Share Email Print
cover

Proceedings Paper • new

Wide-bandgap integrated photonic circuits for interfacing with quantum memories (Conference Presentation)
Author(s): Michael L. Fanto; Tsung-Ju Lu; Hyeongrak Choi; Paul Thomas; John Serafini; Jeffrey Steidle; Christopher C. Tison; Stefan F. Preble; Mohammad Soltani; Dirk Englund; Paul M. Alsing; Kathy-Anne Soderberg

Paper Abstract

Quantum information processing relies on the fundamental property of quantum interference, where the quality of the interference directly correlates to the indistinguishability of the interacting particles. The creation of these indistinguishable particles, photons in this case, has conventionally been accomplished with nonlinear crystals and optical filters to remove spectral distinguishability, albeit sacrificing the number of photons. This research describes the use of an integrated aluminum nitride microring resonator circuit to selectively generate photon pairs at the narrow cavity transmissions, thereby producing spectrally indistinguishable photons in the ultraviolet regime to interact with trapped ion quantum memories. The spectral characteristics of these photons must be carefully controlled for two reasons: (i) interference quality depends on the spectral indistinguishability, and (ii) the wavelength must be strictly controlled to interact with atomic transitions. The specific ion of interest for these trapped ion quantum memories is Ytterbium which has a transition at 369.5 nm with 12.5 GHz offset levels. Ytterbium ions serve as very long lived and stable quantum memories with storage times on the order of 10’s of minutes, compared with photonic quantum memories which are limited to 10-6 to 10-3 seconds. The combination of the long lived atomic memory, integrated photonic circuitry, and the photonic quantum bits are necessary to produce the first quantum information processors. In this seminar, I will present results on ultraviolet wavelength operation, dispersion analysis, and propagation loss in aluminum nitride waveguides.

Paper Details

Date Published: 11 October 2018
PDF
Proc. SPIE 10803, Quantum Information Science and Technology IV, 108030E (11 October 2018); doi: 10.1117/12.2325138
Show Author Affiliations
Michael L. Fanto, Air Force Research Lab. (United States)
Tsung-Ju Lu, Massachusetts Institute of Technology (United States)
Hyeongrak Choi, Massachusetts Institute of Technology (United States)
Paul Thomas, Rochester Institute of Technology (United States)
John Serafini, Rochester Institute of Technology (United States)
Jeffrey Steidle, Rochester Institute of Technology (United States)
Christopher C. Tison, Air Force Research Lab. (United States)
Stefan F. Preble, Rochester Institute of Technology (United States)
Mohammad Soltani, Raytheon BBN Technologies (United States)
Dirk Englund, Massachusetts Institute of Technology (United States)
Paul M. Alsing, Air Force Research Lab. (United States)
Kathy-Anne Soderberg, Air Force Research Lab. (United States)


Published in SPIE Proceedings Vol. 10803:
Quantum Information Science and Technology IV
Mark T. Gruneisen; Miloslav Dusek; John G. Rarity, Editor(s)

© SPIE. Terms of Use
Back to Top