论文标题
光谱墙一个循环
Spectral Walls at One Loop
论文作者
论文摘要
光谱壁是经典BPS孤子的模量空间中的表面，其中内部激发跨越连续质量阈值。最近已经显示，经典场理论中的光谱壁抑制了相应的内部激发的孤子。我们首次在量子理论中研究了光谱壁的命运，计算出杂质存在的经典BPS抗Kink的瞬时加速。我们发现，在量子理论中，即使绑定模式不激发，反k也被排斥。也许由于这种排斥力，在我们的量子计算中看不到光谱壁的戏剧性经典作用。
A spectral wall is a surface in a moduli space of classically BPS solitons where an internal excitation crosses the continuum mass threshold. It has recently been shown that spectral walls in classical field theory repel solitons whose corresponding internal excitations are excited. We investigate, for the first time, the fate of spectral walls in a quantum theory, calculating the instantaneous acceleration of a wave packet of classically BPS antikinks in the presence of an impurity. We find that, in the quantum theory, the antikinks are repelled even when the bound mode is not excited. Perhaps due to this repulsive force, the dramatic classical effects of the spectral wall are not seen in our quantum calculation.
