带随机初始条件的有效场方程
Effective field equations with stochastic initial conditions
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中文总结 AI 辅助
本文探讨将截断维格纳扩展为含高阶圈与高阶动量修正的有效场方程方法,以数值追踪非平衡量子初态下量子场期望值演化及假真空衰变等非微扰量子现象。
中文摘要 AI 辅助
利用截断维格纳(Truncated Wigner)技术可数值追踪非平衡量子初态下量子场期望值的演化,该方法能实时追踪假真空衰变等非微扰量子现象,结果可观,但属于近似方法,受量子圈修正影响。本文讨论将截断维格纳扩展为成熟的有效场方程方法,包含高阶圈与高阶动量的修正。
英文摘要
The evolution of quantum field expectation values from an initial non-equilibrium quantum state can be followed numerically using the Truncated Wigner technique. It can track non-perturbative quantum phenomena, such as false vacuum decay, in real time with promising results. Nevertheless, it is an approximate method subject to quantum loop corrections. The extension of Truncated Wigner into a fully fledged effective field equation approach is discussed here, including corrections from higher loops and higher momenta.