Electro-optic devices for quantum transduction
Abstract/Contents
- Abstract
- Quantum computers are a fundamentally new type of supercomputer which have the potential to make major impacts in drug discovery, material science, cryptography and machine learning. Connecting quantum computers together into a quantum network opens up even more applications, such as secure communication and enhanced sensing, and provides a path to scaling quantum computers to larger numbers of qubits. In order to connect quantum computers over long-distances, we require a new kind of transducer to bridge the gap between the microwave regime, in which the qubits operate, and the optical regime, in which we can use fiber optic communication. This dissertation describes my work towards building a microwave-to-optical transducer, pushing electro-optic modulators towards the quantum limit by combining low-loss optical waveguides with superconducting circuits. This effort led us to explore three different nanophotonic platforms. The first, silicon-on-lithium-niobate, combines the straightforward waveguide fabrication available in silicon with the large electro-optic coefficient of lithium niobate. The second, silicon-organic hybrid, leverages the exceptionally large electro-optic coefficients available in electro-optic polymers. The third, lithium-niobate-on-sapphire, employs waveguides fabricated directly in lithium niobate to further increase performance. Here I describe results from each of these platforms, as well as some of the interesting problems we've had to address along the way, including challenging nanofabrication, cryogenic optical packaging, light-induced quasiparticles, and unintentional piezoelectricity.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2020; ©2020 |
| Publication date | 2020; 2020 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Witmer, Jeremy David |
|---|---|
| Degree supervisor | Safavi-Naeini, Amir H |
| Thesis advisor | Safavi-Naeini, Amir H |
| Thesis advisor | Fejer, Martin M. (Martin Michael) |
| Thesis advisor | Miller, D. A. B |
| Degree committee member | Fejer, Martin M. (Martin Michael) |
| Degree committee member | Miller, D. A. B |
| Associated with | Stanford University, Department of Applied Physics. |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Jeremy D. Witmer. |
|---|---|
| Note | Submitted to the Department of Applied Physics. |
| Thesis | Thesis Ph.D. Stanford University 2020. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2020 by Jeremy David Witmer
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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