Engineering the coupling between molecular spin qubits by coordination chemistry

Grigore A. Timco; Stefano Carretta; Filippo Troiani; Floriana Tuna; Robin J. Pritchard; Christopher A. Muryn; Eric J.L. McInnes; Alberto Ghirri; Andrea Candini; Paolo Santini; Giuseppe Amoretti; Marco Affronte; Richard E.P. Winpenny

doi:10.1038/nnano.2008.404

Engineering the coupling between molecular spin qubits by coordination chemistry

Grigore A. Timco, Stefano Carretta, Filippo Troiani, Floriana Tuna, Robin J. Pritchard, Christopher A. Muryn, Eric J.L. McInnes, Alberto Ghirri, Andrea Candini, Paolo Santini, Giuseppe Amoretti, Marco Affronte, Richard E.P. Winpenny

Research output: Contribution to journal › Article › peer-review

Abstract

The ability to assemble weakly interacting subsystems is a prerequisite for implementing quantum information processing and generating controlled entanglement. In recent years, molecular nanomagnets have been proposed as suitable candidates for qubit encoding and manipulation. In particular, antiferromagnetic Cr7Ni rings behave as effective spin-1/2 systems at low temperature and show long decoherence times. Here, we show that these rings can be chemically linked to each other and that the coupling between their spins can be tuned by choosing the linker. We also present calculations that demonstrate how realistic microwave pulse sequences could be used to generate maximally entangled states in such molecules.

Original language	English
Pages (from-to)	173-178
Number of pages	6
Journal	Nature Nanotechnology
Volume	4
Issue number	3
DOIs	https://doi.org/10.1038/nnano.2008.404
Publication status	Published - 2009

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title = "Engineering the coupling between molecular spin qubits by coordination chemistry",

abstract = "The ability to assemble weakly interacting subsystems is a prerequisite for implementing quantum information processing and generating controlled entanglement. In recent years, molecular nanomagnets have been proposed as suitable candidates for qubit encoding and manipulation. In particular, antiferromagnetic Cr7Ni rings behave as effective spin-1/2 systems at low temperature and show long decoherence times. Here, we show that these rings can be chemically linked to each other and that the coupling between their spins can be tuned by choosing the linker. We also present calculations that demonstrate how realistic microwave pulse sequences could be used to generate maximally entangled states in such molecules.",

author = "Timco, {Grigore A.} and Stefano Carretta and Filippo Troiani and Floriana Tuna and Pritchard, {Robin J.} and Muryn, {Christopher A.} and McInnes, {Eric J.L.} and Alberto Ghirri and Andrea Candini and Paolo Santini and Giuseppe Amoretti and Marco Affronte and Winpenny, {Richard E.P.}",

year = "2009",

doi = "10.1038/nnano.2008.404",

language = "English",

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pages = "173--178",

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AU - Timco, Grigore A.

AU - Carretta, Stefano

AU - Troiani, Filippo

AU - Tuna, Floriana

AU - Pritchard, Robin J.

AU - Muryn, Christopher A.

AU - McInnes, Eric J.L.

AU - Ghirri, Alberto

AU - Candini, Andrea

AU - Santini, Paolo

AU - Amoretti, Giuseppe

AU - Affronte, Marco

AU - Winpenny, Richard E.P.

PY - 2009

Y1 - 2009

N2 - The ability to assemble weakly interacting subsystems is a prerequisite for implementing quantum information processing and generating controlled entanglement. In recent years, molecular nanomagnets have been proposed as suitable candidates for qubit encoding and manipulation. In particular, antiferromagnetic Cr7Ni rings behave as effective spin-1/2 systems at low temperature and show long decoherence times. Here, we show that these rings can be chemically linked to each other and that the coupling between their spins can be tuned by choosing the linker. We also present calculations that demonstrate how realistic microwave pulse sequences could be used to generate maximally entangled states in such molecules.

AB - The ability to assemble weakly interacting subsystems is a prerequisite for implementing quantum information processing and generating controlled entanglement. In recent years, molecular nanomagnets have been proposed as suitable candidates for qubit encoding and manipulation. In particular, antiferromagnetic Cr7Ni rings behave as effective spin-1/2 systems at low temperature and show long decoherence times. Here, we show that these rings can be chemically linked to each other and that the coupling between their spins can be tuned by choosing the linker. We also present calculations that demonstrate how realistic microwave pulse sequences could be used to generate maximally entangled states in such molecules.

U2 - 10.1038/nnano.2008.404

DO - 10.1038/nnano.2008.404

M3 - Article

SN - 1748-3387

VL - 4

SP - 173

EP - 178

JO - Nature Nanotechnology

JF - Nature Nanotechnology

IS - 3

ER -

Engineering the coupling between molecular spin qubits by coordination chemistry

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