03749nam 22006375 450 991041215350332120250610110436.03-030-52766-210.1007/978-3-030-52766-2(CKB)4100000011354853(DE-He213)978-3-030-52766-2(MiAaPQ)EBC6273175(PPN)258304871(MiAaPQ)EBC6270732(MiAaPQ)EBC29228798(EXLCZ)99410000001135485320200717d2020 u| 0engurnn|008mamaatxtrdacontentcrdamediacrrdacarrierProbing Two-Dimensional Quantum Fluids with Cavity Optomechanics /by Yauhen Sachkou1st ed. 2020.Cham :Springer International Publishing :Imprint: Springer,2020.1 online resource (XXI, 147 p. 55 illus., 40 illus. in color.) Springer Theses, Recognizing Outstanding Ph.D. Research,2190-50533-030-52765-4 Introduction and Overview -- Optomechanical Platform for Probing Two-Dimensional Quantum Fluids -- Light-Mediated Control Of Superfluid Flow -- Theoretical Investigation of Vortex-Sound Interactions In Two-Dimensional Superfluids -- Observation of Coherent Vortex Dynamics in Two-Dimensional Superfluid Helium -- Summary -- Appendices.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.Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053Condensed matterQuantum theoryChemistryMaterials scienceCondensed Matter Physicshttps://scigraph.springernature.com/ontologies/product-market-codes/P25005Quantum Physicshttps://scigraph.springernature.com/ontologies/product-market-codes/P19080Chemistry/Food Science, generalhttps://scigraph.springernature.com/ontologies/product-market-codes/C00004Materials Science, generalhttps://scigraph.springernature.com/ontologies/product-market-codes/Z00000Condensed matter.Quantum theory.Chemistry.Materials science.Condensed Matter Physics.Quantum Physics.Chemistry/Food Science, general.Materials Science, general.530.42Sachkou Yauhenauthttp://id.loc.gov/vocabulary/relators/aut843627MiAaPQMiAaPQMiAaPQBOOK9910412153503321Probing Two-Dimensional Quantum Fluids with Cavity Optomechanics1882348UNINA