Trapping, detection and manipulation of single Rb atoms in an optical dipole trap using a long-focus objective lens

I. I. Beterov, E. A. Yakshina, D. B. Tretyakov, V. M. Entin, U. Singh, Ya V. Kudlaev, K. Yu Mityanin, K. A. Panov, N. V. Alyanova, C. Andreeva, I. I. Ryabtsev

Research output: Contribution to journalConference articlepeer-review

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 languageEnglish
Article number012049
JournalJournal of Physics: Conference Series
Volume1859
Issue number1
DOIs
Publication statusPublished - 9 Apr 2021
Event21st International Conference and School on Quantum Electronics: Laser Physics and Applications, ICSQE 2020 - Virtual, Online
Duration: 21 Sep 202025 Sep 2020

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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