If
you know exactly what you are going to do, what is the point of doing
it? Pablo
Picasso 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 Let me put it differently: suppose we had a reactor... Per Helander 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 I've got a fishbone coming up. Tim Horbury 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. François Rincon We Hankel all the way in and then Hankel all the way out. Joseph Parker For the sake of fairness, let me mention that some people have objections to this, none of which are particularly valid. Chris Chen Yes, Steve, you have always known what we have only just figured out. Alfred Mallet This is more or less right. Perhaps less. Alfred Mallet You go ahead with your argument. I'll think. Steve Cowley Too simple? At the end of my talk, you will beg for simplicity! Andrey Beresnyak The point is not the point! Anonymous This is why I am presenting this here and nowhere else: nothing is solved! Ian Abel |
It is
better to be roughly right than precisely wrong. Maynard
Keynes This calculation is not intellectual masturbation: there's no orgasm. Anonymous Previous studies of this problem have been either unsatisfactory or limited in scope.---What is the difference between these?---This means either wrong or irrelevant. Anatoly Spitkovsky, Michael Medvedev and 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. François Rincon You can never be too happy with the state of your closure. Amitava Bhattacharjee For this plot, 1 is 6.--- Weeell, not even. Steve Cowley and Steve Balbus Это качественное объяснение недостаточно качественное. 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 We are stuck at x=0. 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 These simulations show more or less exactly the same thing. Francesco Califano 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.---Is it sour grapes? Michael Medvedev and Nuno Loureiro |
Name | Affiliation | Wk 1 Fusion |
Wk 2 Astro |
h |
€ |
Seminar
Title |
Background Reading |
Download |
Ian Abel |
Maryland |
28-3 |
D |
Y |
Centrifugal mirror confinement concept |
PRL 105, 085003 (2010) PoP 11, 2459 (2004) |
draft white paper (200kb) |
|
Lev Arzamasskiy |
Princeton |
3-10 |
H |
Y |
Kinetic turbulence in high-beta, collisionless plasmas |
pdf (22.2Mb) | ||
Justin Ball |
EPFL |
28-2 |
F |
N |
Turbulent self-interaction through the parallel boundary condition in local gyrokinetic simulations |
pdf (4.6Mb) | ||
Michael Barnes | Oxford |
28-2 |
H |
N |
--- |
|||
Archie Bott |
Oxford --->Princeton |
4-9 |
F |
N |
Whisper waves: an unlikely new arrival to the microscale zoo (Sub-electron-Larmor-scale dynamics in a high-beta plasma) |
preprint soon (ask author) |
pdf (18.5Mb) | |
Ivan Calvo |
CIEMAT |
28-2 |
B |
Y |
--- |
|||
Peter
Catto |
MIT |
28-3 |
H |
N |
Ripple modifications to alpha transport in tokamaks & quasisymmetric stellarators |
JPP 85, 905850213 (2019) |
pdf (1.5Mb) | |
Steve Cowley |
Princeton |
3-8 |
B |
N |
Reconnection of 3D magnetic fields |
pdf (20.1Mb) | ||
Ilya Dodin |
Princeton |
28-3 |
H |
N |
The Dimits shift and cross-scale interactions in reduced models of drift-wave turbulence: analytic theory and simulations |
pdf (9.8Mb) | ||
Bill
Dorland |
Maryland |
ar 29 |
lv 9 |
H |
Y |
1) The turbulent arrest of collisionless damping |
PNAS 116, 1185 (2019) |
|
2) Working group on gyrokinetic simulation algorithms | ||||||||
3) Pauli Colloquium: Waves in active, turbulent media |
Rep. Prog. Phys. 76, 116201 (2013) |
pdf (23Mb) | ||||||
Thomas Foster |
Oxford |
2-9 |
D |
Y |
--- |
|||
Daniel Groselj |
IPP Garching --->Columbia |
4-9 |
D |
Y |
Kinetic Alfven turbulence: an update |
pdf (1.8Mb) | ||
Ammar Hakim |
Princeton |
28-2 |
H |
N |
Full-stack (gyro)kinetics: novel algorithms and some results |
JCP 353, 110 (2018) arXiv:1903.08062 ApJ 872, L28 (2019) PoP 26, 012307 (2019) |
pdf (4.4Mb) | |
Greg Hammett |
Princeton |
28-1 |
H |
N |
Helimak simulations, and extension of Gkeyll to electromagnetic fluctuations for tokamak edge turbulence |
PoP 26, 042301 (2019) |
||
Michael Hardman |
Oxford |
28-2 |
F |
? |
Suppression of the ETG linear instability by ion gyroradius scale turbulence |
PPCF 61, 065025 (2019) +DPhil thesis from author |
pdf (3.4Mb) | |
Plamen Ivanov |
Oxford |
28-3 |
B |
N |
Zonal flow-drift wave interactions in two-dimensional curvature-driven fluid ITG turbulence |
preprint soon (ask author) |
pdf (1.7Mb) |
|
Philipp Kempski |
Berkeley |
ar 31 |
lv 9 |
F |
N |
Magnetorotational turbulence in weakly collisional plasmas |
arXiv:1901.04504 |
pdf (3.7Mb) |
Kris Klein |
Arizona |
ar 1 |
lv 9 |
H |
N |
The occurrence of microinstabilities in the turbulent solar wind |
PRL 120, 205102 (2018) |
pdf (9.4Mb) |
Sergey Komarov |
Cambridge |
3-9 |
D |
N |
Thermal conduction in a high-beta turbulent plasma (with update on new developments) |
JPP 84, 905840305 (2018) |
pdf (72.2Mb) | |
Matt
Kunz |
Princeton |
ar 1 |
lv 9 |
H |
N |
Kinetic plasma dynamo |
ApJ 863, L25 (2018) +preprint soon (ask author) |
<---see reading |
Nuno Loureiro | MIT |
ar 1 |
lv 8 |
H |
N |
Reconnection in magnetized turbulence, continued |
arXiv:1907.09610 |
pdf (7.4Mb) |
Michael Medvedev |
Kansas |
4-10 |
H |
Y |
On QED plasma modes |
ask author |
||
Romain Meyrand |
LPP, Paris ---> Otago |
ar 31 |
lv 9 |
Y |
--- |
|||
Lucio Milanese |
MIT |
28-3 |
B |
N |
--- |
|||
Michael Nastac |
Maryland |
29-3 |
F |
Y |
Phase mixing and echoes in toroidal gyrokinetics |
JPP 81, 305810104 (2014) JPP 82, 905820212 (2016) |
ask author |
|
Jason Parisi |
Oxford |
26-1 |
Y |
Toroidal and slab ETG instability dominance in the linear spectrum of JET-ILW pedestals |
preprint soon (ask author) |
pdf (8.7Mb) | ||
Felix
Parra Diaz |
Oxford |
28-2 |
H |
N |
--- |
|||
Arthur Peeters |
Bayreuth |
28-3 |
H |
N |
Structure formation in the zonal flow dynamics, and its impact on the nonlinear threshold |
PoP 23, 082517 (2016) PoP 23, 052309 (2016) PoP 24, 102317 (2017) PoP 25, 022505 (2018) |
pdf (2.3Mb) | |
Sasha Philippov |
Flatiron |
3-10 |
B |
N |
Coherent radio emission in astrophysics (discussion) |
ApJ 876, L6 (2019) |
pdf (15.1Mb) | |
Francois Rincon |
Toulouse |
4-10 |
D |
Y |
Can high-resolution
observations of solar surface convection teach us something valuable
about turbulent dynamics and transport in astrophysical fluids? |
A&A 599, A69 (2017) |
pdf (54.2Mb) | |
Alex Schekochihin | Oxford |
ar 29 |
lv 9 |
H |
N |
1) Collisionless relaxation and phase-space turbulence |
sec 8.5-8.7 of these notes + preprint soon |
<---see reading |
2) Reconnecting fluctuation dynamo |
ask author for preprint |
pdf (120.1Mb) | ||||||
Jono Squire |
Otago |
ar 31 |
lv 9 |
F |
Y |
Magneto-immutable turbulence in weakly collisional plasmas |
JPP 85, 905850114 (2019) |
<---see reading |
Libby Tolman |
MIT |
27-4 |
B |
Y |
Theory and modeling of fusion-alpha-driven TAEs in high magnetic field devices |
NF 59, 046020 (2019) |
pdf (3.1Mb) | |
Dmitri
Uzdensky |
UC Boulder |
3-10 |
H |
Y |
1) Extreme plasma astrophysics (a manifesto) 2) Relativistic collisionless reconnection |
arXiv:1903.05328 |
pdf (1.1Mb) | |
Vladimir Zhdankin |
Princeton |
3-10 |
F |
N |
Two-temperature plasmas in relativistic kinetic turbulence |
PRL 122, 055101 (2019) |
pdf (6.5Mb) | |
Muni Zhou |
MIT |
3-9 |
F |
Y |
Multi-scale dynamics of magnetic flux tubes |
arXiv:1901.02448 |
pdf (165Mb) | |
18+4 |
19-3 |
Monday
29 July |
Tuesday 30 July |
Wednesday 31 July |
Thursday 1 August |
Friday
2 August |
9:30
Coffee 9:45 Welcome/self-intros |
9:30 Coffee | 9:30 Coffee | 9:30 Coffee | 9:30 Coffee |
10:00 chair: F. Parra ITG Ivanov CROSS-SCALE Hardman |
10:00 ETG Parisi GK NUMERICS Hammett |
10:00 ITG Peeters CROSS-SCALE Dodin |
10:00 GK NUMERICS Ball |
10:00 PHASE SPACE Schekochihin-1 |
Lunch/work/play |
Lunch/work/play Dorland-2 1st meeting |
Lunch/work/play | Lunch/work/play | Lunch/work/play |
16:00
Coffee |
16:00 Coffee | 16:00 Coffee | 16:00 Coffee | 16:00 Coffee |
GK NUMERICS 16:45 Hakim Dorland-2 announcement |
ALPHAS 16:00 Tolman Catto |
FUSION 16:00 Abel |
PHASE SPACE 16:00 Nastac Dorland-1 |
Monday 5 August |
Tuesday 6 August |
Wednesday 7 Aug |
Thursday 8 Aug |
Friday 9 Aug |
9:30
Coffee 9:45 Welcome/self-intros |
9:30 Coffee | 9:30 Coffee | 9:30 Coffee | 9:30 Coffee |
10:00 RECONNECTION Zhou Loureiro |
10:00 HIGH BETA Arzamasskiy Bott |
10:00 SOLAR WIND Klein KINETIC TURBULENCE Groselj |
10:00 BRAGINSKII++ Squire Kempski DYNAMO Kunz |
10:00 THERMAL CONDUCTION Komarov |
Lunch/work/play | Lunch/work/play | Lunch/work/play | Lunch/work/play | Close at noon |
14:00 PAULI COLLOQUIUM (in Sky Lounge) Dorland-3 |
||||
16:00 Coffee | 16:00 Coffee | 16:00 Coffee | 16:00 Coffee | |
16:00 RECONNECTION Cowley EXTREME ASTRO Uzdensky-1 |
16:00 EXTREME ASTRO Zhdankin Medvedev |
16:00 EXTREME ASTRO Philippov DYNAMO Schekochihin-2 |
16:00 SUN Rincon |