Three-Photon Optical Pumping for Trapped Ion Quantum Computing

Technical Report · Tue Mar 15 04:00:00 EDT 2022

DOI:https://doi.org/10.2172/1854752· OSTI ID:1854752

Hogle, Craig ^[1]; Ivory, Megan ^[1]; Lobser, Daniel ^[1]; Ruzic, Brandon ^[1]; DeRose, Christopher ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

In this report we describe the testing of a novel scheme for state preparation of trapped ions in a quantum computing setup. This technique optimally would allow for similar precision and speed of state preparation while allowing for individual addressability of single ions in a chain using technology already available in a trapped ion experiment. As quantum computing experiments become more complicated, mid-experiment measurements will become necessary to achieve algorithms such as quantum error correction. Any mid-experiment measurement then requires the measured qubit to be re-prepared to a known quantum state. Currently this involves the protected qubits to be moved a sizeable distance away from the qubit being re-prepared which can be costly in terms of experiment length as well as introducing errors. Theoretical calculations predict that a three-photon process would allow for state preparation without qubit movement with similar efficiencies to current state preparation methods.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
• DOE Contract Number: NA0003525
• OSTI ID: 1854752
• Report Number(s): SAND2021-12201R; 700477
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING