Abstract
Single alkali-metal atoms in arrays of optical dipole traps represent a quantum register that can be used for quantum computation and simulation based on short-term Rydberg excitations, which switch the interactions between qubits. To load single atoms into optical dipole traps and then detect them by resonance fluorescence, lenses with a large numerical aperture (NA > 0.5) inside a vacuum chamber and expensive EMCCD cameras are commonly used. We present our recent experimental results on demonstrating the trapping of single 87Rb atoms using a long-focus objective lens with a low numerical aperture (NA = 0.172) placed outside the vacuum chamber, and detecting single atoms with a low-cost sCMOS camera. We also present our current results on implementing a single-qubit gate based on optical pumping and subsequent microwave transition between two hyperfine sublevels of a single 87Rb atom with fidelity near 95%.
Original language | English |
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Article number | 012049 |
Journal | Journal of Physics: Conference Series |
Volume | 1859 |
Issue number | 1 |
DOIs | |
Publication status | Published - 9 Apr 2021 |
Event | 21st International Conference and School on Quantum Electronics: Laser Physics and Applications, ICSQE 2020 - Virtual, Online Duration: 21 Sep 2020 → 25 Sep 2020 |
OECD FOS+WOS
- 1.03 PHYSICAL SCIENCES AND ASTRONOMY