Eliminating qubit type cross-talk in the \(\textit{omg}\) protocol

The \(\textit{omg}\) protocol is a promising paradigm that uses multiple, application-specific qubit subspaces within the Hilbert space of each single atom during quantum information processing. A key assumption for \(\textit{omg}\) operation is that a subspace can be accessed independently without...

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Bibliographic Details
Published inarXiv.org
Main Authors Vizvary, Samuel R, Wall, Zachary J, Boguslawski, Matthew J, Bareian, Michael, Derevianko, Andrei, Campbell, Wesley C, Hudson, Eric R
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 17.10.2023
Subjects
Crosstalk
Data processing
Hilbert space
Laser applications
Noise intensity
Quantum phenomena
Qubits (quantum computing)
Subspaces
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Summary:The \(\textit{omg}\) protocol is a promising paradigm that uses multiple, application-specific qubit subspaces within the Hilbert space of each single atom during quantum information processing. A key assumption for \(\textit{omg}\) operation is that a subspace can be accessed independently without deleterious effects on information stored in other subspaces. We find that intensity noise during laser-based quantum gates in one subspace can cause decoherence in other subspaces, potentially complicating \(\textit{omg}\) operation. We show, however, that a magnetic-field-induced vector light shift can be used to eliminate this source of decoherence. As this technique requires simply choosing a certain, magnetic field dependent, polarization for the gate lasers it is straightforward to implement and potentially helpful for \(\textit{omg}\) based quantum technology.
ISSN:2331-8422
DOI:10.48550/arxiv.2310.10905