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Integrating Superconducting Qubits with Quantum Fluids and Surface Acoustic Wave Devices.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Integrating Superconducting Qubits with Quantum Fluids and Surface Acoustic Wave Devices./
Author:	Lane, Justin R.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	271 p.
Notes:	Source: Dissertations Abstracts International, Volume: 83-02, Section: B.
Contained By:	Dissertations Abstracts International83-02B.
Subject:	Condensed matter physics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28549234
ISBN:	9798534652376

Integrating Superconducting Qubits with Quantum Fluids and Surface Acoustic Wave Devices.
Lane, Justin R.

Integrating Superconducting Qubits with Quantum Fluids and Surface Acoustic Wave Devices. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 271 p.

Source: Dissertations Abstracts International, Volume: 83-02, Section: B.

Thesis (Ph.D.)--Michigan State University, 2021.

This item must not be sold to any third party vendors.

Superconducting qubits, mesoscopic superconducting circuits with a single quantum co- herent degree of freedom, have emerged as both a promising platform for quantum compu- tation and a versatile tool for creating hybrid systems with quantum mechanical degrees of freedom. In this dissertation, we report on several experiments investigating the coupling of superconducting 3D transmon qubits to two different systems: superfluid helium and piezo- electrically actuated surface acoustic waves (SAWs). We report the first measurements of superconducting qubits in the presence of superfluid helium, studying the spectroscopic and decoherence properties of this combined system. We analyze the spectroscopic properties of this composite system using the framework of circuit quantum electrodynamics, and in the presence of superfluid helium we observe modest increases in the pure dephasing time. We attribute this to improved thermalization of the microwave environment via the superfluid, raising hopes that thermalization mediated by superfluid helium may be a resource for ex- periments employing superconducting circuits. We also present ongoing work developing a new capacitive coupling scheme for creating hybrid superconducting qubit-SAW resonators. The tools developed to model and implement this experiment lay the groundwork for future experiments to achieve robust coupling between 3D transmon qubits and surface acoustic wave devices. Finally, we present results describing the first measurements of SAW induced transport in exfoliated graphene devices.

ISBN: 9798534652376Subjects--Topical Terms:

3173567
Condensed matter physics.
Subjects--Index Terms:

Graphene

Integrating Superconducting Qubits with Quantum Fluids and Surface Acoustic Wave Devices.
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100 1 $a Lane, Justin R. $0 (orcid)0000-0002-8207-9722 $3 3685534
245 1 0 $a Integrating Superconducting Qubits with Quantum Fluids and Surface Acoustic Wave Devices.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2021
300 $a 271 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-02, Section: B.
500 $a Advisor: Pollanen, Johannes.
502 $a Thesis (Ph.D.)--Michigan State University, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Superconducting qubits, mesoscopic superconducting circuits with a single quantum co- herent degree of freedom, have emerged as both a promising platform for quantum compu- tation and a versatile tool for creating hybrid systems with quantum mechanical degrees of freedom. In this dissertation, we report on several experiments investigating the coupling of superconducting 3D transmon qubits to two different systems: superfluid helium and piezo- electrically actuated surface acoustic waves (SAWs). We report the first measurements of superconducting qubits in the presence of superfluid helium, studying the spectroscopic and decoherence properties of this combined system. We analyze the spectroscopic properties of this composite system using the framework of circuit quantum electrodynamics, and in the presence of superfluid helium we observe modest increases in the pure dephasing time. We attribute this to improved thermalization of the microwave environment via the superfluid, raising hopes that thermalization mediated by superfluid helium may be a resource for ex- periments employing superconducting circuits. We also present ongoing work developing a new capacitive coupling scheme for creating hybrid superconducting qubit-SAW resonators. The tools developed to model and implement this experiment lay the groundwork for future experiments to achieve robust coupling between 3D transmon qubits and surface acoustic wave devices. Finally, we present results describing the first measurements of SAW induced transport in exfoliated graphene devices.
590 $a School code: 0128.
650 4 $a Condensed matter physics. $3 3173567
650 4 $a Quantum physics. $3 726746
650 4 $a Circuits. $3 3555093
650 4 $a Simulation. $3 644748
650 4 $a Noise. $3 598816
650 4 $a Helium. $3 766076
650 4 $a Spectrum analysis. $3 520440
650 4 $a Graphene. $3 1569149
650 4 $a Surface acoustic waves. $3 3685535
653 $a Graphene
653 $a Superconducting qubits
653 $a Superfluid helium
653 $a Surface acoustic waves
690 $a 0611
690 $a 0599
710 2 $a Michigan State University. $b Physics - Doctor of Philosophy. $3 2096747
773 0 $t Dissertations Abstracts International $g 83-02B.
790 $a 0128
791 $a Ph.D.
792 $a 2021
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28549234