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Introduction to KZ mechanism[File: Viewgraphs New/KibbleZurek/KZ- MechanismIntro.ai]

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Presentation on theme: "Introduction to KZ mechanism[File: Viewgraphs New/KibbleZurek/KZ- MechanismIntro.ai]"— Presentation transcript:

1 Introduction to KZ mechanism[File: Viewgraphs New/KibbleZurek/KZ- MechanismIntro.ai]

2 History of research on Kibble- Zurek mechanism[File: Viewgraphs New/KibbleZurek/KZ- MechanismHistory.ai

3 Wilkinson Microwave Anisotropy Probe result on Cosmic Microwave Background & multipole distribution [File: WMAP-Result.ai]

4 First generation quench experiment in superconductors [File: Viewgraphs New/KibbleZurek/PolturakExp-a.ai]

5 Principle of neutron irradiation measurements in 3He-B [File: NeutExpPrinciple.ai]

6 Helium-3B superfluid phase diagram, order parameter & textures [File: He3BSupFluid.ai]

7 NMR spectrum as a tool to measure the number of rectilinear vortex lines in rotation [File: Viewgraphs New/Turbulence/LineShapesB- Spectra.ai]

8 Introduction to quantized vortex lines & rotation [File: VorLineIntro.ai]

9 Classification of different rotating states [File: Viewgraphs New/Turbulence/RotSupFluidState s.ai]

10 Principle of neutron irradiation measurements in 3He-B [File: NeutExpPrinciple.ai]

11 NMR response in Larmor region of signal from neutron irradiation [File: VorNeutIrrad-a.ai]

12 Overlay with cubic velocity dependence and universality property [File: VorNeutIrrad-b.ai]

13 Zurek scaling theory & domain size in order parameter field after quench [File: Talks/KibbleZurekVerification/Kibbl eZurekMech.jpg]

14 Random vortex network & loop escape [File: VorNetwork-a.ai]

15 Comparison of model with measurement [File: VorFormRateNeutronIrrad.ai]

16 Rates of vortex line formation, of detected neutron absorption events & average number of lines per event [File: EventRates.ai]

17 Composite SMV structure, order parameter defect & configuration in rotating sample [File: Viewgraph New/CracowB-Phase2002/SMV- Confinement.ai]

18 NMR signal amplitude during vortex line accumulation in neutron irradiation with SMV signature [File: Viewgraphs New/CracowB- Phase2002/SMV-NeutronExp.ai]

19 Experimental signature of SMV in NMR spectrum [File: Viegraphs New/cracowB-Phase2002/SMV- NMR-Spectra.ai]

20 Quenches across stable A phase regime at high pressures give less vortices than expected [File: B- PhaseNucleationIntro.ai]

21 Stabilization of AB interface and two-phase sample in rotation [File: StationaryAB-Interface-a.ai]

22 Kelvin-Helmholtz instability at AB interface & vortex loop injection into B phase [File: StationaryAB- Interface-c.ai]

23 Moving AB interface pushes A- phase vortex lines out of the way and leaves a B phase with a vortex deficit behind [File: MovingAB- Interface-Intro.ai]

24 Summary of results on KZ mechanism in 3He superfluids [File: SummarySEWM04.ai]

25 Thanks, affiliations, ESF program COSLAB [File: TitlePageSEWM04.ai]

26

27 Number of loops escaping from neutron bubble per event & per minute [File: VorLoopEscape.ai]

28 Origin for NMR signature of SMV and its properties in rotation [File: Viewgraphs New/CracowB- Phase2002/SMV-ExpSignature.ai]

29 A to B transition barrier and lifetime measurements in irradiation [File: B-PhaseNucleation.ai]

30 Shear flow at AB interface in rotation & no vortex penetration into B phase [File: StationaryAB- Interface-b.ai]

31

32 NMR line shapes at high temperatures [File: Viewgraphs New/CacowB-Phase2002/NMR- SignalVorLines.ai]


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