Recent content by Degeneration

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    Optics issue with focusing beam

    Right. I'm using the lens to magnify the image so that I get the desired size within a given length, mainly because I don't have too much room on my bench. The beam initially starts out as a gaussian with a 3mm diameter, send it through one lens, have a gap, and then send it through an axicon to...
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    Optics issue with focusing beam

    Thanks, this is helpful. Would a double convex lens produce less aberrations than a plano convex (assuming they're identical in their focusing power). Would the general lensmakers equation be a better choice?
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    Optics issue with focusing beam

    Hello all, I've got an optics problem that I'm having some difficulty with, where I want to send a beam through a converging lens to obtain a certain image size. My incident profile is that of a ring with a certain thickness and use I use this as my object. I want an image of a certain size, so...
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    Limit as distinguishable->indistinguishable

    You say they do not interact the same because they are not in the same place at the same time, but if they have the same spatial wavefunctions and different spins, won't they still be in the same place at the same time? Do we still need to consider a superposition of the two (instead of...
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    L'hopital's case proof, infinite limit

    Oh man, okay. I will update if I get this
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    L'hopital's case proof, infinite limit

    Actually, I think I can use |f'(x)/g'(x)| > 1/ \epsilon, but that still doesn't seem too much more helpful
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    L'hopital's case proof, infinite limit

    Right, sorry though I forgot to mention this is strictly differentiation. No Riemann sums or integrals are allowed. I understand how that would make it significantly easier though
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    L'hopital's case proof, infinite limit

    Homework Statement a in R is finite, f,g are differentiable on R \lim_{\substack{x\rightarrow a}} f(x)=\infty \lim_{\substack{x\rightarrow a}} g(x)=\infty g(x), g'(x) not equal to zero \lim_{\substack{x\rightarrow a}} f'(x)/g'(x)=\infty Show \lim_{\substack{x\rightarrow a}}...
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    Buy Dee Electromagnets Online | Low Prices

    Where can I buy some dees (aside from acquiring them at a university)?
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    Need help building a Lawrence cyclotron?

    Anyone know how to do it? I do not know where to find dee electromagnets, nor do I even have the complete design of his system.
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    How can I make a particle accelerator?

    Warren, do you know how to make one? I'm trying to make a cyclotron similar to the one made by Lawrence in 1929 but I do not have the design specifics.
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    PBS Entanglement: Implications & Uses

    I've heard that if two particles are entangled, and one of them is run through a polarizing beam splitter, the beam can be recreated and the entanglement continues. What are the implications of this? Is there actually any use? Thanks
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    Changing the spin of a Quantum particle

    So can this not allow FTL communication? Because if left polarization means on (1) and right means off (0), can't you communicate in binary?
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    Continuing entanglement after first measurement

    -------------------------------------------------------------------------------- Ok so if two particles are entangled and I choose to measure particle A, then the entanglement is finished. But what if I measure both A and B with photons of the exact same energy; is there now a new...
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    Quantum Entanglement: Einstein's "Spooky Action" Explained

    How does causality play into this? I've heard it solves entanglement somehow
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