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arXiv 1806.02665hep-thhep-ph
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用于产生热施温格对的Worldline闪锌矿

Worldline sphaleron for thermal Schwinger pair production

Oliver Gould, Arttu Rajantie, Cheng Xie

摘要:

随着温度的升高,施温格对的产生从量子隧穿变成了经典的热过程,由世界线决定。我们证明了这一点,并计算相应的速率对生产的旋量和标量量子电动力学,包括半经典的前因子。对于在电场存在下从光子热浴中产生电子-正电子对,我们得到的速率比微扰光子聚变和零温度Schwinger过程都快。我们的工作是在耦合的所有订单,因此我们的结果也是相关的对生产(强耦合)磁单极子在重离子碰撞。

英文摘要:

With increasing temperatures, Schwinger pair production changes from a quantum tunnelling to a classical, thermal process, determined by a worldline sphaleron. We show this and calculate the corresponding rate of pair production for both spinor and scalar quantum electrodynamics, including the semiclassical prefactor. For electron-positron pair production from a thermal bath of photons and in the presence of an electric field, the rate we derive is faster than both perturbative photon fusion and the zero temperature Schwinger process. We work to all-orders in the coupling and hence our results are also relevant to the pair production of (strongly coupled) magnetic monopoles in heavy ion collisions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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