论文标题
冲动激发引力量子状态：回声和时间分辨光谱法
Impulsively Excited Gravitational Quantum States: Echoes and Time-resolved Spectroscopy
论文作者
论文摘要
从理论上讲，我们研究了冲动激发的量子弹跳器（QB） - 在重力存在下从表面弹跳的粒子。显示了一对延迟的脉冲激发诱导波包回声效应 - QB波函数的部分重新播种，其出现在脉冲之间的延迟的两倍。此外，记录的可观察到的可观察到的可观察到的（在此，地面重力量子态（GQS）的种群）记录为延迟的函数，该函数显示出有关GQSS，其种群和有关波数据集量子量的部分相之间的过渡频率。波包回声效应是一种有前途的候选方法，用于对封闭的重力陷阱中的超冷中子，原子和抗原子的GQS进行精确研究。
We theoretically study an impulsively excited quantum bouncer (QB) - a particle bouncing off a surface in the presence of gravity. A pair of time-delayed pulsed excitations is shown to induce a wave-packet echo effect - a partial rephasing of the QB wave function appearing at twice the delay between pulses. In addition, an appropriately chosen observable [here, the population of the ground gravitational quantum state (GQS)] recorded as a function of the delay is shown to contain the transition frequencies between the GQSs, their populations, and partial phase information about the wave packet quantum amplitudes. The wave-packet echo effect is a promising candidate method for precision studies of GQSs of ultra-cold neutrons, atoms, and anti-atoms confined in closed gravitational traps.
