I need some GR person

@DanielSank Hmmm?

@ACuriousMind Do you know that paper?

No

@ACuriousMind isn't a GR person

@Slereah But he knows weird things

I know that "emergent gravity" is Verlinde's favourite topic, though

See

He recently uploaded that large survey of the field

@AlbertEinstein, come back to help us out here! =P

By "large survey" is that "the articles he wrote himself"

@BernardMeurer "But he knows everything" (or almost) ;D

@Slereah Partly, but not mainly, I think

Like how the Hilbert bundle thing is entirely written by one guy

"A new theory says there is no gravity, no dark matter, and that Einstein was wrong" was the newstitle that linked to that article

Alas, this is not standard GR and it's not accepted physics, its speculative research, that much I can tell you, @BernardMeurer

@ACuriousMind There we go, thanks :)

It's not crackpottery either, though

more of a pet theory

what does he mean by emergent all the time

@EmilioPisanty Thoughts on this doc?

@Sanya "Emergent" means you don't assume gravity (or even spacetime), but some other structure whose laws then lead to gravity/spacetime.

@BernardMeurer thoughts on what?

@EmilioPisanty The theory I mentioned just now. And also the best Game Boy game because now I'm curious

@ACuriousMind thanks :) I wasn't sure whether there wouldn't be more to it

@BernardMeurer this?

Gotta love starlist flagging.

It's pretty bad but about par for the course

@EmilioPisanty Yeha, about this paper arxiv.org/abs/1001.0785

@arda I was wondering how a message from 2 hours ago got flagged. That would explain it.

@BernardMeurer oh. I thought you were talking about the latest go-round, arxiv.org/abs/1603.03312

@Flagger[s]: please read what you're flagging before flagging it. That message is not offensive.

^ agree

::freezes in fear::

@BernardMeurer ... for which the altmetric page displays a number of truly awful pop-sci news coverage

@EmilioPisanty I don't know about that one, I was mentioning that paper because it surfaced in a news outlet today

@BernardMeurer why's it in the news today? it's six years old

@EmilioPisanty Because after Trump won they got bored? Idk :P

(you know the quick trick for dating arXiv IDs, right?)

(I don't, how?)

Also, reading the titles on altmetric made me have a minor stroke

@BernardMeurer here's your recent one

springerlink.altmetric.com/details/1045108/news

man

@BernardMeurer arXiv:YYMM.(N)NNNN for post-2007 papers.

Oh god

@ArtOfCode Well, I'm sure it could be to some people. But I wouldn't consider the language outside of generally-accepted-social-norms.

Even only looking at the new titles on the altmetric page makes me froth with rage :P

To be honest I do not know how physicists survive reading the news about physics

I would die in about a week

tops

You gotta wonder how they manage to sell this as news, where all they're doing is redigesting a six-year-old paper, and they're not even bothering to hide the fact

@BernardMeurer we don't.

we look at them when it's absolutely necessary, but that's about it.

@EmilioPisanty We don't survive or we don't read them? :)

@ACuriousMind we don't survive if we read them; from the fact that we've survived so far you can infer that we don't read them. ;-).

Maybe I've been dead all along. A true p(hysics)-zombie.

Would at least explain my sleep cycle :P

I like reading these news

I don't know anything about any of that stuff, but I'm already worried for your health as physicists just skimming the titles =P

It's one of the few things that make me feel real smart

but yeah, how come that thing has eleven different news stories on it over the past month?

I cannot be bothered to go through all of them?

Well, one "journalist" stumbled across it and the others just copied and regurgitated what that one said, I'd bet

ah, likely sparked by this one journals.aps.org/prl/abstract/10.1103/PhysRevLett.117.201101

aaaaaanyways, moving on

I found this one on a library shelf today and I thought people here would enjoy it

books.google.de/books/about/…

> Journal of Current Laser Abstracts

It was an actual journal, bound in library volumes

Today was a sad day

filled exclusively with abstracts from the literature

All the beer I bought sucked

@EmilioPisanty Uh, what?

Was that how people "skimmed abstracts" before the internet?

@ACuriousMind a journal dedicated exclusively to having abstracts from a bunch of other journals

Well, I guess if you don't have internet, that's actually not bad

you read a paper, it has a reference, reference (obviously) doesn't have a title, you wonder whether it's relevant enough for a trip to the library or not. You go to J Curr Las Abs, it tells you the title and the abstract, you decide whether to go for the full thing or not.

kinda like an APS abstract landing page today, I guess?

it ran until ~1991

only weird thing is - if I go to the library anyway, I'd rather go for the right journal instead of the abstract journal if possible ...

@Sanya yeah, but this is something you can have in your research group's library where it's close at hand

eh well, I guess that then really depends on the spatial distance between your group's rooms and the actual library

but yeah, I see your point, especially if it wasn't too costly

global variables, object oriented programming...python is driving me nuts right now

Stay away from global variables

Slightly less mindblowing than pre-internet citation counts though. If I understand correctly Thomson Reuters actually published a catalog with every paper in some set and then who cited it.

back when "journal indexing" was actually hard work.

so i've been told. and so it was suggested to use a class for all my gate operations, because that apparently fixes the global thing, except i've never done object oriented programming before in python, just in JS, and that was, like, 2 years ago. and i didn't really understand it then. and now i'm just kind of stuck trying to figure out these object and class things. =/

I don't see why you need to mess with classes

Heck I barely ever do OOP because I find it messy

hmm ... there was a new question in the first posts review that I skipped - now it's gone but I'm still first in the last review queue; I don't understand this system sometimes

@Sanya Questions you skip are not shown to you again.

@ACuriousMind ah right

stupid me

I noted that before

but then it's late

@Sanya this? physics.stackexchange.com/questions/297273/… this? physics.stackexchange.com/questions/297278/…

in case you were still looking

they're the only two in the queue at the moment

@BernardMeurer, well, to be honest, I have no idea what I'm doing. I don't even understand the problem with globals I'm currently having. And then I have another problem which has to do with the way I'm setting up the two qubit circuit calculations. And I can't seem to figure anything out. =/

the QM one - I didn't want to judge it, so I decided to have someone else do that :D

@heather Oh how I envy you

Things are too easy nowadays :/

@Sanya You just didn't want to do the necessary spelling edits, admit it :P

Let me see your problem

"eigan state" ::shudders::

@BernardMeurer, you envy me?

@ACuriousMind Lol

github.com/physicsnerd/Quantum-Computer-Simulator/tree/TwoQubit

is the branch I'm working on

@heather Yeah, I miss the days of figuring everything out and having no clue what I was doing

@BernardMeurer, oh, okay. Well, understanding everything is probably pretty nice. =)

main-file.py is redundant, of course it's a file! :P

=P

yeah

@Sanya wait, how did momentum get into this?

i was feeling real creative when I named that

Not everything, it's just that these issues are nice to solve, they don't take too long the problems I have take too much effort and I'm lazy

@ACuriousMind nah well, I was more unsure whether I should be mean and flag it as homework - if I don't have a strong opinion on that, I skip them. But no - I wouldn't have bothered with the eigan 0:)

... but actually, that one is surprisingly nontrivial.

@EmilioPisanty momentum?

@Sanya $P$

@heather Where exactly is your problem?

@EmilioPisanty yep, I guess - but where did momentum get into?

oh wait

the commutator

@Sanya nah, they just mean $L$

yeah well

problem 1 is with function.py, and it is the whole global problem. so I'm not completely sure if I need to use the global keyword when I'm redefining qstat - partly because I'm confused on when/what to use global for. And then the control and target functions are all jacked up. For example, I didn't define mem3, but I don't use mem2, and I'm not sure it's even doing what I want it to do. And I think I need to use global on the mem variables but again I'm not sure.

but yeah, I'm writing an answer

it's ridiculously more complicated than you'd think from just looking at it

At this time of the night, I'd have been thankful for an explanation of his symbols first and all ... but yeah, sometimes the small things turn out to be mean complicated things after all

@heather It seems like a class might be a good out indeed

I have no clue what you're trying to do, but what I can say is: You have known input and expected output, you will know if they do what you want or not. Test!

and then problem 2 is with how I'm rewriting the elif qubits >= 2 section in the redundantly named main-file - I'm trying to set it up so that the user input for each qubit is a list, and then I'm trying to go through each list until I reach a point at which I need information I don't have, but of course there's errors in that because it's more of a sketch of what I need to do at this point. And, you know, it's also just kind of a mess.

You might be trying to do too many things at the same time

make sure point A works before working on A`

So pick an issue you'd like to fix

Find a way to test whether or not it works

and fix it

and move on

@BernardMeurer, well I thought all the functions (except control/target) were working, but then a couple users over in the python chatroom told me it was a problem that I wrote it that way. So then they tried to explain global and I got confused beyond belief. because up until that point I thought the function thing was alright. Which was why I plunged into what is now problem 2. I should probably start with fixing the functions.

Meh don't worry about that for now, fix bugs as they show up to you

so I think I'll start by running some tests on the normal single-qubit gate functions, and then I'll rewrite the control/target functions. I'll start by using the global keyword, but if necessary I'll try to figure out object oriented programming.

This isn't some production thing you have to deliver, it's just your personal project

@BernardMeurer, okay, sounds good. Thanks for, uh, introducing sanity back into my brain. =)

@BernardMeurer that's true too.

@heather I'm having beer with cheese as my dinner while I play Metroid II on a gameboy I used all my money on. If I'm "introducing sanity" you have a more serious issue at hand

lol

@BernardMeurer what about this is not sane?

perhaps "introducing sanity" was too strong of a phrase =P

@Sanya Good answer, when do we get married?

@BernardMeurer make sure my partner never finds this chatlog ;o

Actually, I can't. I have married my neighbour

that's a convenient choice too

Yeah, it's great. She went home for the week so I'm back to frozen food and booze

Plz come back neighbour I need some Schnitzel

@BernardMeurer Is your neighbour German?

you should learn to cook instead of coding ;)

@ACuriousMind Slovenian, there's a german one too but she's too pretty to like me

@Sanya Maybe when I get divorced, or move

@Sanya Real hackers cook omelettes on their overheated overclocked CPUs, I think

@ACuriousMind Real real hackers eat potatoes

@ACuriousMind multi-tasking ... that's a good idea

@BernardMeurer You eat your children?

I remember though that my old desktops actually got pretty warm while gaming ... never needed much heating in winter

Your moral depravity is even greater than I thought

@ACuriousMind Yes, it incentivizes the others to excel

Real hackers eat doritos and drink mountain dew

@Slereah V. true

Also, you people star the weirdest things I say

Who here likes cosmology?

@BernardMeurer The ways of the starboard are inscrutable

@ACuriousMind Indeed

Sadly my potato commend is now buried

@Sanya here's the first half of the answer

...where's Chris when you need him?