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arXiv · 1912.09419

A robust entangling gate for polar molecules using magnetic and microwave fields

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

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Michael Hughes, Matthew D. Frye, Rahul Sawant, Gaurav Bhole, Jonathan A. Jones, Simon L. Cornish, M. R. Tarbutt, Jeremy M. Hutson, Dieter Jaksch, Jordi Mur-Petit. 2019-12-19. A robust entangling gate for polar molecules using magnetic and microwave fields. https://doi.org/10.1103/physreva.101.062308

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