2017/01/11 by Chen-Kuan Chou, Carolyn Auchter, Jennifer Lilieholm +4 · 1 citation
Computer Science · Mathematics · Physics and Astronomy · #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Diffraction #Ion #Ion trap #Ion trapping #Limit (mathematics) #Mathematics #Optics #Parabolic reflector #Photon #Physics #Quantum #Quantum Information and Cryptography #Quantum mechanics #Quantum optics and atomic interactions #Qubit #Trap (plumbing) #Trapped ion quantum computer #physics.ins-det #physics.optics
paper · pdf · doi:10.1063/1.4996506
arxiv created 2017/01/11 · openalex publication_date 2017/08/01 · arxiv updated 2017/09/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Efficient fluorescence collection is the most challenging part in remote entangled ion qubit state generation. To address this issue, we developed an ion trap consisting of a reflective parabolic surface and a needle electrode. This parabolic trap design covers a solid angle of 2π steradians and allows precise ion placement at the focal point of the parabola. We measured (39 ± 3)% fluorescence collection from a single ion with this trap and analyzed the mirror optical performance. We observed single ion image spot size of 3.4 times diffraction limit, improved to 2.8 times diffraction limit with the help of an external deformable mirror. The micromotion of the ion is determined to be the limiting factor, and the result is consistent with theoretical calculation.