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利用PPKTP晶体产生真空压缩态及其Wigner准概率分布函数的量子重构
  • 期刊名称：物理学报
  • 时间：0
  • 页码：59-65
  • 语言：中文
  • 分类：O431.2[机械工程—光学工程;理学—光学;理学—物理] TM714.3[电气工程—电力系统及自动化]
  • 作者机构：[1]山西大学光电研究所量子光学与光量子器件国家重点实验室,太原030006
  • 相关基金：国家重点基础研究发展计划（973）项目（批准号：2006CB921101）,国家杰出青年基金（批准号：10725416）,国家自然科学基金（批准号：60678029）和长江学者和创新团队发展计划资助项目资助的课题.
  • 相关项目：量子光学
作者： 叶晨光|张靖|
关键词： 真空压缩态光场, 光学参量振荡器, 量子层析, Wigner准概率分布函数, squeezed vacuum,optical parametric oscillator,quantum tomography,Wigner quasi-probability distribution function
中文摘要：

通过光学腔内置周期极化磷酸氧钛晶体的连续光学参量振荡器,以532 nm光场为抽运场,产生1064 nm的真空压缩态光场,利用平衡零拍探测技术得到3.41 dB的实测压缩度,并采用量子层析技术重构出真空压缩态光场在相空间的Wigner准概率分布函数.

英文摘要：

We demonstrated experimentally the generation of squeezed vacuum by a periodically poled KTP crystal in a continuous-wave optical parametric oscillator,which was pumped with 532nm field.The squeezed vacuum of 3.41 dB at 1064 nm was detected by a homodyne detection system.Moreover,the Wigner quasi-probability distribution function of the squeezed vacuum was reconstructed using quantum tomography technique.

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