Physicist working on neutral atom quantum computing at Atom Computing. Ex-condensed matter physics postdoc at MIT. PhD in superconducting quantum computing from Yale. Used to do systems/kernel programming at Apple, Palm, Internet Systems Consortium, Scyld, and Lawrence Livermore Nat'l Lab. Contributor to Valgrind. Opinions expressed are solely my own and do not express the views or opinions of my employer.
I have a 556 and 547 that I still use. They work fine. They slowed down a bit from the resistors drifting but whatever. Still very fun to use and they heat the workspace in the winter.
There might be some argument that brews in this thread and I just want to say that it's nearly impossible to debate someone into believing they should care about people they don't know.
The only things that are weird in math are things that would not be expected after understanding the definitions. A lot of the early hurdles in mathematics are just learning and gaining comfort with the fact that the object under scrutiny is nothing more than what it's defined to be.
I’m not sure what you mean — transmons are lithographically defined on a chip. They’re fixed in place. Usually they’re coupled/entangled using a tunable coupler
I get the sense that the Scandinavian minimalism thing has worn too heavy on everyone and now we're taking a collective step back to explore things that are a bit more fun and maximalist. So yeah, maybe a little more skeuomorphism but done differently? That was a fun era!
Fairness is the word people use but what I think they’re alluding to is adherence to some natural order of things, and that this itself is the measure of a healthy society. That might be the divine right of kings or it may be the order established by the invisible hand of the market. These arguments never go anywhere because it’s just an axiomatically different moral framework.
This is such an old moral argument. Do you think society should protect people from the nearly unlimited downside inherent to having bugs in human behavior exploited or do you think that doing this is wrong and that it's in fact immoral to stop people from being punished by their own bad decisions, because that's what they deserve.
The place where this perspective is most prevalent is socialized healthcare. It's either slippery slope evil socialism, or it's too impractical to ever be implemented here because America is too big and complicated, or it's never gonna happen due to regulatory capture.
There's plenty of valid criticisms of the quantum computing industry but the idea that quantum mechanics is whole-cloth invalid is nonsense. You can absolutely verify a quantum state through tomography
Pessimistically I think it's most comparable to fusion. Theoretically possible but very difficult. I'm biased because I'm in the industry, but nothing has cropped up that I've seen that requires a miracle.
The idea is to implement something like the quantum equivalent of a Turing machine. What one universal quantum computer can do, another can. So yeah. However, connectivity and gate/measurement time will set some aspects of the performance but not the asymptotics.
You should learn calculus and differential equations, and then some probability. At that point you should learn a bit of measure theory and then stochastic calculus builds on all that. Stochastic calculus is basically just weird calculus. It has an additional differential dW and the chain rule is more complex (for the Ito formulation. Stratonovich is different but not by much)
From there you study the behavior of various forms of stochastic differential equations that are intended to model certain situations. Then, you make this cool connection between stochastic differential equations and ordinary differential equations that describe the evolution of the corresponding probability distributions. There’s lots of other stuff but those are the hits.
I don't think the MAGA crowd is prepared for the quality of goods produced by a country at the early stages of relearning manufacturing. American made, for at least 5 years, will be synonymous with poor quality, just has made in ___ has been synonymous with poor quality for any country at the early stages of industrialization.
You don't need to try and imagine why they're doing it, because Trump has said why for the last 30 years. He sees our trade deficit as as "the US being taken advantage of."
It doesn't really matter if they can or can't do the work. If enough execs are convinced AI can replace the workers, they will replace the workers, and management will have moved onto other things before they suffer consequences.
you can use an anti-charging layer for e-beam litho, that's not such a big deal. E-beam litho is just very slow. There are lithography techniques that use synchrotron sources like LIGA.
prestige among who? As a physicist, I couldn't care less what my school's prestige was amongst those outside of the physics community. Maybe you want to go work for a hedge fund, where Berkeley is also respected. Maybe it's worse to McKinsey? I don't know. Know your audience.
Meet with Dan Stamper-Kurn, Jon Simon, and whoever else at length, go get coffee with their grad students without any postdocs or the PI present and ask them to tell you the shitty bits, and make your pick. Don't worry about the school -- it's not important. The advisor is. Also, pick by what you won't put up with. The bad bits add up differently than the good bits.
people who "don't already buy into the premise" make up such a tiny portion of the audience, that it just isn't worth writing for them. Companies paying their fair share of taxes is wildly popular, and I don't think it's worth getting bogged down writing for this vanishingly small population.
I’ve seen quite a few. His pantorouter series is very good and I have a lot of respect for doing this sort of thing without CNC. His most recent series building a milling machine is asinine, but fun to watch.
Yeah Matthias is fun to watch because he does a lot of hack stuff with plywood that works better than you'd expect. He does a lot of stuff with a lot of confidence, a lot of it dangerous. He's a smart guy for sure, so for what the setups are, the data is interesting. However, the problem is that people extrapolate beyond the setup. It's rare that the way he does something is a _good_ way to do something. He doesn't demonstrate himself to be an expert in much beyond software and hacking stuff together with wood, and I don't think he claims much beyond that.