2011/10/20 by Muir J. Morrison, Andrei Derevianko
Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Hyperfine structure #Ion #Ionization #MAGIC (telescope) #Physics #Quantum #Quantum computer #Quantum decoherence #Quantum mechanics #Quantum optics and atomic interactions #Qubit #Rydberg atom #Rydberg formula #Rydberg state #Trapping #physics.atom-ph
paper · pdf · doi:10.1103/physreva.85.033414
5 pages, 3 figures
arxiv created 2011/10/20 · openalex publication_date 2012/03/12 · arxiv updated 2015/05/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The Rydberg blockade mechanism has shown noteworthy promise for scalable quantum computation with neutral atoms. Both qubit states and gate-mediating Rydberg state belong to the same optically trapped atom. The trapping fields, while being essential, induce detrimental decoherence. Here we theoretically demonstrate that this Stark-induced decoherence may be completely removed using powerful concepts of magic optical traps. We analyze magic trapping of a prototype three-level system: a Rydberg state along with two qubit states: hyperfine states attached to a J=1/2 ground state. Our numerical results show that, while such a magic trap for alkali metals would require prohibitively large magnetic fields, the group IIIB metals such as Al are suitable candidates.