Geometric Manipulation of a Decoherence-Free Subspace in Atomic Ensembles

We consider an ensemble of atoms with \(\Lambda\)-type level structure trapped in a single-mode cavity, and propose a geometric scheme of coherent manipulation of quantum states on the subspace of zero-energy states within the quantum Zeno subspace of the system. We find that the particular subspace...

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Bibliographic Details
Published inarXiv.org
Main Authors Chen, Dongni, Luo, Si, Ying-Dan, Wang, Chesi, Stefano, Mahn-Soo Choi
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 14.03.2021
Subjects
Physics - Atomic Physics
Physics - Quantum Physics
Subspaces
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Summary:We consider an ensemble of atoms with \(\Lambda\)-type level structure trapped in a single-mode cavity, and propose a geometric scheme of coherent manipulation of quantum states on the subspace of zero-energy states within the quantum Zeno subspace of the system. We find that the particular subspace inherits the decoherence-free nature of the quantum Zeno subspace and features a symmetry-protected degeneracy, fulfilling all the conditions for a universal scheme of arbitrary unitary operations on it.
Bibliography:SourceType-Working Papers-1
ObjectType-Working Paper/Pre-Print-1
content type line 50
ISSN:2331-8422
DOI:10.48550/arxiv.2103.07907