Details

Autor(en) / Beteiligte

• Xu, Y.
• Hua, Z.
• Chen, Tao
• Pan, X.
• Li, X.
• Han, J.
• Cai, W.
• Ma, Y.
• Wang, H.
• Song, Y. P.
• Xue, Zheng-Yuan
• Sun, L.

Titel

Experimental Implementation of Universal Nonadiabatic Geometric Quantum Gates in a Superconducting Circuit

Ist Teil von

• Physical review letters, 2020-06, Vol.124 (23), p.1-230503, Article 230503

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2020

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• Using geometric phases to realize noise-resilient quantum computing is an important method to enhance the control fidelity. In this work, we experimentally realize a universal nonadiabatic geometric quantum gate set in a superconducting qubit chain. We characterize the realized single- and two-qubit geometric gates with both quantum process tomography and randomized benchmarking methods. The measured average fidelities for the single-qubit rotation gates and two-qubit controlled-Z gate are 0.9977(1) and 0.977(9), respectively. Besides, we also experimentally demonstrate the noise-resilient feature of the realized single-qubit geometric gates by comparing their performance with the conventional dynamical gates with different types of errors in the control field. Thus, our experiment proves a way to achieve high-fidelity geometric quantum gates for robust quantum computation.