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Metrology of Quantum Control and Mea...

Chen, Zijun,

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Metrology of Quantum Control and Measurement in Superconducting Qubits /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Metrology of Quantum Control and Measurement in Superconducting Qubits // Zijun Chen.
作者:	Chen, Zijun,
面頁冊數:	1 electronic resource (241 pages)
附註:	Source: Dissertations Abstracts International, Volume: 79-10, Section: B.
Contained By:	Dissertations Abstracts International79-10B.
標題:	Physics. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10743707
ISBN:	9780355736373

Metrology of Quantum Control and Measurement in Superconducting Qubits /
Chen, Zijun,

Metrology of Quantum Control and Measurement in Superconducting Qubits /Zijun Chen. - 1 electronic resource (241 pages)

Source: Dissertations Abstracts International, Volume: 79-10, Section: B.

Quantum computers have the potential to solve problems which are classically intractable. Superconducting qubits present a promising path to building such a computer. Recent experiments with these qubits have demonstrated the principles of quantum error correction, quantum simulation, quantum annealing, and more. Current research with superconducting qubits is focused on two primary goals: creating a fully fault tolerant logical qubit out of many physical qubits using surface code error correction, and demonstrating an exponential speedup over any classical computer for a well-defined computational problem. To achieve either of these goals requires high precision control of three components: single qubit gates, two qubit gates, and qubit measurement. In this thesis, we use randomized benchmarking to characterize single qubit gates with 99.95% fidelity and two qubit gates wiht 99.5% fidelity in superconducting transmon qubits. In addition, we use standard decoherence measurements as well as newly developed extensions of randomized benchmarking to determine the limiting sources of error. Finally, we explore the surprisingly complicated dynamics of measuring the transmon state through a coupled resonator, and show that fully understanding this process requires breaking a few "standard" assumptions.

English

ISBN: 9780355736373Subjects--Topical Terms:

516296
Physics.
Subjects--Index Terms:

Metrology

Metrology of Quantum Control and Measurement in Superconducting Qubits /
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500 $a Source: Dissertations Abstracts International, Volume: 79-10, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisors: Martinis, John M. Committee members: Sherwin, Mark; van Dam, Wim.
502 $b Ph.D. $c University of California, Santa Barbara $d 2018.
520 $a Quantum computers have the potential to solve problems which are classically intractable. Superconducting qubits present a promising path to building such a computer. Recent experiments with these qubits have demonstrated the principles of quantum error correction, quantum simulation, quantum annealing, and more. Current research with superconducting qubits is focused on two primary goals: creating a fully fault tolerant logical qubit out of many physical qubits using surface code error correction, and demonstrating an exponential speedup over any classical computer for a well-defined computational problem. To achieve either of these goals requires high precision control of three components: single qubit gates, two qubit gates, and qubit measurement. In this thesis, we use randomized benchmarking to characterize single qubit gates with 99.95% fidelity and two qubit gates wiht 99.5% fidelity in superconducting transmon qubits. In addition, we use standard decoherence measurements as well as newly developed extensions of randomized benchmarking to determine the limiting sources of error. Finally, we explore the surprisingly complicated dynamics of measuring the transmon state through a coupled resonator, and show that fully understanding this process requires breaking a few "standard" assumptions.
546 $a English
590 $a School code: 0035
650 4 $a Physics. $3 516296
650 4 $a Condensed matter physics. $3 3173567
653 $a Metrology
653 $a Quantum computing
653 $a Quantum control
653 $a Quantum measurement
653 $a Superconducting qubits
690 $a 0605
690 $a 0611
710 2 $a University of California, Santa Barbara. $b Physics. $e degree granting institution. $3 3771780
720 1 $a Martinis, John M. $e degree supervisor.
773 0 $t Dissertations Abstracts International $g 79-10B.
790 $a 0035
791 $a Ph.D.
792 $a 2018
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10743707