tag:blogger.com,1999:blog-16612221.post4971591820953500694..comments2024-03-19T03:14:04.172-04:00Comments on Rabett Run: Quantum ComputingEliRabetthttp://www.blogger.com/profile/07957002964638398767noreply@blogger.comBlogger14125tag:blogger.com,1999:blog-16612221.post-78956879931892807992016-04-20T01:36:58.130-04:002016-04-20T01:36:58.130-04:00The Fermi Thermodynamics book is awesome!
If the...The Fermi Thermodynamics book is awesome! <br /><br />If there's a similarly simple, straightforward and self-contained book for stat mechs (or anything physics-wise really) I'd be glad to hear about it!Anonymoushttps://www.blogger.com/profile/00758722528292801835noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-56355918546997092722016-04-19T22:19:31.316-04:002016-04-19T22:19:31.316-04:00No, Russell, Drexler was about about mechanical na...No, Russell, Drexler was about about mechanical nanoassemblers, self assenbly of bismuth pico-islands has already been demonstrated. and it's the topological edge states that form and process the qubits. It's distincly non-abelian statistics that are going to freak you out. Try following these guys : <a href="http://arxiv.org/abs/1509.08134" rel="nofollow">http://arxiv.org/abs/1509.08134</a> and <a href="http://arxiv.org/abs/1504.01724" rel="nofollow">http://arxiv.org/abs/1504.01724</a><br /><br />Remember, I'm also the Group V guy, the electrohydride guy, and the atomene and elemene guy. Besides the bismuth iodide guy. You're the old guy.<br /><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-76984138840768368052016-04-19T21:43:40.768-04:002016-04-19T21:43:40.768-04:00" Physically implementing a very large and co..." Physically implementing a very large and complex quantum computer is going to require a combination of natural and directed atomic self assembly and active machining of the resulting structures to tailor them to a specific task. These are neural networks implemented in solid state and condensed matter systems. "<br /><br />Sounds like Drexel <i>pur sang</i>, which very yawn making.because above zero K quantum effects are very bad for molecular machines that get stuck in bad states one atom at a timeTHE CLIMATE WARShttps://www.blogger.com/profile/02578106673226403151noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-40927274654510560172016-04-19T20:55:11.785-04:002016-04-19T20:55:11.785-04:00Drexal was the nano-mechanical guy. It never worke...Drexal was the nano-mechanical guy. It never worked out, obviously. I'm the pico-quantum guy. It works fine as long as you allow for the BCS-BEC crossover, geometry, toppology and duality. It's gonna be fun, especially watching all the old fuddy duddies like yourself freak out.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-22680245775342418102016-04-19T16:09:53.869-04:002016-04-19T16:09:53.869-04:00OpenID 8c7793aa-15b2-11e5-898a-67ca934bd1df was...OpenID 8c7793aa-15b2-11e5-898a-67ca934bd1df was doing <i>much</i> better than usual on QC, until he went all Drexel and tried to turn it into a nanoclock.THE CLIMATE WARShttps://www.blogger.com/profile/02578106673226403151noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-11245855407715402122016-04-18T06:34:35.170-04:002016-04-18T06:34:35.170-04:00David Lewis,
there are well understood principles ...David Lewis,<br />there are well understood principles of quantum computation, and numerous well-known quantum algorithms following those principles (for example, Shor's algorithm for factorisation: https://en.wikipedia.org/wiki/Shor%27s_algorithm). If and when quantum computing with useful numbers of qubits becomes a practical reality, many more algorithms will be developed. Just because *you've* never heard anyone explain it, doesn't mean that it's all woo.Nick Barneshttps://www.blogger.com/profile/00057838251997644583noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-37300193831049616672016-04-17T13:38:02.564-04:002016-04-17T13:38:02.564-04:00Implementing object oriented concepts is not parti...Implementing object oriented concepts is not particularly difficult in Forth, the reason that it hasn't caught on for really big programs is that one requires millions of programmers that can operate as a team that can actually read and understand the code. The beauty of Forth is that is allows the nearly instantaneously (microseconds) recompilation of the entire operating system and programming language from source code in a fashion the is nearly identical to how life does it from DNA, and can be understood and implemented by a single individual. I guess higher order life nowadays usually requires two individuals. The biggest problem with Forth is the multitude of ways it can be implemented at the assembler and nucleus level.<br /><br />So when it came time for me to learn how to program, it was vital that I did it in an environment amenable to scientific study and with scientific relevance. Quantum computing will be required simply to beat the 5 nm macroscopic barrier in semiconductor donor acceptor physics. Consider a quantum computer more as a quantum simulator, where it is easier to just simulate the quantum physics using quantum physics than it is to simulate it with a deterministic van Neumann machine. Physically implementing a very large and complex quantum computer is going to require a combination of natural and directed atomic self assembly and active machining of the resulting structures to tailor them to a specific task. These are neural networks implemented in solid state and condensed matter systems. Programming them may be very will equivalent to constructing them.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-40723799617217882342016-04-17T13:33:24.285-04:002016-04-17T13:33:24.285-04:00My nephew is working on a PhD in quantum computing...My nephew is working on a PhD in quantum computing. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-46422481475976628112016-04-17T11:47:07.725-04:002016-04-17T11:47:07.725-04:00Eli took QM from a student of Schwinger and stands...Eli took QM from a student of Schwinger and stands by his characterization. Both were brilliant to be sure, but in very different ways. People underestimate style in science. Learned thermo from Fermi's simple book and adopted that style rather than grinding.<br /><br />An amusing simile is the difference between programming in LabView or assembler.EliRabetthttps://www.blogger.com/profile/07957002964638398767noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-78009572547509866222016-04-17T10:06:09.725-04:002016-04-17T10:06:09.725-04:00I don't buy your characterization of Feynman v...I don't buy your characterization of Feynman vs Schwinger. Both were visionaries who were formidable calculators. Feynman was far more charismatic, though.CapitalistImperialistPighttps://www.blogger.com/profile/17523405806602731435noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-55501785454494835002016-04-17T09:59:37.697-04:002016-04-17T09:59:37.697-04:00I think quantum computing will be a revolution in ...I think quantum computing will be a revolution in programming - but no more so than the move to object-oriented programming. The real revolution will be in the speed of obtaining results.<br /><br /><a href="http://www.dwavesys.com/software" rel="nofollow">D-Wave provides some insights into their quantum programming efforts.></a>Kevin O'Neillhttps://www.blogger.com/profile/06692943768484857724noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-71857855099503497872016-04-17T07:29:49.284-04:002016-04-17T07:29:49.284-04:00I've always been a grinder. (Maybe that's...I've always been a grinder. (Maybe that's why I had such a hard time with Quantum Mechanics and Path Integrals?)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-12796760276248001492016-04-17T02:55:38.840-04:002016-04-17T02:55:38.840-04:00David,
If you use gravity to aid you in your daily...David,<br />If you use gravity to aid you in your daily routine, then you should be able to tell us how gravity works. <br /><br /><br /><br />Aaronhttps://www.blogger.com/profile/05150805906414546377noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-72429020354316301692016-04-17T00:14:54.304-04:002016-04-17T00:14:54.304-04:00I've never heard anyone explain how a quantum ...I've never heard anyone explain how a quantum computer would do an actual computation. <br /><br />Trudeau says <br /><br /><i>"What quantum states allow for is much more complex information to be encoded into a single bit. Regular computer bit is either a one or a zero, on or off. A quantum state could be much more complex than that, because, as we know, things could be both particle and wave at the same time, and the uncertainty around quantum states allows us to encode more information into a much smaller information. So that's what's exciting about quantum computing,"</i><br /><br />All I would ever want to do is store a 1 into one of these quantum bits until I wanted it back. The last thing I want to hear about when programming is uncertainty. <br /><br />Didn't Feynman say "I think I can safely say that nobody understands quantum mechanics"? <br /><br />The only thing I understand about quantum mechanics is they cooked it up to explain experimental observations that made no sense, and the theory proved to be good enough to predict even more bizarre things that turned out to be observable. <br /><br />If someone is going to make a computer exploiting these properties that make no sense, I think they should be able to explain how it could perform an operation.david lewishttps://www.blogger.com/profile/01057820755734099375noreply@blogger.com