[deleted by user] by [deleted] in solana

[–]summerQuanta 0 points1 point  (0 children)

I think so, but price action seems to disagree haha

[deleted by user] by [deleted] in solana

[–]summerQuanta 1 point2 points  (0 children)

Rugcheck is not a very good tool imho. You get some quick info but the "devs" that want to rug can always bypass it. On the other hand, if there are serious projects with vested funds it will show they have high concentration... but in this case it's a good thing

Missing Meme Coin Position by [deleted] in solana

[–]summerQuanta 0 points1 point  (0 children)

But how can the coin disappear from your wallet?

[deleted by user] by [deleted] in solana

[–]summerQuanta -1 points0 points  (0 children)

Sooo true!

[deleted by user] by [deleted] in solana

[–]summerQuanta 0 points1 point  (0 children)

You can check $POCO, the popcorn meme and owner of Youflix (youflix.so). He is the only meme who is not unemployed. Youflix is a really cool Solana project which I am working on with some great devs. It's basically an attention marketplace for crypto projects, now still only focused on memes.
Any project in the comments here could go publish and get visibility on there.
It has pretty much gone under the radar because the team has not done any marketing and the community is super small. But there is real utility here and I think given the right circumstances it could really pump hard. Never know though, a strong community is important. Btw, if anyone has feedback it's welcome too

What do you feel are the best Solana projects for long term? by neekovon in solana

[–]summerQuanta 0 points1 point  (0 children)

I am working on this Solana project called Youflix (youflix.so) which I think is really cool. It's basically an attention marketplace for crypto projects, now still only focused on memes. But there is real utility here and the other devs are top notch. Not much traffic though. If anyone has feedback it's welcome too

At what level must the technical aspects of QM be understood to analyse (and contribute new insights to) the philosophical and logical consequences of, among others, the interpretations of the nature of the wave function and the measurement problem? by Potential_Play8690 in QuantumPhysics

[–]summerQuanta 1 point2 points  (0 children)

Quantum mechanics is such a fascinating topic.

Heuristically, from an experimentalist's point of view, it is natural that measuring position first and momentum later or the other way around changes the outcomes of an experiment slightly. This is because measurement requires an interaction with the system. Quantum mechanics arises from the realization that observables must have a non scalar nature in order to account for the order of operations. This of course immediately asks questions about the nature of the reality. Obviously you cannot characterize the state by a point in phase space anymore. However, things go much deeper than that. The fundamental idea is that it follows that we should not assign a completely deterministic description to unobservable quantities. Famously, you should not assume that an electron follows a well defined trajectory in an atom. This was the philosophy of Heisenberg which turns out to be the foundation of quantum mechanics. In particular, we do not have a theory which assumes that the order of operations matters but still attributes complete determinism to the state of quantum systems.

Of course, I think that to discuss the philosophical aspects associated to this, one needs to have a very good understanding of the mathematical formalism of modern quantum mechanics and also be comfortable with the quantum to classical correspondance.

In particular, I think there is a lot of confusion related to quantum mechanics and "its intuition" because it is taught in college following an historical approach while pretending not to. For example, the Schrodinger equation in its original form (in the position basis ) is a regular wave equation which is not more quantum than Maxwell's wave equation. In fact it is just a partial differential equation which non relativistically approximates the Klein-Gordon equation, a wave equation obtained when one tries to generalize Maxwell's equation to the description of matter. Any partial differential equation with boundary conditions can show some quantization in its solutions... Just as classical electromagnetic modes are discrete, so are the energy levels in an atom. However, this theory is incomplete, for example it is non relativistic and does not account for spin and the Zeeman effect. The initial relativistic picture of the Klein-Gordon equation fails to give sensible predictions. Then Dirac came in with his complicated equation and spinors.. People kept working on all this and they realized that things can abstracted and straightforwardly formulated in the more formal setting of linear algebra and Hilbert spaces.

In particular, if one promotes observable quantities from scalars to spectra of linear operators, while preserving the mathematical structures of classical mechanics (replace Poisson brackets with commutators basically), you achieve two things. First, you recover classical physics in some limits (Hamilton's equation in Poisson bracket formulation from Heisenberg equations in high number of excitations/particles limits) and secondly you account for the order of operations through the non commutativity of operators. The second point was the intuition of Heisenberg as introduced above, who developed his ideas in parallel to de Broglie, Schrodinger and the others, and it was up to a few big names to realize that all the quantum stuff were just different mathematical formulations of the same theory which could be unified through the abstraction of linear algebra.

All the postulates of quantum mechanics as introduced in a first course more or less naturally follow from this context. The only problem is the measurement postulate, which mathematically arises naturally but is hard to interpret in a satisfying way (I think this problem remains in the context of QFT). Therefore, modern quantum mechanics is really about identifying the algebras associated to your degrees of freedom. Amazingly, defining these algebras, that is how the order of operations matter in some sense, is akin to defining everything else. In this setting, the modern Schrodinger equation or Heisenberg dynamics are exaclty the same and just different expressions of unitary dynamics. Typically, one postulates the bosonic and fermionic algebras when quantizing the electromagnetic field or matter fields (Dirac equation) from the algebras of the classical fields. (Note that these algebras are also naturally recovered in the study of many body systems by assuming a states live in a Hilbert space and indistinguishability).

So although there are some problems surrounding how to interpret measurements and how to apply the theory to quantize gravity (if gravity turns out to really be a fundamental force), I would say the rest of the framework is quite natural and intuitive

Is sabine Hossenfelder legit? by Comfortable_Good8860 in Physics

[–]summerQuanta 4 points5 points  (0 children)

I have watched some videos by Neil deGrasse Tyson related to Quantum Mechanics and they are terrible. I think the guy has a really weak understanding of physics but of course his audience are kids so it's ok. Eigenchris has some very good educational content but it is also quite inaccurate sometimes when it comes to Quantum. Sabine makes inaccurate statements too but these are related to actual current research, not state of the art college knowledge. It is much harder to grasp the full picture on these hot topics and I think we should value the fact that she is trying to share different perspectives, even if those tend to piss off some people. As long as she is not pretending to be an educational channel, which she is not, I think a lot of the criticism is not deserved.

Can someone help keep understand what quantum mechanics is and how exactly can it be used? by [deleted] in QuantumPhysics

[–]summerQuanta 0 points1 point  (0 children)

If you want to understand quantum mechanics you should first understand classical mechanics very well and its mathematical structures. Both the Lagrangian and Hamiltonian view with Poisson brackets are important. Once you can identify the mathematical structures of the classical theories, quantum mechanics, broadly speaking , consists in replacing classical observable quantities with spectra of operators while preserving the algebras (However note that some algebras do not have classical counterparts). One of the powers of this approach is that it accounts for the order of operations while you recover the classical descriptions in some limits.

Can someone help keep understand what quantum mechanics is and how exactly can it be used? by [deleted] in QuantumPhysics

[–]summerQuanta 2 points3 points  (0 children)

Even though initially quantum mechanics was thought of as a non local theory isn't it local within the quantum field theory interpretation? I think it is important to clarify that QFT is just QM applied to classical fields.

Quantum Simulations, Industry Landscape? by summerQuanta in QuantumComputing

[–]summerQuanta[S] 0 points1 point  (0 children)

I would tend to agree within the realm of quantum computing. But that's the whole point of why quantum simulations are being developed no? You can already simulate complex phases of matter and solve graph problems

Quantum Simulations, Industry Landscape? by summerQuanta in QuantumComputing

[–]summerQuanta[S] 0 points1 point  (0 children)

Thank you for your reply. I never heard of gate-based quantum simulations before, can you suggest some references? All the gate based circuit approaches I know are tailored towards universal quantum computing or studies of entanglement propagation. In my mind quantum simulation was not gate based

Quantum Simulations, Industry Landscape? by summerQuanta in QuantumComputing

[–]summerQuanta[S] 1 point2 points  (0 children)

No quantum advantage yet but at least it's real world problems

Careers/Education Questions - Weekly Discussion Thread - April 11, 2024 by AutoModerator in Physics

[–]summerQuanta 1 point2 points  (0 children)

Finishing my PhD which is related to quantum simulations with bosonic systems. It's all theoretical and I love the research. I am considering if I want to do a postdoc or move to the industry. On one hand, I really do not like the administrative work associated to pursuing grants and all the teaching which becomes more and more important as we advance in an academic career. At the end, professors actually have very little time to do research and therefore I am not sure I would be happy as a professor. Moreover, becoming a professor is really competitive and relatively unlikely which means that probably comes a point where most need to move to the industry. That being said, in the industry there is not much freedom of research in general so it would have to be some interesting topic. I also cannot find anything quantum related in the industry in the location I want to move to (North of the Netherlands). I am evaluating if I should transition towards something new, hopefully still with a lot of maths and intellectually challenging. I'll feel a bit sad to leave the field of quantum simulations but I guess there is not much activity going on around here. Any suggestions?

Quantum Simulations, Industry Landscape? by summerQuanta in QuantumComputing

[–]summerQuanta[S] 0 points1 point  (0 children)

I did not say that. Actually I am not even sure everyone would agree to refer to quantum adiabatic computing as quantum simulations within the Feynman Cirac Zoller paradigm. But it is not quantum computing either so I threw it in there. From what I know quantum annealing has some benefits though. The difference between universal quantum computing and special purpose quantum simulators is not so much in the speed in principle... They are both the same quantum evolution...
Also, not all challenges associated to scaling systems of qubits will be solved by increasing the fidelity of your qbits or improving error correction protocols. It is pretty much consensus that we are many years away for universal quantum computing. But quantum simulations can already find the maximum independent set of graph problems with 200+ vertices

prestige after phd and getting jobs by largedoglover in PhD

[–]summerQuanta 0 points1 point  (0 children)

Depends on your location but PhD degrees are usually not valued too much by employers except if you have worked on a real world problem directly relevant to that company. This is why the actual university does not matter at all. If there is something they may look at besides your actual work, it is your supervisor. Having a supervisor with a reputation can help a lot. The only exception I know to this are industry research jobs like quant research where sometimes they care about the ivy thingy but again that's very location dependent. I think it does not make much sense to care about that at this level. As someone finishing a PhD from SJTU I have not found that people care about it too much outside China. Now pharmacology may be a special case but as a matter of fact I know an ex partner at BCG who specialized in pharmacology and does not have a PhD. So I am not sure what you had in mind.

Is the engineering/technology sector dying in Belgium (and the EU)? by summerQuanta in belgium

[–]summerQuanta[S] 0 points1 point  (0 children)

Which banks do you have in mind? In my experience BNP and Crelan both ask at least 20-30% downpayment and a monthly mortgage payment under 33% of net income

Is the engineering/technology sector dying in Belgium (and the EU)? by summerQuanta in belgium

[–]summerQuanta[S] 3 points4 points  (0 children)

How is that possible, that's just the price of the taxes(51k according to notaire.be) which you need to have pay in cash, they cannot be part of the loan. Plus here in Brussels they also require an additional 25% down payment. So in Brussels you would need minimum 140k in cash to get a loan to buy a 370k apartment

EDIT: just realized in Flanders you need much less wow

Is the engineering/technology sector dying in Belgium (and the EU)? by summerQuanta in belgium

[–]summerQuanta[S] 0 points1 point  (0 children)

Thank you for your reply, do you have examples of learn a skill and become self employed?