论文标题
扩展的非交通液中的随机运动
Stochastic motion in an expanding noncommutative fluid
论文作者
论文摘要
一种类似于Friedmann-Robertson-Walker几何形状的非交通性声流体的模型。为此，在（3+1）维时段中考虑了非共同的Abelian Higgs模型。在这种情况下，我们分析了该流体中测试颗粒的运动。该研究认为标量测试粒子与量化的无质量标量场耦合。在所有研究的情况下，由于颗粒平均平方速度的不合格性，我们都会发现校正。对于在地球学上自由移动的颗粒的非零速度分散剂与先前在文献中发现的无效结果，用于扩展交换流体。
A model for an expanding noncommutative acoustic fluid analogous to a Friedmann-Robertson-Walker geometry is derived. For this purpose, a noncommutative Abelian Higgs model is considered in a (3+1)-dimensional spacetime. In this scenario, we analyze the motion of test particles in this fluid. The study considers a scalar test particle coupled to a quantized fluctuating massless scalar field. For all cases studied, we find corrections due to the noncommutativity in the mean squared velocity of the particles. The nonzero velocity dispersion for particles that are free to move on geodesics disagrees with the null result found previously in the literature for expanding commutative fluid.
