论文标题
小爆炸中的宇宙粒子创造
Cosmological particle creation in the little bang
论文作者
论文摘要
通过假设初始状态与与流体动力学相对应的Quasiequilibrium统计算子相关联，研究了通过在未来的光锥标量量子场中扩展来产生粒子。我们从纵向增强不变的扩展量子场计算粒子产生，设计为相对论碰撞的中央速度区域的简单但可靠的模型。通过引入准粒子的概念来执行模型的精确对角线化。
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.
