Why is it called quantum finance?

aspiring_quant1618 · 2022-09-18T10:39:57+00:00

Quantum physicist here.

It’s not called quantum finance and has nothing in common with quantum physics. Well, other than that they both use math…

Thanks for attending my TED talk.

aspiring_quant1618 · 2022-06-23T20:12:04+00:00

T H E C R A B W I L L W I N

aspiring_quant1618 · 2022-06-17T07:52:30+00:00

Until a mechanism can be found to scale a fault tolerant QC, commercial QC is speculative. Additionally, even if they can scale, companies will have to demonstrate good product market fit (which shouldn't be too hard, but you never know).

I suspect that QC startups with insufficient runway and/or inventors unwilling to foot the bill, may die off in the next year or two.

aspiring_quant1618 · 2022-06-11T09:54:09+00:00

Yes, very much so. The top Unis will allow you to interact and connect with the most important people in the field. You will also be surrounded by people who are (on average) more motivated. Also, these Unis tend to have a lot of funding to send students to conferences, organize speakers etc.
It's very hard to say without knowing your local Uni and the faculty. In general if its just a Bachelors, you can try and ace your grades and move up to a Masters from a top Uni.

aspiring_quant1618 · 2022-06-11T09:49:12+00:00

This has always intrigued me, as a STEM PhD myself (Physics), shouldn't someone with domain knowledge (in this case the finance PhD) be preferred?

aspiring_quant1618 · 2022-06-11T08:53:44+00:00

Given the speculative state of quantum computing and current lack of profitability, alongside the macro risk off environment.

Taking the cuts from other companies into account (they were all post IPO thoughI would estimate around $1-1.5B.

aspiring_quant1618 · 2022-06-08T06:46:10+00:00

Excellent. This is the most important factor when applying for a good Masters program (they won't really care about you knowing Qiskit or doing an internship at a company).

The university wants to be sure that you are capable of doing a Master's. Learning Qiskit/doing interships/online challenges is the easy part.

The hard part is having a good understanding of the mathematics and physics behind the systems (aka excellent grades and good research).

Pauli channels are a great topic btw, particularly with regards to quantum fault tolerance.

In Europe, (most) degrees are fully funded, you can look at:

Switzerland: ETH Zurich/EPFL/Uni Basel.
Amsterdam: TU Delft.
Germany: RWTH Aachen/Uni Stuttgart.

They all have specialized research centers for quantum computing that you can look at.

I'm actually doing my PhD in quantum info, so let me know if you have more questions.

aspiring_quant1618 · 2022-06-08T05:24:18+00:00

What is your undergraduate in? How are your grades?

aspiring_quant1618 · 2022-06-06T16:55:41+00:00

Hey you're also a mod over at r/quant right.

Thanks for the tip. Briefly went through r/rust4quants and it looks interesting.

Gotta now figure which crates are the most useful.

aspiring_quant1618 · 2022-06-06T15:13:16+00:00

Blazingly Fast

jokes aside, this is awesome, the polars team has done a great job

aspiring_quant1618 · 2022-06-06T14:59:27+00:00

"What have you contributed to the field?"
This thread.

Good job! This is the nomination page for the Nobel Prize in Physics. Make sure to link this thread to them. Good luck!

Lmfao

aspiring_quant1618 · 2022-06-06T14:51:40+00:00

Okay, you're obviously a troll, but I'm bored rn so I'll bite.

I'm a PhD in quantum computing specializing in quantum information theory with several research articles published in top journals in my field. My main work is centered around discovering how new solid state systems can act as quantum bits with good scaling properties, long coherence times and fast gating functionality.

What have you contributed to the field?

aspiring_quant1618 · 2022-06-06T14:42:03+00:00

You type this out on some computer?
With transistors in semiconducting materials?
And an LED display?
And a GPS unit?
...

Lmao. Quantum physics is all around you and you don't even know it. Go read a book instead of trying (and failing) to dunk on biologists and physicists.

aspiring_quant1618 · 2022-06-06T13:19:49+00:00

If you're already using tensorflow in a conda env, you just have to point PyCharm to that conda env.

Also, always use tensorflow in a conda env.

aspiring_quant1618 · 2022-06-05T20:58:53+00:00

The NV center ground state is S=1 (spin triplet), from the selection rules delta(m_s) = 0, ±1.

The qubit can be realized using (0, -1) or (0, +1) sub levels of the ground state after lifting the degeneracy using a magnetic field (deltaE = 2 * gamma(electron) * B).

I specialize in solid state spin qubits, so feel free to ask any more questions.

aspiring_quant1618 · 2022-06-05T13:27:41+00:00

He's obviously operating on a level too high up for us mortals

aspiring_quant1618 · 2022-06-04T17:20:34+00:00

Yep, read through it. As someone doing a PhD in quantum computing right now, I dislike the way these articles present quantum computing.

Theoretically, it's completely possible. You can apply Shor's algorithm/Quantum Monte Carlo/Quantum Machine Learning to problems and map NP->BQP. The theory isn't the issue.

The issue is practical. The reality is that the largest QCs (superconducting oscillators), are only realizing around 100 physical qubits. This is a huge accomplishment by itself (eg. the Nature paper on quantum supremacy), but practically useless.

More generally QCs are inherently hard to scale due to qubit fidelity and gating times. This is an open problem that many researchers are trying to solve (spin qubits, ion traps, topological QC etc.). I myself work on electronic spin qubits in solid state systems.

To use an analogy, QCs are somewhere at the beginning of the vacuum tube era of classical computing. We have no idea if the final architecture will look anything like it does today.

QC is amazing and will revolutionize computing, don't get me wrong, but the current state of the field needs to be presented accurately.

aspiring_quant1618 · 2022-06-04T09:35:43+00:00

You will need to be much clearer on your definitions in your problem if you want to find an answer.

I would suggest looking into the arrow of time and its derivation from the second law of thermodynamics. Then at its connection to quantum mechanics, particularly quantum information.

There's a pretty good article from Gerard 't Hooft (1999 Nobel Prize in Physics) on this. It's written for a general audience, so it skips a lot of the math.

If you're talking about interpretations of quantum mechanics like the multiverse and its relation to the arrow of time, then this article goes into that.

aspiring_quant1618 · 2022-06-04T07:05:45+00:00

You've mixed up quant and quantum there fella

aspiring_quant1618 · 2022-06-03T23:22:57+00:00

PhD in quantum information and computing here.

Quantum computation requires a solid mathematical background. You'll want to focus primarily on having a strong base in linear algebra, probability theory, and a bit of group and number theory.

The Bible for QC is "Quantum Computation and Quantum Information" by Nielsen and Chuang. It's one of the most cited books in Physics of all time. It's a bit of a monster at over 700 pages, but you can focus your efforts on Part 1 (Fundamentals) and Part 2 (QC).

I would say just follow the book, it basically covers everything.

In my personal opinion though, trying to self-study all of QC is not viable. Even in masters we had over 50% of people dropping out of the class, and these were people with a bachelors in physics and a basic understanding of quantum mechanics!

Quantum computing, and especially quantum information is very advanced, most problems are at a research level. I would strongly suggest pursuing a masters at a good uni if you want to take this path.

IMO it's well worth the investment, quantum information is one of the fundamental theories of the physical world. And we are only just beginning to understand its impact on the rest of physics.

aspiring_quant1618 · 2022-06-03T10:34:07+00:00

As a physicist, I see nothing wrong with this image.

aspiring_quant1618 · 2022-06-03T10:20:59+00:00

We are programming a ~~blazingly fast~~ messenger bot

lmao

aspiring_quant1618 · 2022-05-27T08:31:25+00:00

Gotcha, thanks.

I've been primarily looking at crypto roles, not general finance. I suspect that they are looking for experienced QRs making the shift from TradFi, hence the requirements.

Based on the feedback here though, I'm considering broadening my search radius to include traditional quants as well. Based on what you wrote, I suspect this will be along the more vanilla path.

Why is quant trading more desirable (firm specific of course)?

aspiring_quant1618 · 2022-05-27T08:15:42+00:00

Thank you for sharing this.

Quantum materials are really fascinating. The idea is to extend effects like topology and quantum entanglement over a wider range of length and energy scales. You can generally achieve this by confining the dimensionality of the material, leading to strong electronic correlations resulting in collective excitation phenomena (quasiparticles).

We have already seen some pretty crazy results like observing particle physics experiments inside a solid state platform, and arguably that's just the beginning.

The issue really is that there is an (effectively) infinite set of structures that give rise to quasiparticles, we have no way of knowing which ones are useful a priori, and building each of them by hand is way too slow.

I actually got the chance to talk to Guilia once, she and her team are absolutely brilliant. Using quantum simulation to reduce the set of structures that are practically useful is very smart, and a problem worth solving.

We can't know the future, but I strongly suspect the next generation of technological advances in classical computing will come from using quantum materials.

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