论文标题
弱测量诱导的不对称脱位：内在测量手性的表现
Weak-measurement-induced asymmetric dephasing: manifestation of intrinsic measurement chirality
论文作者
论文摘要
几何dephasing不同于动态脱位，因为它取决于轨迹的轨迹，因此在翻转路径的方向时会逆转其符号。在这里，我们研究将系统转向封闭轨迹的广义（弱）测量序列。读数过程以波动为特征，引起了倾向。我们没有将后者归类为“动力学”和“几何”，而是确定了一种贡献，该贡献在逆转序列排序中不变，并且以几何倾向进行了类似，一种贡献会在弯曲方向上反转，可能会导致其偏向的反转，从而导致对DEPHASING的部分抑制（即增强均匀的固定性增强性增强”。这种去对称性的不对称性（在绕组逆转下）是内在性手性的一种表现，弱测量可以（并且通常都具有）。此外，dephasing在某些协议参数上有分歧，标记了测量引起的相位因子中的拓扑转换。
Geometrical dephasing is distinct from dynamical dephasing in that it depends on the trajectory traversed, hence it reverses its sign upon flipping the direction in which the path is traced. Here we study sequences of generalized (weak) measurements that steer a system in a closed trajectory. The readout process is marked by fluctuations, giving rise to dephasing. Rather than classifying the latter as "dynamical" and "geometrical", we identify a contribution which is invariant under reversing the sequence ordering and, in analogy with geometrical dephasing, one which flips its sign upon the reversal of the winding direction, possibly resulting in partial suppression of dephasing (i.e., "coherency enhancement"). This dephasing asymmetry (under winding reversal) is a manifestation of intrinsic chirality, which weak measurements can (and generically do) possess. Furthermore, the dephasing diverges at certain protocol parameters, marking topological transitions in the measurement-induced phase factor.
