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RESERVOIR ENGINEERING OF MULTI-PHOTON STATES IN CIRCUIT QUANTUM ELECTRODYNAMICS

Abstract
The field of experimental quantum information has made significant progress towards useful computation but has been handicapped by the dissipative nature of physical qubits. Except for unwieldy and unrealized topological qubits, all quantum information systems experience natural dissipation, which limits the time scale for useful computation. However, this same dissipation, which induces errors requiring quantum error correction (QEC), can be used as a resource to perform a variety of important and unrealized tasks. In this thesis I discuss research into three uses of dissipation: manifold stabilization, state transfer, and QEC. With reservoir engineering, these tasks can be addressed in an autonomous, non-reciprocal, and hardware-efficient manner, improving on existing implementations in important ways. I discuss experimental results from a novel method of QEC and the use manifold stabilization to make a previously unrealized quantum state. These three lines of inquiry have potential for additional research, such as improving experimental designs, incorporating existing schemes in parallel with the experiments described here, and highlighting the need for additional theoretical work.
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dissertation
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http://creativecommons.org/licenses/by/4.0/
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