Optical Engineering for Quantum Computing Over the Optical Frequency Comb

Olivier Pfister

Olivier Pfister

Xuan Zhu, Chun-Hung Chang, Carlos González-Arciniegas +3 more

The quantum optical frequency comb (QOFC) of a single optical parametric oscillator (OPO) is a scalable platform for quantum information as a generator of large size cluster states. We show that the phase modulation of the QOFCs emitted by an OPO is a powerful graph engineering technique that can increase the topological dimension of the generated cluster state, from zero (independent EPR pairs) to one (linear cluster state), and from one to two (square-lattice cluster state), thereby allowing the creation and tailoring of universal quantum computing resources. This concept is highly compatible with integrated photonics.

Pei Wang, Wenjiang Fan, Olivier Pfister

One of the most scalable methods for continuous-variable quantum computing is to encode quantum information in the quantum optical frequency comb generated by an optical parametric oscillator (OPO). The scalability is limited by the quasiphasematching bandwidth and dispersion of the OPO. We study both factors in this article. The results show that 3200 qumodes are probably entangled in our recent demonstration of a record 60-qumode entanglement.

王少锋 Wang Shaofeng, 项晓 Xiang Xiao, 董瑞芳 Dong Ruifang +2 more

Sverre Gullikstad Johnsen