Recent content by rigetFrog

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    Derivation of LLG equation in polar coordinates

    these papers works out theory a little more explicitly, but they are over kill. (One is for a coupled system) http://iopscience.iop.org/0034-4885/61/7/001/pdf/0034-4885_61_7_001.pdf http://journals.aps.org/prb/pdf/10.1103/PhysRevB.74.064409
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    Particle Spin - how to cause change to direction

    There are various ways to create a controlled spin flip, depending on the system. The first way is just to wack your system with a giant magnetic field In ferromagnetic metals, you can use microwaves In direct bandgap semiconductors you can use microwaves or circularly polarized light For...
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    Good Reference Books for Mechanics, Nuclear, Optics & More

    I'm looking to reduce the amount of books I have, but I'd like to get a few references references books to replace them. I'd like a set of books that encompasses everything from mechanics, nuclear, optics, and solid state, to ,basic lab electronics, astronomy, quantum, and their mathematical...
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    Maintaining Legacy Code: Pros, Cons & Analysis

    I've been maintaining and updating some legacy code for a while at my job. These Dilberts came up the other day http://www.dilbert.com/2014-08-11/ http://www.dilbert.com/2014-08-12/ I see people disparage others work/code all the time, and it frustrates me. I give people credit /...
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    Engineering How Did You Get Where You Are Scientists and Engineers? I Need Help

    @ statGuy200: I would like to hear that argument for the "last thing the word needs". @OP. I went for science. My work is mostly enjoyable except for the politics and cut throatiness. My buddies that went for money are now entrepreneurs and can afford to do whatever they want.
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    Engineering How Did You Get Where You Are Scientists and Engineers? I Need Help

    Engineers not in management cap out below 150k. Finance, consulting, people can get to just below 300k, but they also can get ridiculous bonuses. From my age group in grad school, none of us are tenured or even tenure track. It's split up between researchers in science, quants on wall st, and...
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    Engineering How Did You Get Where You Are Scientists and Engineers? I Need Help

    You sound a lot like me at that age... If I could go back in time, I'd tell myself "Do what every makes the most money." You may be ridiculously bright (perfect SAT's and stuff), but all my classmates in grad school were like that. Every engineering and physics field is ridiculously...
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    What are the challenges and experiences of publishing in physics?

    I just saw this http://phdcomics.com/comics.php and I wanted to hear about other peoples experiences in publishing in physics, and compare them to my own experiences. What role do your students, advisers, and collaborators play? How do you navigate disagreement with them? When does...
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    Computational Physicst prospects?

    I think computational physics was once a good option. But the sectors that would be hiring you can also choose from candidates who have been trained to develop code for sector specific applications. For example, there's now a branch call financial engineering and computational finance. The...
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    Tenure track position at small University or Postdoc at a top one

    Depends on the politics of each situation. A prestigious postodoc with tricky politics to maneuver won't advance your career. Despite my lack of experience in professoring, I think it's a better opportunity than postdocking.
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    Physics Education in South America

    A number of my professors and colleagues were from Argentina and Brazil. They are ridiculously well trained, well published, and friendly people.
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    Linear regression, sources for this wikipedia link

    I really like the derivations here http://en.wikipedia.org/wiki/Proofs_involving_ordinary_least_squares Could some one recommend a good book for them. I'm tired of googling these equations every time I want to use them. Thanks!
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    Conductor band overlap definition question

    I've seen the phrase "overlapping conduction and valence band", but I think it's a historical appendage that's not useful anymore. See if you can find the full k-dependent electronic structure of various semiconductors and metals and compare them. The solution to your question should become...
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    2D Density of States Energy Independent

    this is for a free electron. Not necessarily for every system. I don't have a physical intuitive explanation. It just arises from the math of the system.
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    Experiences with Cherry-Picked Data: Three "Three Wise Monkeys

    I saw this group many years back that I suspect was cherry picking their data. The students would purposefully get as little data as possible. Enough to compare it to a model, but not enough to to negate the head researchers claims. When I would go and do the experiment more thoroughly...
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