| Autor: |
Blūms V; Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia., Piotrowski M; Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia.; Commonwealth Scientific and Industrial Research Organisation Manufacturing, Pullenvale, Queensland 4069, Australia., Hussain MI; Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia., Norton BG; Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia., Connell SC; Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia.; Commonwealth Scientific and Industrial Research Organisation Manufacturing, Pullenvale, Queensland 4069, Australia., Gensemer S; Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia.; Commonwealth Scientific and Industrial Research Organisation Manufacturing, Pullenvale, Queensland 4069, Australia., Lobino M; Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia.; Queensland Micro and Nanotechnology Centre, Griffith University, Brisbane, Queensland 4111, Australia., Streed EW; Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia.; Institute for Glycomics, Griffith University, Gold Coast, Queensland 4222, Australia. |
| Abstrakt: |
Forces drive all physical interactions. High-sensitivity measurement of the effect of forces enables the quantitative investigation of physical phenomena. Laser-cooled trapped atomic ions are a well-controlled quantum system whose low mass, strong Coulomb interaction, and readily detectable fluorescence signal make them a favorable platform for precision metrology. We demonstrate a three-dimensional sub-attonewton sensitivity force sensor based on a super-resolution imaging of a single trapped ion. The force is detected by measuring the ion's displacement in three dimensions with nanometer precision. Observed sensitivities were 372 ± 9, 347 ± 18, and 808 ± 51 zN/[Formula: see text], corresponding to 24×, 87×, and 21× above the quantum limit. We verified this technique by measuring a 95-zN light pressure force, an important systematic effect in optically based sensors. |
