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Demonstration of a non-Abelian geometric controlled-Not gate in a superconducting circuit by Xu, Kai; Ning, Wen; Huang, Xin-Jie; Han, Pei-Rong; Li, Hekang; Yang, Zhen-Biao; Zheng, Dongning; Fan, Heng; Zheng, Shi-Biao is a scholarly article available to read on EtoBox.

What is Demonstration of a non-Abelian geometric controlled-Not gate in a superconducting circuit about?

Holonomies, arising from non-Abelian geometric transformations of quantum states in Hilbert space, offer a promising way for quantum computation. These holonomies are not commutable and thus can be used for the realization of a universal set of quantum logic gates, where the global geometric feature may result in some noise-resilient advantages. Here we report the first on-chip realization of a non-Abelian geometric controlled-Not gate in a superconducting circuit, which is a building block for constructing a holonomic quantum computer. The conditional dynamics is achieved in an all-to-all connected architecture involving multiple frequency-tunable superconducting qubits controllably coupled to a resonator; a holonomic gate between any two qubits can be implemented by tuning their frequencies on resonance with the resonator and applying a two-tone drive to one of them. This gate represents an important step towards the all-geometric realization of scalable quantum computation on a superconducting platform.

Author

Xu, Kai; Ning, Wen; Huang, Xin-Jie; Han, Pei-Rong; Li, Hekang; Yang, Zhen-Biao; Zheng, Dongning; Fan, Heng; Zheng, Shi-Biao

Published

2020

Language

EN