Switchable Interaction in Molecular Double Qubits

Jesús Ferrando-Soria; Samantha A. Magee; Alessandro Chiesa; Stefano Carretta; Paolo Santini; Iñigo J. Vitorica-Yrezabal; Floriana Tuna; George F S Whitehead; Stephen Sproules; Kyle M. Lancaster; Anne Laure Barra; Grigore A. Timco; Eric J L McInnes; Richard E P Winpenny

doi:10.1016/j.chempr.2016.10.001

Switchable Interaction in Molecular Double Qubits

Jesús Ferrando-Soria, Samantha A. Magee, Alessandro Chiesa, Stefano Carretta, Paolo Santini, Iñigo J. Vitorica-Yrezabal, Floriana Tuna, George F S Whitehead, Stephen Sproules, Kyle M. Lancaster, Anne Laure Barra, Grigore A. Timco, Eric J L McInnes, Richard E P Winpenny^*

^*Corresponding author for this work

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

Abstract

Quantum information processing (QIP) could revolutionize how we simulate and understand quantum systems. Any QIP scheme requires both individual units (qubits) that have long phase memories and switchable units that can be placed between the qubits. Here, we describe supramolecular systems where {Cr₇Ni} rings are used as qubits, linked by redox-switchable {Ru₂M} oxo-centered triangles (M = Zn, Ni, or Co). The supramolecular assemblies have been structurally characterized and involve two {Cr₇Ni} rings bound to {Ru₂M} triangles through iso-nicotinate ligands. Detailed physical studies, including electrochemistry and electron paramagnetic resonance spectroscopy, show that when M = Co, the supramolecular assembly has the physical characteristics needed to implement the √iSWAP gate, which is an important entangling two-qubit gate. Detailed simulations show that the fidelity of this gate is potentially very high and depends on the phase memory time of the {Cr₇Ni} qubits but not the {Ru₂Co} switch.

Original language	English
Pages (from-to)	727-752
Number of pages	26
Journal	Chem
Volume	1
Issue number	5
DOIs	https://doi.org/10.1016/j.chempr.2016.10.001
Publication status	Published - 10 Nov 2016

Keywords

SDG9: Industry, innovation, and infrastructure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.chempr.2016.10.001Licence: CC BY

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@article{eb5eac0253a043ddb988e309f5f653eb,

title = "Switchable Interaction in Molecular Double Qubits",

abstract = "Quantum information processing (QIP) could revolutionize how we simulate and understand quantum systems. Any QIP scheme requires both individual units (qubits) that have long phase memories and switchable units that can be placed between the qubits. Here, we describe supramolecular systems where {Cr7Ni} rings are used as qubits, linked by redox-switchable {Ru2M} oxo-centered triangles (M = Zn, Ni, or Co). The supramolecular assemblies have been structurally characterized and involve two {Cr7Ni} rings bound to {Ru2M} triangles through iso-nicotinate ligands. Detailed physical studies, including electrochemistry and electron paramagnetic resonance spectroscopy, show that when M = Co, the supramolecular assembly has the physical characteristics needed to implement the √iSWAP gate, which is an important entangling two-qubit gate. Detailed simulations show that the fidelity of this gate is potentially very high and depends on the phase memory time of the {Cr7Ni} qubits but not the {Ru2Co} switch.",

keywords = "SDG9: Industry, innovation, and infrastructure",

author = "Jes{\'u}s Ferrando-Soria and Magee, {Samantha A.} and Alessandro Chiesa and Stefano Carretta and Paolo Santini and Vitorica-Yrezabal, {I{\~n}igo J.} and Floriana Tuna and Whitehead, {George F S} and Stephen Sproules and Lancaster, {Kyle M.} and Barra, {Anne Laure} and Timco, {Grigore A.} and McInnes, {Eric J L} and Winpenny, {Richard E P}",

year = "2016",

month = nov,

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doi = "10.1016/j.chempr.2016.10.001",

language = "English",

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journal = "Chem",

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T1 - Switchable Interaction in Molecular Double Qubits

AU - Ferrando-Soria, Jesús

AU - Magee, Samantha A.

AU - Chiesa, Alessandro

AU - Carretta, Stefano

AU - Santini, Paolo

AU - Vitorica-Yrezabal, Iñigo J.

AU - Tuna, Floriana

AU - Whitehead, George F S

AU - Sproules, Stephen

AU - Lancaster, Kyle M.

AU - Barra, Anne Laure

AU - Timco, Grigore A.

AU - McInnes, Eric J L

AU - Winpenny, Richard E P

PY - 2016/11/10

Y1 - 2016/11/10

N2 - Quantum information processing (QIP) could revolutionize how we simulate and understand quantum systems. Any QIP scheme requires both individual units (qubits) that have long phase memories and switchable units that can be placed between the qubits. Here, we describe supramolecular systems where {Cr7Ni} rings are used as qubits, linked by redox-switchable {Ru2M} oxo-centered triangles (M = Zn, Ni, or Co). The supramolecular assemblies have been structurally characterized and involve two {Cr7Ni} rings bound to {Ru2M} triangles through iso-nicotinate ligands. Detailed physical studies, including electrochemistry and electron paramagnetic resonance spectroscopy, show that when M = Co, the supramolecular assembly has the physical characteristics needed to implement the √iSWAP gate, which is an important entangling two-qubit gate. Detailed simulations show that the fidelity of this gate is potentially very high and depends on the phase memory time of the {Cr7Ni} qubits but not the {Ru2Co} switch.

AB - Quantum information processing (QIP) could revolutionize how we simulate and understand quantum systems. Any QIP scheme requires both individual units (qubits) that have long phase memories and switchable units that can be placed between the qubits. Here, we describe supramolecular systems where {Cr7Ni} rings are used as qubits, linked by redox-switchable {Ru2M} oxo-centered triangles (M = Zn, Ni, or Co). The supramolecular assemblies have been structurally characterized and involve two {Cr7Ni} rings bound to {Ru2M} triangles through iso-nicotinate ligands. Detailed physical studies, including electrochemistry and electron paramagnetic resonance spectroscopy, show that when M = Co, the supramolecular assembly has the physical characteristics needed to implement the √iSWAP gate, which is an important entangling two-qubit gate. Detailed simulations show that the fidelity of this gate is potentially very high and depends on the phase memory time of the {Cr7Ni} qubits but not the {Ru2Co} switch.

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VL - 1

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JO - Chem

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ER -

Switchable Interaction in Molecular Double Qubits

Abstract

Keywords

UN SDGs

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CCDC 1429638: Experimental Crystal Structure Determination

CCDC 1429637: Experimental Crystal Structure Determination

CCDC 1430001: Experimental Crystal Structure Determination

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Switchable Interaction in Molecular Double Qubits

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

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Datasets

CCDC 1429638: Experimental Crystal Structure Determination

CCDC 1429637: Experimental Crystal Structure Determination

CCDC 1430001: Experimental Crystal Structure Determination

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