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arXiv 1407.5535physics.opticsquant-ph
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经典光的宏观量子效应

Macroscopic quantum effects for classical light

Nikolai I. Petrov

摘要:

利用波动方程的精确解析解,研究了光束在非均匀线性介质中传输的宏观量子光学效应(薛定谔猫态、压缩、坍缩和回复)。结果表明,宏观可分辨态的相干叠加是由初始离轴单波包通过模干涉产生的。保真度> 99%的压缩猫态周期性地出现,并在有限的传播距离内迅速消失。证明了由于模式干涉导致的波包在长期非傍轴演化过程中的崩溃和恢复。振荡的光束轨迹与非常小的振幅的顺序为10-19米,这是典型的估计造成的宇宙引力波在引力波探测器的位移发生。

英文摘要:

Macroscopic quantum optical effects (Schrodinger cat states, squeezing, collapse and revival) for light beams propagating in an inhomogeneous linear medium are demonstrated using exact analytical solutions of wave equation. It is shown that the coherent superposition of macroscopically distinguishable states is generated via mode interference from an initial off-axis single wave-packet. Squeezed cat states with a fidelity > 99% arise periodically and disappear rapidly within limited intervals of a propagation distance. Collapse and revival of wave packets at long-term non-paraxial evolution due to mode interference is demonstrated. Oscillations of the beam trajectory with extremely small amplitude of the order of 10-19 m which is typical of the estimated displacement caused by cosmic gravitational waves in gravity-wave detectors occur.

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