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首页> 外文期刊>Journal of the Optical Society of America, B. Optical Physics >Quantum self-homodyne tomography with an empty cavity
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Quantum self-homodyne tomography with an empty cavity

机译:空腔的量子自同波层析成像

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We develop a scheme to reconstruct the optical quantum state of a single-mode bright light field by using the dispersion characteristics of the empty cavity. The input field has a strong coherent component at frequency omega0, which serves as a local oscillator (LO) to measure its two-sideband mode at omega (0) +/- Omega. We control the relative phase of the 0-2 pi range between the LO and the two-sideband mode by scanning the cavity length, so the optical quantum state is tomographically reconstructed. In the proposed scheme the influence of the space-mode mismatch between the LO and measured mode on the quantum efficiency is eliminated, and this scheme can conveniently be used in some quantum optical systems in which LO field cannot be available. (C) 2000 Optical Society of America [S0740-3224(00)01510-1]. [References: 20]
机译:我们开发了一种利用空腔的色散特性来重构单模明亮光场的光学量子态的方案。输入场在omega0频率处具有很强的相干分量,可作为本机振荡器(LO)来测量其在omega(0)+/- Omega处的双边带模式。我们通过扫描腔体长度来控制LO和双边带模式之间0-2 pi范围的相对相位,因此以断层成像的方式重建了光学量子态。在提出的方案中,消除了本振和测量模之间的空间模式不匹配对量子效率的影响,该方案可方便地用于某些无法获得本振场的量子光学系统中。 (C)2000年美国光学学会[S0740-3224(00)01510-1]。 [参考:20]

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