Program

VORTICES, SUPERFLUID DYNAMICS, AND QUANTUM TURBULENCE

SYMPOSIA ON SUPERFLUIDS UNDER ROTATION

11 – 16 April, 2010


Contents

SYMPOSIUM PROGRAM

(downloadable as a pdf)



Venue

Lammi Biological Station of the University of Helsinki, Lammi, Finland

Arrival

Sunday, April 11, afternoon & evening
Transportation from Helsinki airport starting during afternoon & evening

Departure

Friday, April 16, afternoon
Transportation to Helsinki airport, arrival there at 14:30


Sunday, April 11


18:00

Informal get-together in common room: snacks, salad & beer;
host: P. Heikkinen


Monday, April 12


07:30 – 08:45 Breakfast

Reviews: Introduction to turbulence; chairman: M. Krusius

08:45 – 09:00 Opening of symposium

09:00 – 09:45 W. Vinen, University of Birmingham, UK

Quantum turbulence: achievements and challenges (Abstract)

09:45 – 10:30 V. L´vov, Weizmann Institute of Science, Rehovot

Energy cascades in quantum turbulence (Abstract)


10:30 – 11:00 Coffee break

Reports: Measurements of quantum turbulence in T → 0 limit; chairman: V. Eltsov

11:00 – 11:30 V. Tsepelin, Lancaster University

Studies of turbulence in 3He-B in T → 0 limit

11:30 – 12:00 P. Walmsley, University of Manchester, UK

Studies of turbulence in superfluid 4He in T → 0 limit


12:00 – 14:00 Lunch

Reports: Andreev reflection from vortices; chairman: R. Haley

14:00 – 14:30 J. Hosio, Aalto University, Espoo, Finland

Andreev scattering from a vortex cluster in rotating 3He-B (Abstract)

14:30 – 15:00 Yu. Sergeev, Newcastle University, UK

Thermal flux of quasiparticles incident upon vortex clusters and the transition between two regimes of turbulence in 3He-B (Abstract)


15:00 – 15:30 Coffee break

Reports: Numerical calculation of vortex dynamics & turbulence; chairman: C. Barenghi

15:30 – 16:00 M. Tsubota, Osaka City University, Japan

Numerical studies of quantum turbulence (Abstract)

16:00 – 16:30 R. Hänninen, Aalto University, Espoo, Finland

Numerical studies of superfluid spin down from rotation (Abstract)

16:30 – 17:00 P. Roche, Institute Néel, CNRS - UJF, Grenoble

DNS modeling of homogeneous superfluid turbulence


17:00 – 19:00 Dinner


19:00 – 20:00 Evening Colloquium; chairman: V. L'vov

V. Lebedev, Landau Institute of Theoretical Physics, Moscow
Viscous turbulence: Introduction & outstanding research questions (Abstract)


20:00 – 23:00 Sauna & beer; host: P. Heikkinen

Snacks, salad & beer in common room


Tuesday, April 13


07:30 – 08:45 Breakfast

Reviews: Quantum turbulence in T → 0 limit: Methods & measurements; chairman: L. Skrbek

08:45 – 09:30 A. Golov, Manchester University, UK

Experiments on the dynamics of turbulence in superfluid 4He at low temperatures

09:30 – 10:15 G. Pickett, Lancaster University

Quantum turbulence in 3He-B


10:15 – 10:45 Coffee break

Reports: Theory of vortex dynamics & turbulence; chairman: S. Nemirovskii

10:45 – 11:15 E. Kozik, ETH, Zurich

Decay of quantum turbulence (Abstract)

11:15 – 11:45 C. Barenghi, Newcastle University, UK

Velocity statistics in classical and quantum turbulence (Abstract)


12:00 – 14:00 Lunch

Reports: Thermal measurements of quantum turbulence in T → 0 limit; chairman: P. Walmsley

14:00 – 14:30 V. Eltsov, Aalto University, Espoo, Finland

Thermal signal from the propagating vortex front in rotating 3He-B (Abstract)

14:30 – 15:00 Gary Ihas, University of Florida, Gainsville, Florida, USA

Grid pull measurements in 4He at 100 mK (Abstract)


15:00 – 15:30 Coffee break

Reports: Vortex dynamics & transition to turbulence; chairman: V. Tsepelin

15:30 – 16:00 N. Kopnin, Aalto University, Espoo, Finland

Vortex motion and mutual friction

16:00 – 16:30 R. Haley, Lancaster University, UK

Quartz tuning forks and the transition to turbulence in superfluid helium-4 (Abstract)

16:30 – 17:00 Victor Efimov, Institute of Solid State Physics RAS, Chernogolovka, Russia and Lancster University, Lancaster, UK

Vortex dynamics in superfluid 4He in the T → 0 limit: Tuning forks as vortex generators and detectors (Abstract)


17:00 – 19:00 Dinner

19:00 – 21:00 Poster Session; chairman: J. Tuoriniemi

5 min oral presentation of each poster (details below), followed by informal discussions around all posters simultaneously


20:00 – 23:00 Sauna & beer; host: P. Heikkinen

Snacks, salad & beer in common room


Wednesday, April 14


07:30 – 08:45 Breakfast

Reviews: Vortices in Bose condensates - I; chairman: V. Bagnato

08:45 – 09:30 A. Fetter, Stanford University, USA

Vortices and dynamics in trapped Bose-Einstein condensates (Abstract)

09:30 – 10:15 B. Anderson, University of Arizona, USA

Vortices in dilute-gas Bose-Einstein condensates: a decade of experiments (Abstract)


10:15 – 10:45 Coffee break

Reports: Vortices in Bose condensates - II; chairman: M. Tsubota

10:45 – 11:15 E. Sonin, Hebrew University, Jerusalem, Israel

Gauge-field rotation of an electrically polarized Bose condensate by a radial magnetic field (Abstract)

11:15 – 11:45 M. Möttönen, Aalto University, Espoo, Finland

Topological vortex formation


12:00 – 14:00 Lunch

Reports: Bose condensates & topological defects; chairman: M. Möttönen

14:00 – 14:30 Yu. Bunkov, Institute Néel, CNRS – UJF, Grenoble

Bose-Einstein condensation of magnons in rotating 3He (Abstract)

14:30 – 15:00 V. Pietilä, Aalto University, Espoo, Finland

Monopoles and point defects in Bose condensates


15:00 – 15:30 Coffee break

Reports: Vortices in 3He superfluids; chairman: N. Kopnin

15:30 – 16:00 T. Mizusaki, Kyoto University, Japan

Vortex core structures of rotating Mermin-Ho textures and detection of the intrinsic angular momentum in 3He-A

16:00 – 16:30 D. Zmeev, Manchester University, UK

Vortices and soliton domain walls in rotating 3He-A confined between parallel plates

16:30 – 17:00 M. Krusius, Aalto University, Espoo, Finland

Vortex formation and annihilation in rotating superfluid 3He-B at low temperatures (Abstract)


17:00 – 19:00 Dinner

19:00 – 21:00 Poster Session; chairman: J. Tuoriniemi

5 min oral presentation of each poster (details below), followed by informal discussions around all posters simultaneously


20:00 – 23:00 Sauna & beer; host: P. Heikkinen

Snacks, salad & beer in common room


Thursday, April 15


07:30 – 08:45 Breakfast

Reviews: Vortices in Fermi superfluids; chairman: K. Machida

08:45 – 09:30 N. Andersson, University of Southampton, UK

Neutron stars as superfluid laboratories (Abstract)

09:30 – 10:15 G. Volovik, Aalto University, Espoo, Finland

Fermion zero modes in vortex cores and on surfaces or interfaces (Abstract)


10:15 – 10:45 Coffee break

Reports: Quasiparticle states in superfluid 3He - I; chairman: G. Volovik

10:45 – 11:15 M. Silaev, Institute for the Physics of Microstructures, Nizhny Novgorod

Bound fermion states and resonant magnetic susceptibility of vortex cores in 3He-B (Abstract)

11:15 – 11:45 Suk Bum Chung, Stanford University, USA

Detecting the Majorana fermion surface state of 3He-B through spin relaxation (Abstract)


12:00 – 14:00 Lunch

Reports: Quasiparticle states in superfluid 3He - II; chairman: J. Saunders

14:00 – 14:30 K. Machida, Okayama University, Japan

Fermionic excitations around vortices in rotating 3He-A (Abstract)

14:30 – 15:00 Y. Okuda, Tokyo Institute of Technology, Japan

Measurements on the surface Andreev bound state of 3He-B


15:00 – 15:30 Coffee break

Reports: Novel states in He systems; chairman: Y. Okuda

15:30 – 16:00 L. Levitin, Royal Holloway College, University of London, UK

NMR studies of superfluid 3He confined to a single 0.6 micron slab (Abstract)

16:00 – 16:30 Tomoki Minoguchi, University of Tokyo, Japan

4He films on graphite - superfluid dynamics coupled with solid bilayer (Abstract)

16:30 – 17:00 M. Kubota, Institute for Solid State Physics, University of Tokyo, Japan

Vortex state in hcp 4He: vortex fluid state and transition to supersolid state (Abstract)


17:00 – 19:00 Dinner

19:00 – 21:00 Romp Session; chairmen: A. Fetter & W. Vinen

10 min oral presentations followed by 10 min discussion - on topics presented at the workshop – the speakers are asked to reserve their slot in advance during the workshop, by discussing with the chairmen


20:00 – 23:00 Sauna & beer; host: P. Heikkinen

Snacks, salad & beer in common room


Friday, April 16


07:30 – 08:45 Breakfast

Reports: Superfluid turbulence; chairman: A. Golov

08:45 – 09:15 V. Bagnato, University of Sao Paulo, Brazil

Thermodynamics and hydrodynamics aspects of turbulence in a Bose condensate (Abstract)

09:15 – 09:45 D. Lathrop, University of Maryland, College Park, USA

Experimental characterization of reconnection, counterflows, and quantum turbulence

09:45 – 10:15 L. Skrbek, Charles University, Prague, Czech Republic

Quantum turbulence in 4He-II above 1 K – solved and open problems


10:15 – 10:45 Coffee break

Reports: OTurbulence in oscillating superfluid 4He flow; chairman: G. Pickett

10:45 – 11:15 H. Yano, Osaka City University, Japan

Transition to steady quantum turbulence generated by thin oscillating structure in superfluid 4He (Abstract)

11:15 – 11:45 W. Schoepe, University of Regensburg, Germany

Statistics of intermittent switching between potential flow and turbulence around an oscillating sphere (Abstract)


11:45 – 12:00 Closing


12:00 – 13:00 Lunch


12:30 – 13:00 Departure

14:00 – 14:30 Helsinki airport

14:30 – 15:00 Helsinki City - Otaniemi, Low Temperature Laboratory


POSTER SESSIONS


Poster session I: Tuesday, April 13, 19:00 - 21:00

Simone Babuin, Institute of Physics of ASCR, Prague, Czech Republic
Turbulent convection in rotating cryogenic helium gas: heat transport measurements (Abstract)
Matt Fear, University of Lancaster, UK
A new experiment using characterised quartz tuning forks to probe the superfluid Helium-3 AB interface
Rob de Graaf, Aalto University, Espoo, Finland
NMR measurement of vortices in 3He-B in T → 0 limit
Martin Jackson, Lancaster University, UK
Search for a link between pair-breaking and turbulence in superfluid 3He-B (Abstract)
Sergey Nemirovskii, Institute of Thermophysics, Novosibirsk, Russia
Diffusive decay of the vortex tangle (Abstract)
David Potts, Lancaster University, UK
Thermal detection of quantum turbulent decay in superfluid 3He-B at ultralow temperatures
Julien Salort, Institute Néel, CNRS – UJF, Grenoble, France
Micro-cantilever based on a superconducting resonator: an anemometer for superfluid turbulence
David Schmoranzer, Charles University, Prague, Czech Republic
Quartz tuning forks as detectors in von Kármán flow of normal and superfluid 4He? (Abstract)

Poster session II: Wednesday, April 14, 19:00 - 21:00

Menouar Hanafi, University of Sciences and Technology, Oran, Algeria
The natural gas liquefaction process in the LNG plant Arzew - Algeria
Petri Heikkinen, Aalto University,Espoo, Finland
Magnon condensation and measurement of vortices in 3He-B (Abstract)
Janne Karimäki, Aalto University,Espoo, Finland
Asymptotic motion of a single vortex in a rotating semi-infinite cylinder (Abstract)
Pekko Kuopanportti, Aalto University, Espoo, Finland
Dynamics of giant vortices in dilute Bose-Einstein condensates (Abstract)
Lev Levitin, Royal Holloway College, University of London, UK
NMR studies of superfluid 3He confined to a single 0.6 micron slab (Abstract)
Anssi Salmela, Aalto University, Espoo, Finland
Acoustic resonances excited by quartz tuning forks in helium fluids (Abstract)
Wilfried Schoepe, University of Regensburg, Germany
Universal onset of quantum turbulence in oscillating flows and crossover to steady flows (Abstract)
Otto Vainio, University of Turku, Finland
Experiments with high density quantum gas of atomic hydrogen
Daniel Wacks, Newcastle University, UK
Turbulence and velocity statistics of an atomic Bose-Einstein condensate


Mobile telephone numbers (in case of emergency)

- transportation: Anssi Salmela +358503442739 <ajsalmel(at)cc.hut.fi>

- audio visual help: Rob de Graaf +358503442189 <rdegraaf(at)boojum.hut.fi>

- audio visual help: Juho Rysti +358503442727 <juho.rysti(at)tkk.fi>

- accommodation: Matti Manninen +358503442608 <msmannin(at)cc.hut.fi>

- poster sessions: Juha Tuoriniemi +358503442846 <jtt(at)neuro.hut.fi>

- sauna: Petri Heikkinen +358503442318 <pjheikki(at)cc.hut.f>

- travel reimbursement: Sari Laitila +358503442614 <laitila(at)neuro.hut.fi>

- general questions: Matti Krusius +358503442578 <mkrusius(at)neuro.hut.fi>