...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical Review, A. Atomic, molecular, and optical physics >Time-modulated type-II optical parametric oscillator: Quantum dynamics and strong Einstein-Podolsky-Rosen entanglement
【24h】

Time-modulated type-II optical parametric oscillator: Quantum dynamics and strong Einstein-Podolsky-Rosen entanglement

机译：时间调制的II型光学参量振荡器：量子动力学和强爱因斯坦-波多尔斯基-罗森纠缠

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We investigate semiclassical dynamics and quantum properties of light beams generated in time-modulated nondegenerate optical parametric oscillator (NOPO). Having in view production of continuous-variable (CV) entangled states of light beams we propose two experimentally feasible schemes of NOPO: (i) driven by continuously modulated pump field; (ii) under action of a periodic sequence of identical laser pulses. It is shown that the time modulation of pump field amplitude essentially improves the degree of CV entanglement in NOPO. On the whole the level of integral two-mode squeezing, which characterizes the degree of CV entanglement, goes below the standard limit established in an ordinary NOPO with monochromatic pumping. We develop semiclassical and quantum theories of these devices for both below- and above-threshold regimes of generation. Properties of CV entanglement for various operational regimes of the devices are discussed in the time domain in application to time-resolved quantum information technologies. Our analytical results are in well agreement with the results of numerical simulation and support a concept of CV entangled states of time-modulated light beams.
机译：我们研究在时间调制的非简并光学参量振荡器（NOPO）中产生的光束的半经典动力学和量子性质。考虑到光束的连续可变（CV）纠缠态的产生，我们提出了两种实验上可行的NOPO方案：（i）由连续调制的泵浦场驱动; （ii）在相同激光脉冲的周期性序列的作用下。结果表明，泵浦场振幅的时间调制实质上改善了NOPO中CV的缠结程度。总体而言，表征CV纠缠程度的积分双模压缩水平低于使用单色泵浦的普通NOPO中建立的标准极限。我们针对阈值以下和阈值以上的发电方式开发了这些设备的半经典和量子理论。在时域中讨论了器件在各种工作状态下CV纠缠的特性，并将其应用于时间分辨量子信息技术。我们的分析结果与数值模拟的结果非常吻合，并支持了时间调制光束的CV纠缠态的概念。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号