2012/08/31 by Weibin Li, A. W. Glaetzle, Alexander W. Glaetzle +3
Computer Science · Physics and Astronomy · #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Excited state #Ion #Ionization #Physics #Quantum #Quantum Information and Cryptography #Quantum computer #Quantum gate #Quantum mechanics #Rydberg atom #Rydberg formula #Spectroscopy and Quantum Chemical Studies #physics.atom-ph #quant-ph
paper · pdf · doi:10.1103/physreva.87.052304
published as Phys. Rev. A 87, 052304 (2013) · 7 pages and 5 figures
arxiv created 2012/12/19 · openalex publication_date 2013/05/06 · arxiv updated 2013/05/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present a mechanism that permits the parallel execution of multiple quantum gate operations within a single long linear ion chain. Our approach is based on large coherent forces that occur when ions are electronically excited to long-lived Rydberg states. The presence of Rydberg ions drastically affects the vibrational mode structure of the ion crystal, giving rise to modes that are spatially localized on isolated subcrystals which can be individually and independently manipulated. We theoretically discuss this Rydberg mode shaping in an experimentally realistic setup and illustrate its power by analyzing the fidelity of two conditional phase flip gates executed in parallel. The ability to dynamically shape vibrational modes on the single-ion level might find applications in quantum simulators and quantum computation architectures.