Phase precision of Mach–Zehnder interferometer in PM2.5 air pollution<xref rid="cpb_27_7_070304fn1" ref-type="fn">*</xref><fn id="cpb_27_7_070304fn1"> <label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant No. 61306131) and the Science Foundation of Shaanxi Provincial Department of Education, China (Grant No. 14JK1682).</p></fn>

Phase precision of Mach–Zehnder interferometer in PM2.5 air pollution* *

Project supported by the National Natural Science Foundation of China (Grant No. 61306131) and the Science Foundation of Shaanxi Provincial Department of Education, China (Grant No. 14JK1682).

Xie Duan, Chen Haifeng

(color online) Phase precisions in the presence of different relative humidity for inputs of (a) coherent state & vacuum state (N = 100) and (b) coherent state & squeezed state (N = 100).