Multi-site integrated optical addressing of trapped ions

Kwon, Joonhyuk; Setzer, William J.; Gehl, Michael; Karl, Nicholas; Van Der Wall, Jay; Law, Ryan; Blain, Matthew G.; Stick, Daniel; McGuinness, Hayden J.

doi:10.1038/s41467-024-47882-5

Multi-site integrated optical addressing of trapped ions

Journal Article · Thu May 02 00:00:00 EDT 2024 · Nature Communications

DOI:https://doi.org/10.1038/s41467-024-47882-5· OSTI ID:2469920

; ; ; ; Van Der Wall, Jay; Law, Ryan; Blain, Matthew G.; ;

Abstract

One of the most effective ways to advance the performance of quantum computers and quantum sensors is to increase the number of qubits or quantum resources in the system. A major technical challenge that must be solved to realize this goal for trapped-ion systems is scaling the delivery of optical signals to many individual ions. In this paper we demonstrate an approach employing waveguides and multi-mode interferometer splitters to optically address multiple¹⁷¹Yb⁺ions in a surface trap by delivering all wavelengths required for full qubit control. Measurements of hyperfine spectra and Rabi flopping were performed on the E2 clock transition, using integrated waveguides for delivering the light needed for Doppler cooling, state preparation, coherent operations, and detection. We describe the use of splitters to address multiple ions using a single optical input per wavelength and use them to demonstrate simultaneous Rabi flopping on two different transitions occurring at distinct trap sites. This work represents an important step towards the realization of scalable integrated photonics for atomic clocks and trapped-ion quantum information systems.

View Accepted Manuscript (DOE)

Research Organization:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003525

OSTI ID:: 2469920

Alternate ID(s):: OSTI ID: 2478380

Journal Information:: Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 15; ISSN 2041-1723

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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