论文标题
相互作用颗粒的量子回旋镖效应
Quantum boomerang effect for interacting particles
论文作者
论文摘要
当量子粒子以有限的速度发射时，它可能会长时间恢复其初始位置，并永远留在那里。这种现象被称为``量子回旋镖效应''。修订版A 99，023629（2019）]。在平均场近似中处理的颗粒之间的相互作用显示出部分破坏双向飞旋镖效应：波包的质量中心会掉头，但并未完全恢复其初始位置。我们表明，可以使用单个参数（平均相互作用能量）定量解释这种现象。
When a quantum particle is launched with a finite velocity in a disordered potential, it may surprisingly come back to its initial position at long times and remain there forever. This phenomenon, dubbed ``quantum boomerang effect'', was introduced in [Phys. Rev. A 99, 023629 (2019)]. Interactions between particles, treated within the mean-field approximation, are shown to partially destroy the boomerang effect: the center of mass of the wave packet makes a U-turn, but does not completely come back to its initial position. We show that this phenomenon can be quantitatively interpreted using a single parameter, the average interaction energy.
