Pauli

Wolfgang Pauli Institute, Vienna

14th Plasma Kinetics Working Meeting
  24 July - 4 August, 2023

Organised by A. Schekochihin (Oxford) & M. Kunz (Princeton)



10th
                Anniversary Beast
SOME SPECIAL TOPICS
  • Turbulence in stellarators and tokamaks
  • Fast particles in tokamaks and in space
  • Relaxation without dissipation in kinetics and MHD
  • Reconnection everywhere
  • The usual...

JPP


If you know exactly what you are going to do, what is the point of doing it? Pablo Picasso
He goeth furthest who knows not whither he is going. Oliver Cromwell

Every line in your calculations ends with "=0". You are not making much progress!
Kate Hammett
We don't do the calculation because we don't know the answer, we do it because we have a conscience. Bryan Taylor
Let's change the resolution on the Unknown.
Gabe Plunk
Working together takes more than one person. Bill Dorland
We can't do ultraviolence to that square bracket. Ian Abel
Field lines are forever. Bryan Taylor
This is not really an ill-posed problem, this is not a problem at all. Paul Dellar
I am just doing mathematics at the moment, but it is mathematics that has some point. Bryan Taylor
The equivalent of God in MAST is MHD, which is global and all-powerful. Anthony Field
We have crossed all the i's and dotted all the t's. Job's a good'un. Ian Abel
Let us not jump in front of the bandwagon! Alex Schekochihin
It's not the triviality, it's the emptiness of it that bothers me.
Bryan Taylor
Never take 0 for an answer. Alex Schekochihin
This is a very inefficient way of achieving nothing.
Francois Rincon
For the sake of fairness, let me mention that some people have objections to this, none of which are particularly valid. Chris Chen
This is more or less right. Perhaps less. Alfred Mallet
Too simple? At the end of my talk, you will beg for simplicity! Andrey Beresnyak
What is the point? The point is not the point! Anonymous
This is why I am presenting this here and nowhere else: nothing is solved!
Ian Abel
Previous studies of this problem have been either unsatisfactory or limited in scope.---What  is the difference between those?---This means either wrong or irrelevant. Anatoly Spitkovsky, Michael Medvedev & Steve Cowley (in conversation)
I don't give a damn about astrophysics, explain to me what is going on.
Anatoly Spitkovsky
Have you subtracted the baby with the bathwater? Steve Balbus
This is not rigour, unless you mean rigor mortis. Ian Abel
I wouldn't say these are theoretical arguments... Let's just call them arguments.
Francois Rincon

It is better to be vaguely right than exactly wrong. Carveth Read (usually attributed to Maynard Keynes)



This qualitative explanation is not of sufficient quality. Eugene Churazov
If you mean it seriously, this is actually a very good question. Minhyong Kim
This paper is a tour de farce.
Ian Abel
What is modelling? You run a simulation, you compare. If it coincides, great! If it doesn't coincide, fuck! Felix Parra
I have seen papers where the student wasn't the problem. Michael Hardman
There has been a lot of fascinating work on this subject, most of it kind of boring. Philipp Kempski
So now you want us to drop everything we are doing and start worrying about what the big questions are?! Ian Abel
Oh dear, I thought I had some conclusions. Nuno Loureiro
I've got my little fingers inside this plasma. Steve Cowley
Words will play a big role in this talk. Dmitri Uzdensky
Everything that can be done should be done---and that's the astrophysical attitude. Michael Medvedev
What I will talk about is not low-hanging fruit. A lot of people have looked at this. There is no fruit here at all.---What about sour grapes? Michael Medvedev & Nuno Loureiro
In order to have a disappointment, you first have to have an appointment. Alex Schekochihin
In our experiment, we observed strong absence of magnetic energy. Archie Bott
Much as I somewhat hate this approach... Peter Davidson
Your infinity is my zero.
Mantas Abazorius
If I had known the outcome of this calculation, I would never have done it. Michael Hardman

Now that everyone knows this is the new Pandora's box, they are all going to jump into it. Francois Rincon

We must think outside the axisymmetric box. Georgia Acton
This is not real, it's a Platonic absolute.---The real thing is more Platonic and more absolute. Alex Schekochihin & Anthony Field
All I've done here is sacrificed equality in favour of inequality. Per Helander
Generally, it depends. Steve Majeski
This numerical scheme works fine, but it is physically disgusting. Bruno Despres
This research is not only not finished, it has not really been started. Anatoly Spitkovsky

[these quotes are mostly from Oxford plasma seminars and the Vienna meetings]
Invited Participants

Name Affiliation Week I
Week II
h
Seminar Title
Background Reading
Download
Ian Abel
Maryland
23-29

D
Stability of centrifugal mirrors

pdf
Georgia Acton
Oxford
23-

D
Full-flux-surface gyrokinetic code stella

pdf
Toby Adkins
Oxford
23-
-4
D
Do we really need the torus? Lessons learned from the humble slab (latest news on q scaling and thermo-Alfvenic instability in a GK torus).
arXiv:2303.14834
JPP 88, 905880410 (2022)
pdf
Claude Bardos
Paris 7

30-5
F
(with N. Besse) Homogeneous approximations for solutions of the Vlasov equation from quasilinear to Balescu-Lenard equation

pdf
Nicolas Besse
OCA Nice

30-
F
see C. Bardos


Archie Bott Oxford
24-28
31-4
D
Firehose-induced collisionality
preprint from author
on request
pdf
Ben Chandran
New Hampshire
23-29

H
MTM dispersion relation in a torus at zero collisionality
arXiv:2211.02103
ask
author
Steve Cowley PPPL

30-4
H
Magnetic reconnection from a different perspective

ask
author
Bruno Despres
Sorbonne



1) Scattering theory and plasma physics (Linear Landau Damping revisited, others, and extension to non homogeneous case)
2) Design of moment methods for numerical magnetized plasmas (with 3D calculation)
1) doi:10.5802/slsedp.144
J. Spectr. Theory 11, 709
(2021)

2) preprint
pdf
Vinicius Duarte
PPPL
23-29

H
Formulation of a self-consistent reduced transport theory for discrete near-threshold modes with applications to resonant dynamics in plasmas and galaxies
PRL 130, 105101 (2023)
arXiv:2208.03855
pdf
Robbie Ewart
Oxford
28-
-5
F
Buoyant bubbles confining cosmic rays

ask
author
Thomas Foster
Princeton
23-31

R
Particles orbits near rational flux surfaces in stellarators

pdf
Tunde Fulop
Chalmers

30-4
H
Seeding an avalanche: which snowflake is most responsible

pdf
Greg Hammett
PPPL
28-
-6
H
---


Per Helander
IPP Greifswald
23-29

S
Upper bounds on gyrokinetic instabilities
JPP 88, 905880207 (2022)
JPP 88, 905880313 (2022)
arXiv:2301.00988
pdf
David Hosking
Princeton
23-
-4
D
1) Metastable MHD atmospheres and their relaxation
2) Workshop summary (with F. Rincon)

1) ask
author
2) pdf
Plamen Ivanov
Oxford
23-29

D
Effects of flow shear in models of ITG and ETG turbulence
JPP 86, 855860502 (2020)
arXiv:2303.14834
+preprint from author
on request
ask
author
Philipp Kempski
Princeton

30-5
D
Towards a new theory of cosmic ray transport
MNRAS 514, 657 (2022)
arXiv:2304.12335
pdf
Matt Kunz Princeton
23-
-4
H
Week 1 summary

pdf
Martin Lemoine
IAP Paris

30-5

Discussion on on particle acceleration in turbulent environments

pdf
Nuno Loureiro MIT
27-
-4
H
Ruminations on reconnection


Stephen Majeski
Princeton

30-5
D
Wave interactions and turbulence in collisionless, high-beta plasmas
arXiv:2303.00468
pdf
Romain Meyrand
Otago
23-
-4
D
Reflection-driven turbulence beyond the Alfven surface
ApJ 707, 1659 (2009)
pdf
Richard Nies
Princeton
23-30

R
Radial magnetic drift effects on critical balance and secondary instability
PRL 85, 5336 (2000)
PRL 107, 115003 (2011)
PRL 110, 145002 (2013)
pdf
Felix Parra Diaz PPPL
23-28

H
Ideal MHD equilibria around stellarator rational flux surfaces

pdf
Patrick Reichherzer
Oxford

30-3
D
Micromirrors mediating multiscale motions in magnetised megastructures
preprint from author
on request
ask
author
Francois Rincon Toulouse
23-
-4
C
Workshop summary (with D. Hosking)

see
Hosking
Alex Schekochihin Oxford
23-
-4
H
---


Anatoly Spitkovsky
Princeton

30-5
H
Is there a better PIC simulation?

pdf
Hanne Thienpondt
CIEMAT
23-30

D
Turbulence prevents core particle depletion in stellarators
arXiv:2209.04194
pdf
Silvia Trinczek
Princeton
23-30

R
Neoclassical transport in strong-gradient regions
JPP 89, 905890304 (2023)
pdf
Dmitri Uzdensky
CU Boulder

30-5
H
---


Alex Velberg
MIT

30-6
D
Resistive-kink-induced turbulence in magnetic flux ropes

pdf
Evan Yerger
Princeton
23-30

D
---



WEEK I

Monday 24 July
Tuesday 25 July
Wednesday 26 July
Thursday 27 July
Friday 28 July
9:30 Coffee
9:45 Welcome/self-intros
9:30 Coffee 9:30 Coffee 9:30 Coffee 9:30 Coffee
10:00 Foster
11:00 Trinczek
10:00 Duarte
11:00 Meyrand

Van Gogh
See below for image credit
10:00 Nies
11:00 Ivanov
10:00 Thienpondt
10:45 Acton

Linear maps
Image by H. Thienpondt
click to see detail

10:00 Hosking
10:45 Kunz (week 1 summary)
13:00 Lunch/work/play
13:00 Lunch/work/play
13:00 Lunch/work/play 13:00 Lunch/work/play 13:00 Lunch/work/play
16:00 Coffee
16:00 Coffee 16:00 Coffee 16:00 Coffee 16:00 Coffee
16:15 Chandran
16:15 Helander
16:15 Adkins
17:15 Parra
17:00 Abel

20:00 Dinner at Marcodi
20:00 Dinner at Xpedit
20:00 Dinner at Osteria del Salento
20:00 Dinner at LE'O
19:00 Dinner at Heuriger Mayer am Pfarrplatz

WEEK II

Monday 31 July
Tuesday 1 August
Wednesday 2 August
Thursday 3 August
Friday 4 August
9:30 Coffee
9:45 Welcome/self-intros
9:30 Coffee 9:30 Coffee 9:30 Coffee 9:30 Coffee
10:00 Velberg
10:45 Majeski
10:00 Kempski
10:45 Reichherzer
11:30 Lemoine
10:00 Fulop
10:45 Spitkovsky

We do this...
Image courtesy of A. Spitkovsky

10:00 Ewart
10:45 Bott
10:00 Rincon & Hosking
(summary)

13:00 Lunch/work/play
13:00 Lunch/work/play
13:00 Lunch/work/play 13:00 Lunch/work/play 13:00 Lunch/work/play
16:00 Coffee
16:00 Coffee 16:00 Coffee 16:00 Coffee 16:00 Coffee
16:15 Despres

17:00 Loureiro
Nuno's
                      Reconnection
Art by F. Rincon
17:00 Cowley
Steve's
                    Reconnection
Art by F. Rincon

16:00 Bardos
17:00 JPP Colloquium: Sarkar

20:00 Dinner at Glasweise 20:00 Dinner at Ilija
20:00 Dinner at Mini
19:30 Dinner at Stomach



JPP-CUP Best Student Talk Prize (panel: D. Hosking, M. Kunz, F. Rincon):
Hanne Thienpondt


A to B
                      #1
Image gifted to this workshop by Kate Hammett (2023)
(the original is now in the private collection of T. Foster)
Van Gogh
Image made by Maxwell Busby, courtesy of R. Meyrand

A to B #4
Image gifted to this workshop by Kate Hammett (2023)

Logistics

The workshop will be held at
Wolfgang Pauli Institute, Faculty of Mathematics, University of Vienna,
Oskar-Morgenstern-Platz 1, 1090 Vienna, Austria
All seminars are in Seminar Room 08.135 (8th floor)

Hotels: Pension Ani-Falstaff (non-nonsense super-affordable studenty option),
Deutschmeister (perfectly fine),
Riess City Hotel (belongs to Deutschmeister, we have not tried it before),
Harmonie (somewhat self-indulgent, has AC)
Please contact Ms Stefanie Preuss (stefanie.preuss at  univie dot  ac dot  at) to arrange accommodation

City-airport train
Vienna information
COFFEE

Previous WPI workshops in this series:
2022, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, (2008), (2007), (2007)
Next workshop


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