2026-09-19T10:46:52Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/1273182021-07-05T14:03:20Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Kevin P. O'Brien.
Ye, Yufeng,S.M.Massachusetts Institute of Technology.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2020-09-15T21:51:56Z
2020-09-15T21:51:56Z
2020
2020
https://hdl.handle.net/1721.1/127318
1191906022
Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, May, 2020
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 59-62).
In this thesis, we show the principles and applications of a new technique we call "nonlinearity engineering" using a recent superconducting qubit, the Quarton. In traditional nonlinear optics, nonlinear effects are usually weak perturbations to linear interactions. Similarly, microwave quantum optics with superconducting circuits relies on the Josephson junction for a negative Kerr nonlinearity that is much weaker than its associated linear energy. Recently, a new superconducting qubit known as the "Quarton" can offer non-perturbatively strong nonlinearity. Here, we demonstrate the general principle of using the Quarton's positive Kerr and zero linear energy to perform nonlinearity engineering, i.e. the selective design of the nonlinear properties of microwave artificial atoms, metamaterials, and photons in a manner that (to the best of our knowledge) has no optical analog. We show that for Quarton mediated light-matter coupling, the Quarton can erase or amplify the nonlinearity of artificial atoms and metamaterials. Without nonlinearity, matter behaves light-like and we find (to our best knowledge) the first theoretical demonstration of cross-Kerr between linear microwave photon modes. We extend these fundamental results and provide a practical application by designing a Josephson traveling wave photon detector
by Yufeng Ye.
S.M.
S.M. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science
62 pages
eng
Massachusetts Institute of Technology
MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.
http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
Nonlinearity engineering with the Quarton
Thesis
application/pdf
2020-09-15T21:51:55Z
Publication
Master
EECS
unknown
unknown
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