Journal
PHYSICAL REVIEW A
Volume 87, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.87.052304
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Funding
- EPSRC
- ERA-NET CHIST-ERA (R-ION consortium)
- EPSRC [EP/J007854/1] Funding Source: UKRI
- Austrian Science Fund (FWF) [I 755] Funding Source: researchfish
- Engineering and Physical Sciences Research Council [EP/J007854/1] Funding Source: researchfish
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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.
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