L
L. W. Smith
Researcher at University of Cambridge
Publications - 34
Citations - 878
L. W. Smith is an academic researcher from University of Cambridge. The author has contributed to research in topics: Quantum wire & Multiplexer. The author has an hindex of 13, co-authored 34 publications receiving 741 citations. Previous affiliations of L. W. Smith include National Cheng Kung University & University of Wisconsin-Madison.
Papers
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Journal ArticleDOI
All-electric all-semiconductor spin field-effect transistors
Pojen Chuang,Sheng-Chin Ho,L. W. Smith,Francois Sfigakis,Michael Pepper,Chin-Hung Chen,Ju-Chun Fan,J. Griffiths,Ian Farrer,Harvey E. Beere,Gac Jones,David A. Ritchie,T-M Chen +12 more
TL;DR: An all-electric and all-semiconductor spin field-effect transistor in which distinct engineering architectures of spin-orbit coupling are exploited for the quantum point contacts and the central semiconductor channel to achieve complete control of the electron spins in a purely electrical manner.
Journal ArticleDOI
Extending the coherence of a quantum dot hybrid qubit
Brandur Thorgrimsson,Dohun Kim,Yuan-Chi Yang,L. W. Smith,L. W. Smith,Christie Simmons,Daniel R. Ward,Daniel R. Ward,Ryan H. Foote,J. Corrigan,Donald E. Savage,Max G. Lagally,Mark Friesen,Susan Coppersmith,Mark A. Eriksson +14 more
TL;DR: In this article, the authors show that the free induction decay time and the Rabi decay rate of the quantum dot hybrid qubit can be increased by tuning the qubit parameters and operating points.
Journal ArticleDOI
Extending the coherence of a quantum dot hybrid qubit
Brandur Thorgrimsson,Dohun Kim,Yuan-Chi Yang,L. W. Smith,L. W. Smith,Christie Simmons,Daniel R. Ward,Daniel R. Ward,Ryan H. Foote,J. Corrigan,Donald E. Savage,Max G. Lagally,Mark Friesen,Susan Coppersmith,Mark A. Eriksson +14 more
TL;DR: In this paper, it was shown that the Rabi decay rate of the quantum dot hybrid qubit can be increased by tuning the qubit parameters and operating points, and the spin-like regime of this qubit was used to achieve a Ramsey decay time of $177~\mathrm{ns}
Journal ArticleDOI
Row coupling in an interacting quasi-one-dimensional quantum wire investigated using transport measurements
L. W. Smith,W. K. Hew,Kalarikad Thomas,Michael Pepper,Ian Farrer,David F. Anderson,G. A. C. Jones,David A. Ritchie +7 more
TL;DR: In this paper, the Coulomb interaction distorts the ground state, leading to the bifurcation of the electronic system into two rows, and evidence of finite coupling between the rows, resulting in bonding and antibonding states, is observed.
Journal ArticleDOI
Cryogenic on-chip multiplexer for the study of quantum transport in 256 split-gate devices
H. Al-Taie,L. W. Smith,B Xu,Patrick See,J. Griffiths,Harvey E. Beere,Gac Jones,David A. Ritchie,Michael Kelly,Charles G. Smith +9 more
TL;DR: In this paper, a multiplexer is used to contact an array of 256 split gates on a GaAs/AlGaAs heterostructure, in which each split gate can be measured individually, leading to the appearance of conductance plateaux at intervals of 2e2/h.