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Controlling Error-Correctable Bosoni...

Reinhold, Philip.

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Controlling Error-Correctable Bosonic Qubits.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Controlling Error-Correctable Bosonic Qubits./
Author:	Reinhold, Philip.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	270 p.
Notes:	Source: Dissertations Abstracts International, Volume: 81-10, Section: B.
Contained By:	Dissertations Abstracts International81-10B.
Subject:	Applied physics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13896858
ISBN:	9781658491822

Controlling Error-Correctable Bosonic Qubits.
Reinhold, Philip.

Controlling Error-Correctable Bosonic Qubits. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 270 p.

Source: Dissertations Abstracts International, Volume: 81-10, Section: B.

Thesis (Ph.D.)--Yale University, 2019.

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

The harmonic oscillator is a ubiquitous system in physics, describing a wide range of phenomena, both classically and quantum mechanically. While oscillators are relatively straightforward to control classically, they present much more of a challenge in the quantum realm where such systems, modeled as Bosonic modes, have many more degrees of freedom. Controlling Bosonic modes is a crucial task in light of proposals to use these systems to encode quantum information in a way that is protected from noise and dissipation. In this thesis a variety of approaches to controlling such systems are discussed, particularly in the superconducting microwave domain with cavity resonators. In the first part, an experiment demonstrates how a simple dispersively coupled auxiliary system results in universal control, and therefore allows the synthesis of arbitrary manipulations of the system. This approach is employed to create and manipulate states that constitute an error-correctable qubit. The main drawback of this approach is the way in which errors and decoherence present in the auxiliary system are inherited by the oscillator. In the second part, I show how these effects can be suppressed using Hamiltonian engineering to produce a simple form of first-order "fault-tolerance." This approach allows us to demonstrate versions of cavity measurements and manipulations that are protected from dominant error mechanisms.

ISBN: 9781658491822Subjects--Topical Terms:

3343996
Applied physics.
Subjects--Index Terms:

Bosonic qubits

Controlling Error-Correctable Bosonic Qubits.
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245 1 0 $a Controlling Error-Correctable Bosonic Qubits.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 270 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-10, Section: B.
500 $a Advisor: Schoelkopf, Robert J.
502 $a Thesis (Ph.D.)--Yale University, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a The harmonic oscillator is a ubiquitous system in physics, describing a wide range of phenomena, both classically and quantum mechanically. While oscillators are relatively straightforward to control classically, they present much more of a challenge in the quantum realm where such systems, modeled as Bosonic modes, have many more degrees of freedom. Controlling Bosonic modes is a crucial task in light of proposals to use these systems to encode quantum information in a way that is protected from noise and dissipation. In this thesis a variety of approaches to controlling such systems are discussed, particularly in the superconducting microwave domain with cavity resonators. In the first part, an experiment demonstrates how a simple dispersively coupled auxiliary system results in universal control, and therefore allows the synthesis of arbitrary manipulations of the system. This approach is employed to create and manipulate states that constitute an error-correctable qubit. The main drawback of this approach is the way in which errors and decoherence present in the auxiliary system are inherited by the oscillator. In the second part, I show how these effects can be suppressed using Hamiltonian engineering to produce a simple form of first-order "fault-tolerance." This approach allows us to demonstrate versions of cavity measurements and manipulations that are protected from dominant error mechanisms.
590 $a School code: 0265.
650 4 $a Applied physics. $3 3343996
650 4 $a Quantum physics. $3 726746
653 $a Bosonic qubits
653 $a Quantum computing
653 $a Quantum optimal control
653 $a Superconducting qubits
690 $a 0215
690 $a 0599
710 2 $a Yale University. $b Applied Physics. $3 3550035
773 0 $t Dissertations Abstracts International $g 81-10B.
790 $a 0265
791 $a Ph.D.
792 $a 2019
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13896858