Recent content by quantumlaser

  1. Q

    Is a 390 on the GRE Verbal Acceptable for Math Grad Programs?

    It probably works for you when your applying to grad school, and maybe for post-doc stage. Profs want to be able to say they have good diversity when applying for grants. Later on when your looking for a permanent job though, its tougher to break the "old-boys club" mentality of your potential...
  2. Q

    Need Immediate Help with Journal Figure Submission

    I'm in the middle of submitting a paper to the Journal of Applied Physics. When my figures are converted to pdf, they come out rotated by 90 degrees from what their orientation in the source fiel! Do I need to fix this? If so how? Please respond ASAP!
  3. Q

    TA or RA-ship for theoretical physics

    Sometimes it would be better overall for students to have RA's at the beginning of their graduate years, and TA's at the end. The reason is that, for grad students in their 1st or second year, a full schedule of classes plus teaching plus research can be a heavy burden. Even though in the end...
  4. Q

    Industrial R&D vs academic research

    Don't be such a condescending a--hole. There are many smart people in industry, I would say that most (close to all, actually) are impassioned by their work, otherwise they wouldn't have gone through 5-7 years of graduate school to become qualified for their positions. And their research is...
  5. Q

    How is the Electron-Phonon Interaction Hamiltonian derived?

    I'm trying to study electron-lattice interaction in multiple quantum well structures. Many papers start with an electron-phonon Hamiltonian, but I'm not sure how to derive it. I'm a graduate student in physics, but my background in solid state is fairly weak since I recently switched fields.
  6. Q

    How is the Electron-Phonon Interaction Hamiltonian derived?

    Does anyone have a good derivation of the Electron-Phonon Interaction Hamiltonian? I've found a few in various books (specifically B. Ridley and others that cite him) and on the internet, but all of them seem to skip some non-trivial steps or introduce quantities that I've never encountered...
  7. Q

    Quantum Mechanics + Engineering = ?

    Just to follow up with Manchot's post, if your interested check out this research group's work: http://cqd.eecs.northwestern.edu/ Just navigate to the research page and check out what they are doing.
  8. Q

    Schools Graduate school admissions and wall street layoffs

    I can see both arguments. I have a hard time believing that recent grads on the fast track to bags of money would abandon that road for the pittance of grad school. Then again, where else are they going to go? Seems inevitable that at least some of them would end up in grad school. Also...
  9. Q

    Navigating Math, Engineering and Career Options

    I believe a good many engineering jobs are being outsourced, but you still can't go wrong with those degrees in terms of job security when compared to other degrees. If I were you I would sample a few upper level math courses before totally bailing on EE. I've known some physics and...
  10. Q

    Looking for good self study QM book

    I meant that Griffiths was almost useless for studying for QM quals. There's a ton of stuff left only in problems (or not even covered) that is in a standard undergrad QM book, and trying to do every relevant problem just based on the material he presents would be a massively time-consuming...
  11. Q

    Looking for good self study QM book

    I like Griffiths as an introductory book, but my opinion of it changed a lot when I had to study for my QM quals. It is not comprehensive enough by any means. Without the solution manuel it is almost useless. I used Richard Liboff's book to study for the qual. It's more comprehensive, but I...
  12. Q

    Ranking of Hours & Effort Needed for Academic Occupations: Undergrad-Prof

    I don't know where you get this notion that undergraduates work harder than everyone else. In addition to attending class (which I don't count as work) I spent probably about 4-5 hours a day doing actual solid work as an undergrad. As a grad student its more like 8-10 on average for me. And I...
  13. Q

    Is Pursuing Physics and Math a Rational Choice?

    First off, I don't think that the job prospects in the life sciences are better than math/physics (in fact I think they are pretty bad outside being a doctor and there are precious few life science people that aspire to be a doctor that actually make it). As for the rest, you have to ask...
  14. Q

    Schrodinger Equation and Energy Quantization

    By "quantum well" I mean a well potential, i.e square wells, spherical wells, etc... I just thought that there might be something deeper in eigenvalue quantization than just boundary conditions. I guess I'm just looking for something deeper where there is nothing. My original impetus for...
  15. Q

    Schrodinger Equation and Energy Quantization

    I'm a bit embarrased to ask this (thats why I'm asking here and not asking one of my professors), as a grad student in Physics I've had a good deal of quantum mechanics, but one thing I haven't fully understood yet is the mechanism in the Schrodinger Equation that forces eigenvalue quantization...
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