Robust entangling gate for polar molecules using magnetic and microwave fields

Hughes, Michael; Frye, Matthew D.; Sawant, Rahul; Bhole, Gaurav; Jones, Jonathan A.; Cornish, Simon L.; Tarbutt, M.R.; Hutson, Jeremy M.; Jaksch, Dieter; Mur-Petit, Jordi

Abstract

Polar molecules are an emerging platform for quantum technologies based on their long-range electric dipole–dipole interactions, which open new possibilities for quantum information processing and the quantum simulation of strongly correlated systems. Here, we use magnetic and microwave fields to design a fast entangling gate with >0.999 fidelity and which is robust with respect to fluctuations in the trapping and control fields and to small thermal excitations. These results establish the feasibility to build a scalable quantum processor with a broad range of molecular species in optical-lattice and optical-tweezers setups.

Citation

Hughes, M., Frye, M. D., Sawant, R., Bhole, G., Jones, J. A., Cornish, S. L., Tarbutt, M., Hutson, J. M., Jaksch, D., & Mur-Petit, J. (2020). Robust entangling gate for polar molecules using magnetic and microwave fields. Physical Review A, 101(6), Article 062308. https://doi.org/10.1103/physreva.101.062308

• Journal Article Type: Article
• Acceptance Date: May 7, 2020
• Online Publication Date: Jun 3, 2020
• Publication Date: 2020-06
• Deposit Date: Jun 9, 2020
• Publicly Available Date: Jun 9, 2020
• Journal: Physical Review A
• Print ISSN: 2469-9926
• Electronic ISSN: 2469-9934
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 101
• Issue: 6
• Article Number: 062308
• DOI: https://doi.org/10.1103/physreva.101.062308
• Public URL: https://durham-repository.worktribe.com/output/1263077