关于光子的粒子数一相位测不准关系

On Photon Number-Phase Uncertainty Relations

通过对角变量量子性质的阐述,说明光子的粒子数—相位测不准关系△N·△sinφ≥1/2<(?)>及△N·△cosφ≥1/2<(?)>的明确物理意义。指出Breltenberger对此不等式的争议可能只不过是由于对角变量物理本质的误解。

The quantum nature of angle variables is described and the physical meaning of photon number-phase uncertainty relations: △N·△sinφ≥1/2<cosφ>and△N·△cosφ≥1/2<sinφ> is discussed. All of these show that Breitenberger's arguement on the above uncertainty relations may be a misunderstanding of the physical properties of angle variables.