Eliminating qubit type cross-talk in the $\textit{omg}$ protocol
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866910558363582464 |
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| author | Vizvary, Samuel R. Wall, Zachary J. Boguslawski, Matthew J. Bareian, Michael Derevianko, Andrei Campbell, Wesley C. Hudson, Eric R. |
| author_facet | Vizvary, Samuel R. Wall, Zachary J. Boguslawski, Matthew J. Bareian, Michael Derevianko, Andrei Campbell, Wesley C. Hudson, Eric R. |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_10905 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Eliminating qubit type cross-talk in the $\textit{omg}$ protocol Vizvary, Samuel R. Wall, Zachary J. Boguslawski, Matthew J. Bareian, Michael Derevianko, Andrei Campbell, Wesley C. Hudson, Eric R. Quantum Physics Atomic Physics 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. |
| title | Eliminating qubit type cross-talk in the $\textit{omg}$ protocol |
| topic | Quantum Physics Atomic Physics |
| url | https://arxiv.org/abs/2310.10905 |