| Issue |
EPL
Volume 110, Number 3, May 2015
|
|
|---|---|---|
| Article Number | 33001 | |
| Number of page(s) | 6 | |
| Section | Atomic, Molecular and Optical Physics | |
| DOI | https://doi.org/10.1209/0295-5075/110/33001 | |
| Published online | 18 May 2015 | |
Quantum Error Correction with magnetic molecules
1 Instituto de Ciencia Molecular (ICMol), Universidad de Valencia - Catedrático José Beltrán 2, 46980 Paterna, Spain
2 Physics Department, Trinity College - Dublin 2, Ireland
Received: 27 January 2015
Accepted: 20 April 2015
Quantum algorithms often assume independent spin qubits to produce trivial 
, 
mappings. This can be unrealistic in many solid-state implementations with sizeable magnetic interactions. Here we show that the lower part of the spectrum of a molecule containing three exchange-coupled metal ions with 
and 
is equivalent to nine electron-nuclear qubits. We derive the relation between spin states and qubit states in reasonable parameter ranges for the rare earth Tb3+ and for the transition metal Cu2+, and study the possibility to implement Shor's Quantum Error Correction code on such a molecule. We also discuss recently developed molecular systems that could be adequate from an experimental point of view.
PACS: 33.15.Kr – Electric and magnetic moments (and derivatives), polarizability, and magnetic susceptibility / 33.35.+r – Electron resonance and relaxation / 03.67.Pp – Quantum error correction and other methods for protection against decoherence
© EPLA, 2015
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