Universität zu Köln

Salari, Alan and Darvazehban, Amin ORCID: 0000-0001-8024-3472 (2019). A Spiral Surface Acoustic Wave Transducer for Quantum Information Processing. J. Low Temp. Phys., 195 (1-2). S. 138 - 153. NEW YORK: SPRINGER/PLENUM PUBLISHERS. ISSN 1573-7357

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Abstract

A superconducting surface acoustic wave transducer with a spiral geometry is proposed. This transducer is particularly useful for quantum information processing at cryogenic temperatures. Compared to an interdigital transducer, which launches acoustic waves in two directions, a spiral transducer (SPT) is capable of launching waves in four directions. This property allows to utilize the substrate surface in a more efficient way due to the transition from a line to a surface. Most importantly this kind of transducer gives us new possibilities for quantum information processing, since it can be used as a superconducting transmon qubit, which can be simultaneously coupled to two acoustic cavities. Moreover, it can be used for acoustic transport of quantum dot qubits, which could improve the means for long-range coupling of the qubits. The SPT has been simulated using COMSOL simulator, and it is also modeled using P-matrix and delta function model.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Salari, Alan UNSPECIFIED UNSPECIFIED UNSPECIFIED Darvazehban, Amin UNSPECIFIED orcid.org/0000-0001-8024-3472 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-151506
DOI:	10.1007/s10909-019-02145-2
Journal or Publication Title:	J. Low Temp. Phys.
Volume:	195
Number:	1-2
Page Range:	S. 138 - 153
Date:	2019
Publisher:	SPRINGER/PLENUM PUBLISHERS
Place of Publication:	NEW YORK
ISSN:	1573-7357
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Physics, Applied; Physics, Condensed Matter Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/15150