SOUND EMISSION AND IRREVERSIBLE DYNAMICS DURING VORTEX - PowerPoint PPT Presentation

Sep 27, 2023 •202 likes •524 views

arXiv:2005.02047, arXiv.2005.02048 SOUND EMISSION AND IRREVERSIBLE DYNAMICS DURING VORTEX RECONNECTIONS IN QUANTUM FLUIDS DAVIDE PROMENT, UNIVERSITY OF EAST ANGLIA (UK) Joint work with: Alberto Villois and Giorgio Krstulovic arXiv:2005.02047,

arXiv:2005.02047, arXiv.2005.02048 SOUND EMISSION AND IRREVERSIBLE DYNAMICS DURING VORTEX RECONNECTIONS IN QUANTUM FLUIDS DAVIDE PROMENT, UNIVERSITY OF EAST ANGLIA (UK) Joint work with: Alberto Villois and Giorgio Krstulovic
arXiv:2005.02047, arXiv.2005.02048 SOUND EMISSION AND IRREVERSIBLE DYNAMICS DURING VORTEX RECONNECTIONS IN QUANTUM FLUIDS ‣ Introduction on quantum fluids (superfluids) ‣ What are vortex reconnections? ‣ Evidence of irreversible dynamics ‣ Matching theory to explain this behaviour
WHAT IS A QUANTUM FLUID (SUPERFLUID)? Mathematically (fluid mechanics) ‣ Total absence of viscosity ‣ Irrotational flow, but vortices exist as topological defects ‣ Vorticity is delta-supported and circulation is quantised (take only multiple values of the quantum of circulation Physically (quantum mechanics, statistical mechanics, condensed matter) ‣ Quantum fluids manifest at very low temperatures or at very high density ‣ Superfluidity is related to Bose-Einstein condensation ‣ Emergence of an order parameter that describes the system
EXAMPLES OF QUANTUM FLUIDS Bose-Einstein condensates [top: JILA group, bottom: Ketterle et al.] Superfluid liquid helium [Public Domain, Wikipedia] Neutron stars [Robert Schulze, Wikipedia]

Download Presentation

Download Policy: The content available on the website is offered to you 'AS IS' for your personal information and use only. It cannot be commercialized, licensed, or distributed on other websites without prior consent from the author. To download a presentation, simply click this link. If you encounter any difficulties during the download process, it's possible that the publisher has removed the file from their server.

Recommend

IRREVERSIBLE DYNAMICS OF SUPERFLUID VORTEX RECONNECTIONS DAVIDE PROMENT, UNIVERSITY OF EAST

manuscript in preparation IRREVERSIBLE DYNAMICS OF SUPERFLUID VORTEX RECONNECTIONS DAVIDE PROMENT, UNIVERSITY OF EAST ANGLIA (UK) Joint work with: Alberto Villois and Giorgio Krstulovic RECONNECTIONS IN SUPERFLUIDS ( t ) [Paoletti et

586 views • 15 slides

Easyjet A319/A320 vortex generator retrofit April 2016 Retrofit of vortex generators Fuel over

Easyjet A319/A320 vortex generator retrofit April 2016 Retrofit of vortex generators Fuel over pressure check panels , EZY aircraft have one on each wing. Tonal noise is reduced With VG retro-fit Averaged Sound Power Spectral Density at

909 views • 5 slides

From dynamics of a single From dynamics of a single superfmuid vortex superfmuid vortex to

From dynamics of a single From dynamics of a single superfmuid vortex superfmuid vortex to quantum turbulence to quantum turbulence in the unitary Fermi gas: in the unitary Fermi gas: results of time-dependent results of time-dependent

183 views • 15 slides

AIR & FLIGHT Fluid Dynamics and Vortex Rings Module 1.3 Proudly developed by SMART with

AIR & FLIGHT Fluid Dynamics and Vortex Rings Module 1.3 Proudly developed by SMART with funding from Inspiring Australia http://mpegmedia.abc.net.au/science/articles/mp4/bubblerings.mp4 Video of underwater bubble rings by the Surfing

353 views • 10 slides

Existence, stability and nonlinear dynamics of vortex clusters in anisotropic Bose-Einstein

Conference on Localized Excitations in Nonlinear Complex Systems Sevilla, July 9-12, 2012 Existence, stability and nonlinear dynamics of vortex clusters in anisotropic Bose-Einstein condensates J. Stockhofe, S. Middelkamp, P. Schmelcher

419 views • 20 slides

LAGRANGIAN VISUALIZATIONS and EULERIAN DIAGNOSTICS of VORTEX BREAKDOWN Naumov I.V., Okulov V.L.,

EUROMECH 448, "Vortex dynamics and field interactions" 6th-10th September 2004, Paris, France LAGRANGIAN VISUALIZATIONS and EULERIAN DIAGNOSTICS of VORTEX BREAKDOWN Naumov I.V., Okulov V.L., J. N. Sorensen* Institute of Thermophysics

261 views • 13 slides

Fundamentals of vortex dynamics Andrew David Gilbert, Mathematics Department, University of Exeter,

Fundamentals of vortex dynamics Andrew David Gilbert, Mathematics Department, University of Exeter, UK Leverhulme Trust Research Fellowship - 2019 Motivation: vortices and more vortices wing-tip vortices (NASA) draining Lake Texoma, USA

962 views • 39 slides

Vortex filament dynamics Walter Craig The Fields Institute McMaster University Legacy of

Vortex filament dynamics Walter Craig The Fields Institute McMaster University Legacy of Vladimir Arnold November 25, 2014 The Fields Institute Work in collaboration with Carlos Garcia Azpeitia The Fields Institute, McMaster University

409 views • 28 slides

Discrete interface dynamics and hydrodynamic limits F. Toninelli, CNRS and Universit e Lyon 1

Discrete interface dynamics and hydrodynamic limits F. Toninelli, CNRS and Universit e Lyon 1 IHP, june 2017 Framework: stochastic interface dynamics Interface dynamics modeled by (reversible or irreversible) Markov chains with local update

923 views • 80 slides

Instrumental Presentation II Vortex mixer Jyotirmoy Ghosh 07-05-16 1 Introduction A vortex

Instrumental Presentation II Vortex mixer Jyotirmoy Ghosh 07-05-16 1 Introduction A vortex mixer, or vortexer, is a simple device used commonly in laboratories to mix small vials of liquid. When a test tube or other appropriate container is

104 views • 8 slides

Osaka City University Hideo Yano Osaka City University Hideo Yano Quantum Turbulence

PSM2010 (Superclean Materials), Yokohama, 9 Mar. 2010 O4 Vortex Dynamics in Quantum Turbulence of Superfluid 4 4 He He Vortex Dynamics in Quantum Turbulence of Superfluid at the Turbulent Transition at the Turbulent Transition Osaka City

406 views • 16 slides

Carbon-emission and emission-cut measures in CHIYODA-ward A: emission-cut by increased operation

Carbon-emission and emission-cut measures in CHIYODA-ward A: emission-cut by increased operation of nuclear powers B: emission-cut by reinforcement of EE standard for buildings&facilities C: emission-cut by RE ,area-wide energy system

112 views • 9 slides

Why do irreversible processes converge faster to equilibrium than reversible ones? Marcus Kaiser

Why do irreversible processes converge faster to equilibrium than reversible ones? Marcus Kaiser SAMBa Summer Conference 2017 University of Bath joint work with R. L. Jack and J. Zimmer Marcus Kaiser Claim: Irreversible systems converge faster

497 views • 35 slides

Equadiff 2015 Small eigenvalues and mean transition times for irreversible diffusions Barbara

Motivation Exit problem The irreversible case & periodic orbits Exit through an unstable periodic orbit Equadiff 2015 Small eigenvalues and mean transition times for irreversible diffusions Barbara Gentz (Bielefeld) & Nils Berglund

585 views • 35 slides

Sound 1 Sound "50% of the movie experience is sound - George Lucas Sound is used

Sound 1 Sound "50% of the movie experience is sound - George Lucas Sound is used to create: Mood Ambience Drama Environmental clues Continuity Feedback Practical Issues Real-time requirement

311 views • 17 slides

? Message sound Message P(wolf|sound) P(sound| wolf) x P(wolf) 1 9/4/19 P(sound| wolf)

9/4/19 Speech Hynek Hermansky Elecrical and Computer Engineering Hackerman 324Fp ? Message sound Message P(wolf|sound) P(sound| wolf) x P(wolf) 1 9/4/19 P(sound| wolf) no wolf wolf loudness timbre (sound color) More

334 views • 14 slides

Performance analysis of a virtualized vehicle-compute platform: An experience report Christopher

Performance analysis of a virtualized vehicle-compute platform: An experience report Christopher Hesse, Tim Welsch Holger Eichelberger { christopher.hesse, tim.welsch } @aptiv.com eichelberger@sse.uni-hildesheim.de Aptiv, Hildesheim, Germany

252 views • 3 slides

Is the peculiar behavior of 1/ f noise in graphene the result of the interplay between

Is the peculiar behavior of 1/ f noise in graphene the result of the interplay between band-structure and inhomogeneities? B. Pellegrini, P. Marconcini, M. Macucci, G. Fiori, and G. Basso G. Fiori, and G. Basso Dipartimento di Ingegneria

179 views • 15 slides

Perspectives from the DOE Office of Nuclear Physics Nuclear Science Advisory Committee Meeting

Perspectives from the DOE Office of Nuclear Physics Nuclear Science Advisory Committee Meeting January 28-29, 2013 Dr. T. J. Hallman Associate Director for Nuclear Physics DOE Office of Science Nuclear Physics Discovering, exploring, and

458 views • 42 slides

What does TCSCF do? What does TCSCF do? Second First We provide genetic, growth, Collect

Tri-County Steer Carcass Lessons Learned From 34 Years of Futurity (TCSCF) Retained Ownership Tri-County Steer Carcass Futurity First year 35 consignors - 106 steers What is the most profitable steer in the Darrell Busby feedlot?

764 views • 13 slides

Dirac: g = 2 2 + muon anomaly Electromagnetic Lepton Vertex ( p ) ( q )

The Muon g 2 : present and future Fred Jegerlehner, DESY Zeuthen/Humboldt University Berlin Strong Coupling Gauge Theories Beyond the Standard Model (SCGT14mini) March 5 - March 7, 2014 Nagoya University, Nagoya, Japan

648 views • 46 slides

Search for rare shape-phase transitions in hot rotating heavy nuclei Indranil Mazumdar Tata

Search for rare shape-phase transitions in hot rotating heavy nuclei Indranil Mazumdar Tata Institute of Fundamental Research, Mumbai Collective Motion in Nuclei Under Extreme Conditions September 14 18, 2015 krakow, Poland Plan of the talk

689 views • 47 slides

Perspectives on Photonic Integration T. L. Koch Prof. of ECE and Physics Director Center for

Center for Optical Technologies Perspectives on Photonic Integration T. L. Koch Prof. of ECE and Physics Director Center for Optical Technologies Lehigh University Bethlehem, Pennsylvania, USA 2005 WOCC Newark April 22, 2005 Center for

559 views • 35 slides

Internet Topology Generation for Large Scale BGP Simulation Jean-Michel Fourneau - Houssame

Internet Topology Generation for Large Scale BGP Simulation Jean-Michel Fourneau - Houssame Yahiaoui Outlook BGP: Border Gateway Protocol Large Scale Simulation: motivations Large Scale BGP Simulation Model Realistic Topologies

550 views • 17 slides