Experimental Generation of Optical Continuous-Variable Cluster States

Olivier Pfister, Hussain Zaidi, Nicolas C. Menicucci +3 more

Seiji Armstrong, Mitsuyoshi Yukawa, Ryuji Ukai +4 more

Continuous-variable Gaussian cluster states are a potential resource for universal quantum computation. Here we report on the optical generation and theoretical verification of three different kinds of four-mode continuous variable cluster states.

Ze Wang, Kangkang Li, Yue Wang +10 more

We experimentally demonstrate reconfigurable and scalable continuous-variable cluster states by combining the Kerr microcombs with programmable bichromatic pumps within a single microresonator. The generated two-dimensional cluster states consist of 28 entangled modes in the frequency domain as required for universal quantum information processing.

V. Odent

彭堃墀 Peng Kunchi, 贾晓军 Jia Xiaojun, 苏晓龙 Su Xiaolong +1 more

Nicolas C. Menicucci, Steven T. Flammia, Hussain Zaidi +1 more

We propose an experimental scheme that has the potential for large-scale realization of continuous-variable (CV) cluster states for universal quantum computation. We do this by mapping CV cluster-state graphs onto two-mode squeezing graphs, which can be engineered into a single optical parametric oscillator (OPO). The desired CV cluster state is produced directly from a joint squeezing operation on the vacuum, using a multifrequency pump beam. This method has potential for ultracompact experimental implementation. As an illustration, we detail an experimental proposal for creating a four-mode square CV cluster state with a single OPO.