Quantum error correction with molecular spin qudits

• DOI: 10.1039/d2cp01228f
• Publication Date: 2022-07-14T13:57:47Z
• Authors: Mario Chizzini; Luca Crippa; Luca Zaccardi; Emilio Macaluso; Stefano Carretta; Alessandro Chiesa; Paolo Santini
• Keywords: metodi matematici e applicazioni; Settore PHYS-04/A - Fisica teorica della materia; 0103 physical sciences; 500; 530; 01 natural sciences; modelli

Thanks to the large number of levels which can be coherently manipulated, molecular spin systems constitute a very promising platform for quantum computing. Indeed, they embed error correction within single objects, thus greatly simplifying its actual realization in short term. We consider recent proposal, exploits qudit encode protected unit, and is tailored fight pure dephasing. Here we compare implementation this code on different molecules, provided by either an electronic or nuclear (S, I > 1), coupled spin-1/2 ancilla detection. By thorough numerical simulations show that significant gain effective phase memory time achieved. This further enhanced exploiting pulse-shaping techniques reduce leakage and/or impact decoherence during correction. Moreover, simulate single-qubit operations encoded states.