The h Bar

2:00 PM

@ACuriousMind Jihad

@0celo7 Dschihad, obviously :P

I'm confused what you want to know

It's the same Arabic word - just the Anglophones write it jihad and the Germans Dschihad because the j doesn't make the right sound in German.

0celo7

@ACuriousMind You answered the question

Ah, you said transcribes above

I read it as something else

skullpetrol

Why would the arts trigger stem people @Slereah?

0celo7

because they do

link.springer.com/book/10.1007/978-3-642-61981-6

oooooh

"Practical Quantum Mechanics"

sounds like a bad title for a math book

$55 for a 180 page book

get out!

yuggib

@0celo7 Every first countable space is sequential. The existence of a countable family of seminorms implies metrizability (and thus first countability). So once you proved the existence of a countable family of seminorms, you have everything...

0celo7

2:13 PM

@yuggib I know that the existence of a countable family of seminorms implies metrizability, but Yosida does not mention it.

I didn't find it in Bourbaki either, but perhaps they don't call it by that name...

But can't you directly see that a countable family of seminorms implies first countability @yuggib ?

Yashas Samaga

What is the charge distribution of the induced charges on the sphere?

yuggib

@0celo7 it should be there on Bourbaki somewhere

Yashas Samaga

it is a shell

yuggib

in the tvs book

Yashas Samaga

If $q$ is positive, the outer shell will have -ve charge and the inner will have +ve, right?

0celo7

2:14 PM

@yuggib It's in Conway and diBenedetto.

Slereah

everything is in bourbaki somewhere

that's not very helpful

Yashas Samaga

My textbook says it is not uniform

0celo7

Well, Conway leaves it as an exercise.

yuggib

@0celo7 of course you can, that should be reasonably easy.

0celo7

But it's not too hard...

ACuriousMind

2:16 PM

@YashasSamaga Why should we care?

skullpetrol

@Slereah do any universities or high schools officially use bourbaki textbooks in France?

0celo7

@Slereah Ok, let's think about this. If $q\in I^+(p,\mathscr C)$, is there a timelike geodesic $\gamma$ between $p$ and $q$?

Slereah

@skullpetrol not that I know

Yashas Samaga

@ACuriousMind ?

Slereah

@0celo7 I think so, yeah

That's lemma 5.33 no?

or something

Yashas Samaga

2:18 PM

My textbook says the charge distribution on both the surfaces is not uniform.

ACuriousMind

@YashasSamaga I mean, why is that an interesting question?

Yashas Samaga

If it is not uniform, then it won't be equipotential?

Slereah

Also it's the theorem 1 of the causal properties in the normal neighbourhood

0celo7

@yuggib BTW, Springer is having a sale on certain books in the "Classics in Mathematics" series. I'm thinking about getting the first three volumes of Hörmander.

skullpetrol

50% off?

yuggib

2:20 PM

@0celo7 you should definitely get all four of them some day

0celo7

@skullpetrol Yeah. They're $30

@yuggib I don't know what the fourth volume is used for.

@yuggib I bought Kato yesterday

yuggib

@0celo7 Kato is a nice book

skullpetrol

@yuggib do you have all the bourbaki books?

0celo7

Bourbaki are like $170 apiece

Slereah

amazon.fr/s/…

About 40€ here

0celo7

2:30 PM

yeah the French versions are cheap here too

I should learn French

Slereah

130 for translation fees is a bit much

yuggib

@skullpetrol yes, I have all of them in both paper and pdf forms (in french)

skullpetrol

:O

0celo7

@skullpetrol I have all of the Spivak books. Does that count for anything?

skullpetrol

Yes.

How about Rudin?

0celo7

2:39 PM

I don't have a need for it

yuggib

there are many rudin bboks

0celo7

I don't have a need for any of them right now

yuggib

Fourier analysis on groups is nice

Yashas Samaga

Would the 'flux' tag be synonymous to any of the existing tags?

ACuriousMind

@YashasSamaga Flux is ambiguous - flux of what? Magnetic flux? Flux of photons? Flux in string theory? You're better off tagging the question with a more specific tag.

Yashas Samaga

2:42 PM

it would work well with other tags in combination?

Slereah

acid reflux

0celo7

FLEX

Yashas Samaga

magnetic-field and flux

would indicate it has something to do with magnetic flux?

electric field and flux

photons and flux

there are many questions which are about fields only

there are many questions which are exclusively about flux of some field

so I thought it would be a useful tag

0celo7

@yuggib Any other books from that series you can think of? I might get Federer too if I get accepted to a summer program I applied for. I wish I knew when I'll hear back from them...

ACuriousMind

@YashasSamaga Are there many on-topic questions about the "flux of some field"? I can't think of many questions about magnetic fluxes except "Compute in the magnetic flux in the following situation:"

0celo7

2:45 PM

@yuggib And you didn't say why Volume 4 of Hörmander is good

Yashas Samaga

@ACuriousMind physics.stackexchange.com/search?q=magnetic+flux

flux can in general be considered to be some quantity over unit area

ACuriousMind

I'm rather conservative on the creation of new tags: I think we have rather too many and not too few tags as it is, and I'm reluctant to create new ones unless it's really about a subject area not already covered by other tags. I don't really see a use case where you couldn't just search for questions tagged magnetic-fields (or even electromagnetism) and the word "flux". Why does it need to be a tag

Yashas Samaga

ok

It would probably be useless.

even if someone looked for questions on flux, they would see flux from various topics

unless they used multiple tags

yuggib

@0celo7 volume 4 of Hörmander is good if you do asymptotic spectral analysis, or if you work with pseudodifferential operators

@0celo7 I have only Kato, Yosida, and Hörmander on paper from that series

on pdf, I have also a Zariski book I think (but it is a very old text, and I never used it - also because I am not an algebraist)

0celo7

springer.com/us/book/9780387989310

idk how much perturbation theory I want to learn

it certainly seems interesting

skullpetrol

2:53 PM

cstaecker.fairfield.edu/~cstaecker/neighbors

0celo7

springer.com/gp/booksellers/sales/yellow-sale

@yuggib all books on sale ^

springer.com/us/book/…

sploosh

lol, on sale for \$70, used to be \$140

ACuriousMind

Why do so many people think this is an interesting question and not an irrelevant matter of definition :(

Sweeper

hello everybody

Yashas Samaga

@ACuriousMind herds

Anonymous

@YashasSamaga Hello! Why do you feel that the inner surface will have a (+)ve charge? The electric field due to external charge could very well terminate on the outer shell itself. The negative charge density will be towards right and the positive charge density will be towards left (again emanating the electric field perpendicular to its surface). I might be wrong, but I want to know why you feel that inner surface of the shell should get charged when the outer surface charge distribution changes?

Yashas Samaga

2:57 PM

Oh! That question has 10 upvotes. Let me add one for free!

0celo7

@yuggib springer.com/us/book/… I know you once recommended this

Is that still the case?

Sweeper

I want to know,what material parameter decides if material will absorb energy from AC magnetic field produced by solenoid coil? For example,people turn gases into plasma inside fused silica glass tubes,why its that the gas is turned into plasma and the glass not?

0celo7

@ACuriousMind Springer sales might be more dangerous than Steam sales :o

Yashas Samaga

@blue The outer surface will act as a faraday cage... hmm

0celo7

@yuggib Bourbaki Gen'l Topology is on sale...both volumes

ACuriousMind

3:00 PM

@0celo7 Steam sales aren't that dangerous anymore for me. My backlog is so large I don't buy games because they are on offer anymore

Yashas Samaga

@blue I thought the outer surface would induce opposite charges on the inner surface

@blue It now makes sense why the charge distribution is non uniform.

@blue If it weren't then it won't be able to keep a zero electric field inside it.

@blue thank you

ACuriousMind

Alas, my backlog doesn't exactly shrink; I bought Tides of Numenara yesterday...

Anonymous

@YashasSamaga Yes. You got it now!

Anonymous

You might be interested in the Method Of Images which explains such situations.

Yashas Samaga

I abuse method of images daily lol

Anonymous

3:03 PM

@YashasSamaga Eh?

Yashas Samaga

oops, fixed

my brain isn't functioning well :p

Anonymous

abuse?

Anonymous

daily?

Yashas Samaga

Not really.

I haven't solved problems since many months.

I used to solve 500 problems every day till October 2016

Anonymous

Hmm.

Anonymous

3:06 PM

Okay, see you around.

0celo7

@ACuriousMind My book backlog doesn't shrink either...but how can one resist cheap math books??

ACuriousMind

By not being into math books :P

Sweeper

k :-(

ACuriousMind

I don't have a single math book

yuggib

@0celo7 Yes, indeed, especially if you are interested in optimal transportation problems

Emilio Pisanty

3:07 PM

can someone pop over here and just say "hi"?

AccidentalFourierTransform

I don't have a single book

ACuriousMind

I think the one I read the most of is Hartshorne.

0celo7

@yuggib I applied to a different summer program about that

Emilio Pisanty

to ensure the chatroom isn't autodeleted later

@ACuriousMind thanks

ACuriousMind

@EmilioPisanty Wait, why does that prevent autodeletion?

yuggib

3:08 PM

@0celo7 general topology of Bourbaki is the reference text in general topology ;-P

0celo7

@yuggib I know

ACuriousMind

I think the autodeletion criterion is something like 14 day inactivity & no more than X messages and Y starred messages

0celo7

I'm not getting paid until neet week :o

I need to buy at least six books lol

Emilio Pisanty

@ACuriousMind needs ~15 messages and >2 users

0celo7

Springer sale y u do this

ACuriousMind

3:09 PM

@EmilioPisanty Ah

Emilio Pisanty

Also, at least one of those comments needs mod pruning, I should think

0celo7

@EmilioPisanty I don't know what you're talking about

Emilio Pisanty

ah, yes, here it is

chat.stackexchange.com/faq#retention

> A room is considered worth retaining if it has more than 15 messages by at least 2 users.

hmmm

maybe not, then

oh well

ACuriousMind

I just checked, there's a lot of frozen but not deleted rooms with exactly 2 users around, so you called upon invaders to your room for nothing :)

yuggib

@0celo7 don't you have access to the pdf of those books via your university subscription to SpringerLink?

AccidentalFourierTransform

3:17 PM

@DanielSank fun fact: my very first question on this site was closed as homework-like. I had no idea of what that meant lol

0celo7

@yuggib I do have access

but PDFs are not nearly the same as paper books

ACuriousMind

Right, a PDF is searchable, does not consist of dead trees and is weightless :P

AccidentalFourierTransform

^

0celo7

@ACuriousMind I usually search the PDF and then go the page in my paper copy

And I like killing trees just to piss off greenies

yuggib

I like paper books a lot, but pdf are often convenient

I have to admit that seeing the entire Bourbaki collection on the shelf is quite majestic

and on the other side (the physical side) there is the Landau series

0celo7

3:32 PM

I have four Weinberg books

Not all of them

I'm missing SUSY and QM

yuggib

3:51 PM

Until one week ago, I had never been asked to do the referee for a paper. Now, all the sudden I have to review two papers

for two different journals

0celo7

@yuggib I'm sitting in on an operator algebra seminar, what is a Hopf algebra? The wiki page is pretty unhelpful

AccidentalFourierTransform

2

yuggib

4:09 PM

@0celo7 something something something quantum deformation theory and the alike

0celo7

@yuggib next seminar is deformation of commuting squares

I would like to attend a PDE seminar. Sadly they don't advertise them

yuggib

@0celo7 deformation of commuting squares?? damn operator algebraists...they could do many interesting things, and instead they do that

I don't know if there are strong PDE guys at U Tenn. For sure there are many from around there that could be invited

vzn

4:33 PM

Physicists Catch Antimatter and Matter Misbehaving / sciam

L.K.

physics.stackexchange.com/questions/138792/…

Who deleted my written comments? and why?(this is for that one). So that I can see, what to change

May be moderators know this and can help

0celo7

@yuggib the lecturer promised it has to do with von Neumann algebras so maybe it will be nice

I'm just happy I can follow along right now

dmckee

@L.K. There was an obsolete flag on one of the comments there, and on reading them it seemed as though those four comments had come to a conclusion served their purpose (attempting to make the post better (the only official purpose of comments)). So I deleted them.

>

Nice one, just a clarification(in your second last para about discrete spectrum). As I change t0
little bit, to sayt1=t0+δ, we get new quasi energy, because we know U(t0+T,t0) gives ϵ0(which is precisely the phase quantum state has acquired during that evolution) and similarly U(t1+T,t1) will give ϵ1
? – L.K. 1 hour ago deleted by dmckee♦ 12 mins ago undelete
1

@L.K. No, the quasi-energy doesn't change. The propagator formulation is a fancy restatement of |Ψ(t)⟩=e−iεt|Φ(t)⟩
, where |Φ(t)⟩ is periodic; on that subspace, the propagator reads U(t,t′)=|Ψ(t)⟩⟨Ψ(t)|=e−iε(t−t′)|Φ(t)⟩⟨Φ(t)|. …

As an aside, having dealt with a flag like that I am unlikely to look back at the question to see an additional comment.

Emilio Pisanty

4:49 PM

@L.K. Ah, I marked the comments as obsolete, but I hadn't seen your edit to the final comment.

Generally we trim comments like that (clarifications that have been resolved) to keep the signal-to-noise ratio up for future visitors; if you want it to stick around, put it in a post.

I don't understand your final question, to be honest.

dmckee

Hmm. Cut and past from comments to chat that was mangles the MathJax. Sorry about that.

Emilio Pisanty

$|\Phi(t_1)\rangle\langle\Phi(t_1)|$ is obviously different to $|\Phi(t_0)\rangle\langle\Phi(t_0)|$. That just tells you that there need not be any special relationship between $U(t_0+T,t_0)$ and $U(t_1+T,t_1)$, but we already knew that.

@dmckee meh, it shows the essentials.

L.K.

@dmckee @EmilioPisanty I understand now. I am sorry for any other misunderstanding.

Emilio Pisanty

@L.K. no worries, SE has some unintuitive features sometimes.

Sir Cumference

5:07 PM

Anyone want to hear a physics joke?

OBE

yes

Sir Cumference

What did one photon say to the other?

0celo7

@yuggib We hired two geometric analysts, one who does Ricci flow on $\partial$-manifolds, and a geometric measure theorist. Maybe we can get a geometric analysis seminar going next semester.

OBE

@SirCumference dunno

Sir Cumference

@OBE Nothing. Photons don't talk.

OBE

5:08 PM

nice

0celo7

Stupid

@OBE are you reading Jost?

OBE

not right now

Mostafa

5:34 PM

Here it is shown that Genghis Khan is an ancestor of 0.5% of the current world's population.

vzn

@Mostafa yep. seems, he was quite a crazy character. but, accounts differ.

Yashas Samaga

@AccidentalFourierTransform lol that guy's reply "learn" :'D

AccidentalFourierTransform

@AccidentalFourierTransform learn — wld.qtr 4 mins ago

x)

vzn

@SirCumference (lol) or how about "you light up my life" :P

dmckee

5:51 PM

@vzn That's singing.

Sir Cumference

6:01 PM

@vzn Or maybe it just waved

dmckee

^ ::chuckles::

@BalarkaSen When I read "I too am typed" my first interpretation was in terms of the programing concept.

As in

Physicist dmckee(ExperimentalT,ParticleField,UnderPaidT);

Slereah

I think I'mma gonna do a topology cheat sheet

0celo7

@dmckee you always complain about being underpaid :(

@Slereah go for it

Slereah

Munkres to the rescuuue

Mostafa

@0celo7 ^

Slereah

6:16 PM

I'm paid $0 right now

I'd love to have $110.000

AccidentalFourierTransform

is 0$ a lot?

I dont understand money

dmckee

@Mostafa Like I said. I'm underpaid. By a lot.

0celo7

Who is paying six figures for a particle physicist?

dmckee

Labs and (actually, serious) universities, mostly.

Emilio Pisanty

0

Q: How does a torpedo data computer work?

I don't need to know everything about it. In fact, I don't mind if you explain how a general electromechanical analogue computer works. I can understand normal mechanical analogue computers for the most part, (I read about the differential analyzer) but I'm wondering how you can make something li...

on topic?

Slereah

6:20 PM

I think this might have a broad interpretation of "particle physicist"

Like they might count medical nuclear physicists in there

dmckee

And the few jobs in industry that are particle physics based are development jobs for technologies that sell for hundreds of thousands or more, so they pay pretty well, too.

@Slereah I know of couple of those guys. They tell me that they are the only Ph.Ds the MDs will call "doctor". Don't know if that is true, but its what I've heard.

Slereah

what a bunch of pricks

Maybe we should call MDs medical engineers, see how they like it!

3

dmckee

@EmilioPisanty Not really, as far as I can see.

I mean the principle of operation of the sensors would be, but that doesn't seem to be the question.

Emilio Pisanty

@dmckee if true, those folks might could benefit from a look at the etymology of "doctor"

dmckee

Well, yeah. But I think their excuse is that "doctor" means a kind of authority in a medical setting.

And there is some truth to that.

Emilio Pisanty

6:25 PM

@dmckee that's not an excuse, that's just them rephrasing the same stuff

"you can't call yourself doctor" "why?" "because only we can be called doctor"

0celo7

@dmckee there are engineering profs at my school who make 300k

But no physicist would get paid that much

DanielSank

Just filled out the Physical Review referee survey.

dmckee

People don't go into physics for the money. Nor the groupies.

DanielSank

Gave 'em a piece of my mind.

I think their mostly doing things right.

@dmckee Ho boy that is not true at all.

Hee hee you gotta meet the right folks.

dmckee

@DanielSank I'm not saying that physicist don't get paid, but how many undergrads do you meet who say "I'm a physics major because of the pay"?

0celo7

6:37 PM

I guess engineering salaries are higher because the school has to compete with companies

dmckee

There are high paying jobs, but the breadth of the pay scales is astounding.

0celo7

I think he was talking about the groupies.

DanielSank

@dmckee Wellll, fair enough.

Some times I think academia is all about the groupies though ;-)

@0celo7 Correct.

@0celo7 Yes, absolutely.

@0celo7 Some do, but not a lot.

@dmckee I gotta say though, I didn't go into physics for the money, but I knew going in that it would eventually get me a solid living.

Emilio Pisanty

@DanielSank I think I missed the class in uni where they explained where the groupies are

4

DanielSank

I think as long as a physics-trained person is willing to look outside the university system it's not hard to find well-paying jobs.

dmckee

6:40 PM

@DanielSank That's where I was, too. Not worried about pay, because there would be enough.

DanielSank

@dmckee Well, my dad is physics-trained and he does really well working in the space industry.

I grew up knowing that if you're willing to go build stuff and work outside the uni, you can make a lot with the skills that come with a physics PhD.

Mostafa

@0celo7 People are willing to pay/do anything for their health more than any other thing. That's a fact. The above search for cardiac surgeon salary returns a median of $540k.

DanielSank

@Mostafa wow

vzn

← only in it for the groupies

DanielSank

You know,I got into physics because of an interest in biomechanics.

@vzn you're in physics?

I thought you were a programmer or something.

vzn

6:47 PM

@DanielSank we're talking about physics? OH :P

DanielSank

Heh

vzn

feynman might have had a groupie or two. more after winning the nobel. in a brazilian hotel. or two. or strip club... somehow a lot of accts of his life tend to skip over that part.

DanielSank

@vzn they do? I feel like that stuff is pretty prominent in his books.

vzn

@DanielSank which books? he has several at least with not much mention of women.

Mostafa

this book ^

DanielSank

6:54 PM

@vzn I don't remember.

0celo7

Time dependent perturbation theory is a mess

The time scales have to be tiny for anything to work

And the math is all BS

AccidentalFourierTransform

yes indeed

and Fermi's golden rule was derived by Dirac

a friggin mess

0celo7

Fermi's golden rule is not rigorous at all

AccidentalFourierTransform

7:13 PM

welcome to the wonderful world of physics.

0celo7

how do you people survive?

how have you not killed us all with this BS

Slereah

Remember that time when physicists suspected that detonating a nuclear bomb would ignite the entire atmosphere?

And they did it anyway?

0celo7

wtf I hate physicists now

Slereah

"Teller also raised the speculative possibility that an atomic bomb might "ignite" the atmosphere because of a hypothetical fusion reaction of nitrogen nuclei."

Mostafa

@Slereah Actually politicians did it not the physicists.

rob

7:18 PM

@Slereah That was one of the bets in the pool for the folks who were trying to predict the yield of the Trinity test. Another bet was "zero"

Slereah

Pretty bad bet

even if you won, the atmosphere sitll exploded

Mostafa

@0celo7 Why should it be rigorous?

See this answer:

29

A: Is the Mendeleev table explained in quantum mechanics?

I am not offended by the suggestion that physicists should follow the standards of mathematical proof, but I think this suggestion and the phrasing of the question demonstrate a lack of understanding of how physicists think about such things and more importantly why they put such little emphasis ...

16

A: Is the Mendeleev table explained in quantum mechanics?

Yes, quantum mechanics – even non-relativistic quantum mechanics for several electrons orbiting nuclei – fully, quantitatively, and comprehensively explains all of chemistry (including biochemistry and, in fact, biology). This fact has been known since the late 1920s. To understand the periodic ...

vzn

@Slereah one thing that has always amazed me about atom bomb construction was that even the physicists subscribed to the view along lines of "if we dont build it, someone else will, therefore we must build it"... no less than einstein wrote that to FDR... in other words in some sense the birth of MAD started with scientists, not politicians o_O

Slereah

well it's true

Germany was working on it, too

vzn

@Slereah it may have been true that other ppl were working on it, but the idea that therefore that compels one to do the same is spurious at best... think its a sort of semicrazed peer pressure... think its not inevitable that anyone would have succeeded, and its interesting how similar sputnik episode was wrt "national motivation/ rivalry" etc...

Slereah

7:29 PM

Well I mean do you think the consequences would have not been dire if the USSR had it and the US didn't

Sir Cumference

@DanielSank Still though, a not-so-well paying job in an incredibly competitive field that requires many years of school

vzn

@Slereah its not clear the USSR would have succeeded without US doing it 1st. plans were stolen by USSR. it also took massive US effort, in a sense birth of US warmachine

Sir Cumference

That's not exactly seductive

Slereah

@vzn they might have gotten a boost after nabbing all those german scientists :p

AccidentalFourierTransform

having a job is embarrassing

vzn

7:31 PM

@Slereah it reminds me of game theory, prisoners dilemma in some ways.

Slereah

yeah

vzn

@AccidentalFourierTransform do you have new job?

AccidentalFourierTransform

no, that's primitive

0celo7

@Mostafa why should it be correct if it's not rigorous?

AccidentalFourierTransform

being rigorous isn't normal

but on math it is

math, not even once

Slereah

7:36 PM

why should it not be rigorous if it's always correct

0celo7

@Slereah you can't talk bad about math when you're trying to do rigorous proofs in GR

Slereah

Math is all a lie

JD was right all along

0celo7

@Slereah also because you've certainly never tried every experiment and hamiltonian

Slereah

you don't know my life

AccidentalFourierTransform

I solved the most general Hamiltonian, and the result was right

it predicted this very same conversation

0celo7

7:39 PM

then you had plenty of time to come up with better arguments

Sir Cumference

@Slereah Whatever happened to him?

AccidentalFourierTransform

he ded

Tung Nguyen

Hi Physics SE fellows, how do I calculate the amount of waters flows out of a container, when that container is originally closed and filled with water and is heated ( so that the inside pressure increases) and then is left open?

Sir Cumference

Oh woah

Slereah

He's banned for a year

0celo7

7:40 PM

His ass got banned from the main site for a year

Sir Cumference

"This account is temporarily suspended to cool down. The suspension period ends on Feb 26 '18 at 18:08."

How?

Slereah

for being JD

0celo7

The wonderful people who call themselves mods never tell us why they do things.

AccidentalFourierTransform

(removed)

Mostafa

@0celo7 What do you mean by correct? Nothing is correct in physics in that mathematical sense.

0celo7

7:43 PM

Then physics is all a lie, as I said.

Mostafa

From Howard Georgi's Waves Physics book^

AccidentalFourierTransform

thats not the same

if you assume linearity, then the conclusions follow

that is rigorous

0celo7's point is that sometimes the conclusions do not follow from the assumptions

Mostafa

@AccidentalFourierTransform Then wouldn't the periodic table (or other parts of physics) be rigorous too within their intended framework?

AccidentalFourierTransform

not necessarily. That depends on how precisely you define the framework, and on how rigorous you are in your manipulations from the axioms to the results

if the results are the framework themselves, then yes: everything is rigorous

but that's not the point

Sir Cumference

@TungNguyen Hey Smithy, can you do me a quick favor?

Check over this code

0celo7

7:56 PM

@Mostafa Most of quantum mechanics is wrong, from a mathematical standpoint. The axioms are fine, except for that one axiom that says every Hermitian operator has a complete eigenbasis.

The fact that that statement is demonstrably false should be worrying to physicists, but it's not.

I think there's some deeper thing going on here. You don't even have to consider pathological Hamiltonians for the most basic theorems to fail.

$H=p^2+x^4$ is pretty horrible already.

Sir Cumference

@TungNguyen Oh crap, sorry. Wrong room, wrong person

3

0celo7

@SirCumference ??? how did you manage to do that

AccidentalFourierTransform

> Wrong room, wrong person

lol

Sir Cumference