/sci/ - Science & Math

[Anonymous No.10398933]

>subject
>part of your subject you're too much of a brainlet to understand

[Anonymous No.10398936]

>quantum computing
>every time I read about tensor products I want to hang myself in the attic

[Anonymous No.10398942]

>organic chemistry
>tfw shit at spatial reasoning

[Anonymous No.10398952]

>>10398933
>stats
>mgfs

[Anonymous No.10398960]

>>10398933
>literally everything
>literally everything

[Anonymous No.10398962]

>precalculus
>series

[Anonymous No.10399010]

>>10398933
>particle physics
>vector and axial hadronic currents

[Anonymous No.10399030]

>>10398936
The fuck are you talking about, tensor product spaces are the most fundamental aspect of quantum computing/information. There is literally no discernable difference between the theory of classical convex cone probability theory and generalized (quantum) complex Hilbert space probability theory without the notion of a bipartite system.
I mean, fuck computing, you can't even talk about fucking fermions or bosons or even systems on more than 1 physical dimension without tensor products. If you only know how to work with 1D infinite wells or 1D harmonic oscillators, you need to seriously brush up on fundamental QM before becoming involved in QI/QC.

On-topic though, and amusingly related terminologically, I still don't really get the whole deal with tensor networks and matrix product states. Half my group works on them and I just nod along mindlessly. But fuck it, I just tell myself MBQC is a big meme anyway.

[Anonymous No.10399055]

>Mathematics
>euclid's proof of pythagoras therom

[Anonymous No.10399081]

>>10399030
>doesn't understand QC undergrad material like matrix product states
>autistic enough to berate someone else for the same problem

[Anonymous No.10399109]

>>10399055
ϕank me later.

https://www.youtube.com/watch?v=2IemLpxJ5SI

[Anonymous No.10399240]

>>10398933
>undergrad math
>calculus of variations

[Anonymous No.10399282]

>>10398960
this

brainletism is the worst possible curse

[Anonymous No.10399601]

>>10399282
What do we do?

[Anonymous No.10399754]

>>10398942
same here, i understand stuff like qm, statmech, thermo, etc just fine, but when you ask me to tell you where a fucking reaction is gonna take place i shit my fucking pants

[Anonymous No.10400057]

>>10398933
>CS
>B-Trees
No idea how someone thought that shit up

[Anonymous No.10400259]

>>10399601
just pretend

[Anonymous No.10400283]

>Operations research
>Anything above CalcIII
I get PhD students to test all kinds of ideas until one doesn't fail spectacularly. Then I publish.

[Anonymous No.10400303]

>>10400283
How do I become you?

[Anonymous No.10400358]

>>10399030
>Half my group works on them
you mean a research group? Are you a grad student?

[Anonymous No.10400361]

>>10400283
How does your uni rank? also >>10400303, how tf did you get in to grad school?

[Anonymous No.10400782]

>>10400057
literally a self balancing tree that is not binary and can have more than 1 element per node
https://www.youtube.com/watch?v=C_q5ccN84C8

[Anonymous No.10400799]

>>10400358
Yes to both
>>10399081
I understand how they work mathematically but I don't get why they're such a hot topic. My focus is on NISQ devices though so maybe I'm biased and just can't see any practical use for now.
And no they're not undergrad QC material, no you didn't learn about tensor networks in an undergrad course. I know /sci/ is all about extreme larping but come on.

[Anonymous No.10400833]

>>10400303
>>10400361
Still early career, but I've worked at places in the top 50-250 range.
Chronology:
>bachelor's at a podunk college
>master's from a respectable place
>Acquire social skills and charisma while there
>good with Excel, so got recommended to do a PhD with one of the stars of the field at a uni in the top 150.
>get a legendary emeritus prof as behind-the-scenes mentor
>taught by Yoda to see through the matrix, and how to game the academic processes (especially publishing)
>Picked up the quantitative tools necessary to get top publications (you can get away with a lot, as long as you are selective)
>Finish the strongest PhD in the history of the department with four papers in top journals
What worked was: Delivering the goods, being pleasant and social, being helpful, learning the system, not only the trade
What hasn't worked: Getting involved in too many things; jealous cunts; wasting energy on parasites; not cutting my losses quickly enough

In essence, I have a grasp of the field, and the network to broker between competencies and people who have access to data, while I know the process of turning results into a world-class paper.

[Anonymous No.10401033]

>>10398952
Came here to say this as well my dude. I have a test in a few days which covers MGF's and I'm shitting bricks. About to hit the books actually and hope I figure it out, good luck anon

[Anonymous No.10401904]

> Guitar playing
> Music theory

I feel like a failure

[Anonymous No.10401913]

>>10401904
>Understand music theory
>Not talented enough to play an instrument
I'd rather be in your boat.

[Anonymous No.10401916]

>>10400833
Was your connection with Yoda pure chance or did you know about him before applying? What do you think influenced him taking you as a mentee? Any tips on finding top profs at universities before and after admission? When in your career did you decide to do operations research in graduate school (I'm having trouble settling on a field for undergrad)? Do you plan on going into industry or academi in the future? Probably the most important question: how *do* you play the game of academia?

[Anonymous No.10402210]

>>10398933

>Mathematics
>Topology

[Anonymous No.10402467]

>>10401916
>Was your connection with Yoda pure chance or did you know about him before applying? >What do you think influenced him taking you as a mentee?
Pure chance, but achieved by putting myself out there and being a positive influence on people. Grow your network, and opportunities will come.
>When in your career did you decide to do operations research in graduate school?
After a master's in management. I didn't choose, but was told "Go there and do a PhD with X and Y".
>Do you plan on going into industry or academi in the future?
Moving away from wageslavery is the long-term goal. The whole research field is stagnant.

>I'm having trouble settling on a field for undergrad
Think about the next step. While in undergrad you will want to pick up stats, basic math, programming, simulation, and business/accounting, even if you do it on overtime. Did I mention stats? And while you are studying, don't spend too much effort on what is in detail theoretically correct or interesting, but what effort will give you the desired grades. Apply this to work later.

>Probably the most important question: how *do* you play the game of academia?
Know the core processes, and how they are evaluated at promotion and hiring: {teaching and supervising, getting funding, publishing}.

Know what makes a good paper and how to get it published. This is getting more complicated, as you both need to write an interesting paper, and get it past editors and journal referees. In short, don't write a paper for yourself, but for the people who will approve its publication. For top publications, your network and your innovation will matter. Learn innovation.

Know how to get funding:
Networks, and promising more than you intend to deliver.

Mentor your juniors to help you clarify your own thoughts.

That's about it. GL undergradanon.

[Anonymous No.10403029]

>audio related signal processing
>Woodworth model for interaural time difference

[Anonymous No.10403895]

>Algebra
>Algebraic Topology

[Anonymous No.10404421]

>>10398933
>computer science
>linked lists
it's ok though, i got in through affirmative action, i can get c's and i'll get a job handed to me too because of the same.

[Anonymous No.10404498]

>>10404421
>linked lists
Anon, if you have said "compilers" or "machine learning" I'd be right there with you, but... linked lists? It's.. a list. Every item has a pointer to the next item. How is that hard to understand and furthermore, how the fuck can you graduate without knowing what a linked list is

[Anonymous No.10405816]

>>10403895
I'm going to fail, fuck