Authors:
- Nominated as an outstanding Ph.D. thesis by the University of Oxford, Oxford, UK
- Discusses in detail the changes in gate dynamics when leaving adiabatic regime
- Examines in detail how using mixed species affects gate fidelity
Part of the book series: Springer Theses (Springer Theses)
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Table of contents (8 chapters)
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Front Matter
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Back Matter
About this book
computers. Two crucial performance metrics for logic gates are their precision and
speed. Quantum processors based on trapped ions have always been the touchstone
for gate precision, but have suffered from slow speed relative to other quantum logic
platforms such as solid state systems. This thesis shows that it is possible to accelerate
the logic "clock speed" from kHz to MHz speeds, whilst maintaining a precision of
99.8%. This is almost as high as the world record for conventional trapped-ion gates,
but more than 20 times faster. It also demonstrates entanglement generation in a
time (480ns) shorter than the natural timescale of the ions' motion in the trap, which
starts to probe an interesting new regime of ion trap physics.
In separate experiments, some of the first "mixed-species" quantum logic gates are
performed, both between two different elements, and between different isotopes.
The mixed-isotope gate is used to make the first test of the quantum-mechanical Bell
inequality between two different species of isolated atoms.
Authors and Affiliations
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Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, UK
Vera M. Schäfer
Bibliographic Information
Book Title: Fast Gates and Mixed-Species Entanglement with Trapped Ions
Authors: Vera M. Schäfer
Series Title: Springer Theses
DOI: https://doi.org/10.1007/978-3-030-40285-3
Publisher: Springer Cham
eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)
Copyright Information: Springer Nature Switzerland AG 2020
Hardcover ISBN: 978-3-030-40284-6Published: 05 March 2020
Softcover ISBN: 978-3-030-40287-7Published: 05 March 2021
eBook ISBN: 978-3-030-40285-3Published: 04 March 2020
Series ISSN: 2190-5053
Series E-ISSN: 2190-5061
Edition Number: 1
Number of Pages: XVI, 155
Number of Illustrations: 4 b/w illustrations, 65 illustrations in colour
Topics: Quantum Information Technology, Spintronics, Quantum Physics, Quantum Computing, Atomic, Molecular, Optical and Plasma Physics