@article{df443f127230419d9112845d9b167c5d,
title = "Geometric manipulation of a decoherence-free subspace in atomic ensembles",
abstract = "We consider an ensemble of atoms with ?-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. ",
author = "Dongni Chen and Si Luo and Wang, {Ying Dan} and Stefano Chesi and Choi, {Mahn Soo}",
note = "Funding Information: Y.-D.W. acknowledges support by the National Key R&D Program of China under Grant No. 2017YFA0304503, and the Peng Huanwu Theoretical Physics Renovation Center under Grant No. 12047503. S.C. acknowledges support from NSFC (Grants No. 11974040 and No. 12150610464), and NSAF (Grant No. U1930402). M.-S.C. has been supported by the National Research Function (NRF) of Korea (Grants No. 2017R1E1A1A03070681 and No. 2018R1A4A1024157) and by the Ministry of Education through the BK21 Four program. Publisher Copyright: {\textcopyright} 2022 American Physical Society. ",
year = "2022",
month = feb,
doi = "10.1103/PhysRevA.105.022627",
language = "English",
volume = "105",
journal = "Physical Review A - Atomic, Molecular, and Optical Physics",
issn = "1050-2947",
publisher = "American Physical Society",
number = "2",
}