Issue 38, 2020

A heterometallic [LnLn′Ln] lanthanide complex as a qubit with embedded quantum error correction

Abstract

We show that a [Er–Ce–Er] molecular trinuclear coordination compound is a promising platform to implement the three-qubit quantum error correction code protecting against pure dephasing, the most important error in magnetic molecules. We characterize it by preparing the [Lu–Ce–Lu] and [Er–La–Er] analogues, which contain only one of the two types of qubit, and by combining magnetometry, low-temperature specific heat and electron paramagnetic resonance measurements on both the elementary constituents and the trimer. Using the resulting parameters, we demonstrate by numerical simulations that the proposed molecular device can efficiently suppress pure dephasing of the spin qubits.

Graphical abstract: A heterometallic [LnLn′Ln] lanthanide complex as a qubit with embedded quantum error correction

Supplementary files

Article information

Article type
Edge Article
Submitted
03 jun 2020
Accepted
18 aug 2020
First published
20 aug 2020
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2020,11, 10337-10343

A heterometallic [LnLn′Ln] lanthanide complex as a qubit with embedded quantum error correction

E. Macaluso, M. Rubín, D. Aguilà, A. Chiesa, L. A. Barrios, J. I. Martínez, P. J. Alonso, O. Roubeau, F. Luis, G. Aromí and S. Carretta, Chem. Sci., 2020, 11, 10337 DOI: 10.1039/D0SC03107K

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