Ultracold Molecules as Qudits [dataset]

Blackmore, Jacob A. (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, South Road, Durham DH1 3LE, United Kingdom.); Sawant, Rahul (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, South Road, Durham DH1 3LE, United Kingdom.); Cornish, Simon L. (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, South Road, Durham DH1 3LE, United Kingdom.); Gregory, Philip D. (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, South Road, Durham DH1 3LE, United Kingdom.); Hutson, Jeremy M. (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Chemistry,Durham University, South Road, Durham, United Kingdom.); Tarbutt, M R (Centre for Cold Matter, Blackett Laboratory, Imperial College London, Prince Consort Road, London, United Kingdom); Mur-Petit, Jordi (Clarendon Laboratory, University of Oxford, Parks Rd, Oxford OX1 3PU, United Kingdom); Jaksch, Dieter (Clarendon Laboratory, University of Oxford, Parks Rd, Oxford ,United Kingdom.); Aldegunde, Jesùs (Departamento de Quimica Fisica, Universidad de Salamanca, Salamanca, Spain.)

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Ultracold Molecules as Qudits [dataset] Open Access

We discuss how the internal structure of ultracold molecules, trapped in the motional ground state of optical tweezers, can be used to implement qudits. We explore the rotational, fine and hyperfine structure of $^{40}$Ca$^{19}$F and $^{87}$Rb$^{133}$Cs, which are examples of molecules with $^2\Sigma$ and $^1\Sigma$ electronic ground states, respectively. In each case we identify a subset of levels within a single rotational manifold suitable to implement a 4-level qudit. Quantum gates can be implemented using two-photon microwave transitions via levels in a neighboring rotational manifold. We discuss limitations to the usefulness of molecular qudits, arising from off-resonant excitation and decoherence. As an example, we present a protocol for using a molecular qudit of dimension $d=4$ to perform the Deutsch algorithm.

Descriptions

Resource type: Dataset
Contributors: Creator: Sawant, Rahul ¹
Data collector: Sawant, Rahul ¹
Creator: Blackmore, Jacob A. ¹
Contact person: Blackmore, Jacob A. ¹
Gregory, Philip D. ¹
Mur-Petit, Jordi ²
Jaksch, Dieter ³
Aldegunde, Jesùs ⁴
Hutson, Jeremy M. ⁵
Tarbutt, M R ⁶
Cornish, Simon L. ¹

¹ Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, South Road, Durham DH1 3LE, United Kingdom.
² Clarendon Laboratory, University of Oxford, Parks Rd, Oxford OX1 3PU, United Kingdom
³ Clarendon Laboratory, University of Oxford, Parks Rd, Oxford ,United Kingdom.
⁴ Departamento de Quimica Fisica, Universidad de Salamanca, Salamanca, Spain.
⁵ Joint Quantum Centre (JQC) Durham-Newcastle, Department of Chemistry,Durham University, South Road, Durham, United Kingdom.
⁶ Centre for Cold Matter, Blackett Laboratory, Imperial College London, Prince Consort Road, London, United Kingdom
Funder: Engineering and Physical Sciences Research Council
Research methods
Other description
Keyword: Qudits
Quantum Computation
Ultracold Molecules
Physics
RbCs
CaF
Subject: Physics
Quantum computing
Location
Language: English
Cited in
Identifier: ark:/32150/r1sn009x78c
doi:10.15128/r1sn009x78c
Rights: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA)
Publisher: Durham University
Date Created

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Depositor: J.A. Blackmore
Date Uploaded: 16 September 2019, 21:09:26
Date Modified: 24 September 2019, 16:09:47
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File size: 14620562

Last modified: 2019:09:16 22:52:58+01:00

Filename: Data_and_related_files_Qudits.zip

Original checksum: 3f7467ef9195af8680c678dfc2d9c42a

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