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arXiv 2008.13606hep-phhep-thnucl-th
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小爆炸中的宇宙粒子产生

Cosmological particle creation in the little bang

S. V. Akkelin

摘要:

假设初态与对应于流体动力学的准平衡统计算符相关联,研究了在未来光锥标量量子场中粒子的产生.我们计算粒子生产的纵向推进不变的扩展量子场设计为一个简单但可靠的模型的中心快度区域的相对论碰撞。通过引入准粒子的概念来执行模型的精确对角化。

英文摘要:

Particle production by expanding in the future light cone scalar quantum field is studied by assuming that the initial state is associated with the quasiequilibrium statistical operator corresponding to fluid dynamics. We calculate particle production from a longitudinally boost-invariant expanding quantum field designed as a simple but reliable model for the central rapidity region of a relativistic collision. Exact diagonalization of the model is performed by introducing a notion of quasiparticles.

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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