论文标题
高精度轻脉冲原子干涉法的扰动操作员方法
Perturbative operator approach to high-precision light-pulse atom interferometry
论文作者
论文摘要
轻脉冲原子干涉仪是强大的量子传感器，但是，例如在弱等效原理测试中，其精度受到各种虚假影响（例如磁性流浪场或黑体辐射）的限制。因此，提高准确性需要详细评估这种有害影响的大小。在这里，我们提出了一个系统的操作员扩展，以在扰动的能力中分析相移和对比度。结果可以用于稳健的直接稳定顺序估计值，也可以用于严格的计算。加上该方法有效性的一般条件，我们为包括波包效应的阶段提供了一个特别有用的公式。
Light-pulse atom interferometers are powerful quantum sensors, however, their accuracy for example in tests of the weak equivalence principle is limited by various spurious influences like magnetic stray fields or blackbody radiation. Pushing the accuracy therefore requires a detailed assessment of the size of such deleterious effects. Here, we present a systematic operator expansion to obtain phase shifts and contrast analytically in powers of the perturbation. The result can either be employed for robust straightforward order-of-magnitude estimates or for rigorous calculations. Together with general conditions for the validity of the approach, we provide a particularly useful formula for the phase including wave-packet effects.
