We describe a scheme that allows for the generation of any desired N-photon state on demand. Under ideal conditions, this requires only N single photon sources, laser pulses and linear optics elements. First, the sources should be initialised with the help of single-qubit rotations and repeat-until-success two-qubit quantum gates [Lim et al., Phys. Rev. Lett. 95, 030305 (2005)]. Afterwards, the state of the sources can be mapped onto the state of N newly generated photons whenever needed.
展开▼
机译：我们描述了一种允许按需生成任何所需N光子状态的方案。在理想条件下，这仅需要N个单光子源，激光脉冲和线性光学元件。首先，应在单量子位旋转和重复直到成功的两量子位量子门的帮助下初始化源[Lim et al。，Phys。牧师95，030305（2005）]。之后，只要需要，就可以将源的状态映射到N个新生成的光子的状态。
展开▼
