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Probing Two-Dimensional Quantum Fluids with Cavity Optomechanics

  • Book
  • © 2020

Overview

Authors:
  1. Yauhen Sachkou

    1. School of Mathematics and Physics/ARC Centre of Excellence for Engineered Quantum Systems, University of Queensland, Brisbane, Australia

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  • Nominated as an outstanding Ph.D. thesis by The University of Queensland, Australia
  • Introduces a new microphotonic paradigm of probing microscopic behaviour of two-dimensional superfluid helium
  • Presents a set of measurements of superfluid dynamics in new regimes which, until this work, were thought to be experimentally inaccessible
  • Provides a comprehensive and clear introduction covering the basics of superfluidity, cavity optomechanics, and whispering-gallery-mode resonators

Part of the book series: Springer Theses (Springer Theses)

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Table of contents (6 chapters)

  1. Front Matter

    Pages i-xxi
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  2. Introduction and Overview

    • Yauhen Sachkou
    Pages 1-24

  3. Optomechanical Platform for Probing Two-Dimensional Quantum Fluids

    • Yauhen Sachkou
    Pages 25-53

  4. Light-Mediated Control of Superfluid Flow

    • Yauhen Sachkou
    Pages 55-74

  5. Theoretical Investigation of Vortex-Sound Interactions in Two-Dimensional Superfluids

    • Yauhen Sachkou
    Pages 75-99

  6. Observation of Coherent Vortex Dynamics in Two-Dimensional Superfluid Helium

    • Yauhen Sachkou
    Pages 101-138

  7. Conclusion

    • Yauhen Sachkou
    Pages 139-141

  8. Back Matter

    Pages 143-147
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Keywords

About this book

Superfluid helium is a quantum liquid that exhibits a range of counter-intuitive phenomena such as frictionless flow. Quantized vortices are a particularly important feature of superfluid helium, and all superfluids, characterized by a circulation that can only take prescribed integer values. However, the strong interactions between atoms in superfluid helium prohibit quantitative theory of vortex behaviour. Experiments have similarly not been able to observe coherent vortex dynamics.


This thesis resolves this challenge, bringing microphotonic techniques to bear on two-dimensional superfluid helium, observing coherent vortex dynamics for the first time, and achieving this on a silicon chip. This represents a major scientific contribution, as it opens the door not only to providing a better understanding of this esoteric quantum state of matter, but also to building new quantum technologies based upon it, and to understanding the dynamics of astrophysical superfluids such as those thought to exist in the core of neutron stars.






Authors and Affiliations

  • School of Mathematics and Physics/ARC Centre of Excellence for Engineered Quantum Systems, University of Queensland, Brisbane, Australia

    Yauhen Sachkou

About the author

​Dr Sachkou completed his undergraduate degree in physics with a specialisation in laser systems at the Belarusian State University in Minsk, Belarus. He then obtained Master of Science in Photonics degree jointly from Ghent University, Vrije Universiteit Brussel (both Belgium), and University of St Andrews (Scotland). Yauhen received a PhD in physics from the University of Queensland, Australia in 2019.
Dr Sachkou's expertise covers a range of concepts of modern physics from superconducting circuits to quantum fluids and optomechanics, with the particular focus on quantum technologies. Apart from academic research, Yauhen enjoys engaging in various science communication and outreach activities.

Bibliographic Information

  • Book Title: Probing Two-Dimensional Quantum Fluids with Cavity Optomechanics

  • Authors: Yauhen Sachkou

  • Series Title: Springer Theses

  • DOI: https://doi.org/10.1007/978-3-030-52766-2

  • Publisher: Springer Cham

  • eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)

  • Copyright Information: The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2020

  • Hardcover ISBN: 978-3-030-52765-5Published: 18 July 2020

  • Softcover ISBN: 978-3-030-52768-6Published: 18 July 2021

  • eBook ISBN: 978-3-030-52766-2Published: 17 July 2020

  • Series ISSN: 2190-5053

  • Series E-ISSN: 2190-5061

  • Edition Number: 1

  • Number of Pages: XXI, 147

  • Number of Illustrations: 15 b/w illustrations, 40 illustrations in colour

  • Topics: Condensed Matter Physics, Quantum Physics, Chemistry/Food Science, general, Materials Science, general

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