Coherent manipulation of a molecular Ln-based nuclear qudit coupled to an electron qubit

TL;DR

This paper demonstrates the coherent manipulation of a molecular lanthanide-based nuclear qudit coupled with an electron qubit, showcasing potential for quantum information processing with noise-resilient features and embedded error correction.

Contribution

It introduces a molecular system that enables coherent control of a nuclear qudit coupled to an electron qubit, with novel noise resilience and quantum error correction capabilities.

Findings

Successful coherent manipulation of the nuclear qudit using radio-frequency pulses

Exploitation of the qudit's multi-level structure for quantum error correction

Significant reduction in nutation time due to electron-nuclear mixing

Abstract

We demonstrate that the [Yb(trensal)] molecule is a prototypical coupled electronic qubit-nuclear qudit system. The combination of noise-resilient nuclear degrees of freedom and large reduction of nutation time induced by electron-nuclear mixing enables coherent manipulation of this qudit by radio-frequency pulses. Moreover, the multi-level structure of the qudit is exploited to encode and operate a qubit with embedded basic quantum error correction.