Probing Two-Dimensional Quantum Fluids with Cavity Optomechanics (Heftet)

Serie: Springer Theses 


Innbinding: Heftet
Utgivelsesår: 2021
Antall sider: 147
Forlag: Springer Nature Switzerland AG
Språk: Engelsk
Serie: Springer Theses
ISBN/EAN: 9783030527686
Kategori: Teknologi, transport og landbruk og Naturvitenskap
Omtale Probing Two-Dimensional Quantum Fluids with Cavity Optomechanics
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.

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