect individual contributions and distribute them among a set of charit
Externí odkaz:
http://arxiv.org/abs/2305.10286