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  1. Dishsoap

    Other Short leaves of absence with the NSF GRFP?

    Hey fellas! I'm wondering if anyone here has experience taking a short (~1-2 month) leave of absence while being funded by the NSF GRFP. The longer version is that I'm eligible for a medical deferral, as I'm taking care of my mom while she is in home hospice, 800 miles away from my...
  2. Dishsoap

    B Why don't we take air pressure into account in calculations?

    I once was explained the answer to this question - something about both the air and the object being incompressible. However, for the life of me I cannot seem to reproduce the answer of why we ignore air pressure when doing basic calculations. If it matters, the particular system I'm interested...
  3. Dishsoap

    Density matrix of spin 1 system

    1. Homework Statement Consider an ensemble of spin 1 systems (a mixed state made of the spin 1 system). The density matrix is now a 3x3 matrix. How many independent parameters are needed to characterize the density matrix? What must we know in addition to Sx, Sy and Sz to characterize the...
  4. Dishsoap

    Particle movement in inhomogeneous magnetic field

    Homework Statement Show that for the case of a general inhomogeneous magnetic field, $$\dot{\vec{v}}=\frac{e}{2mc} (\vec{v} \times \vec{B} - \vec{B} \times {v})$$ The attempt at a solution I think I am oversimplifying things. I used that, for an electron in a magnetic field, m \frac{d...
  5. Dishsoap

    Adding 3 Spin 1s

    1. Homework Statement Consider eigenstates of the total angular momentum $$\vec{J}=\vec{J}_1+\vec{J}_2+\vec{J}_3$$ where all of the \vec{J}_i are for j=1 , and let J(J+1) be the eigenvalue of \vec{J}^2. a) What are the possible values of J? How many linearly independent states are there...
  6. Dishsoap

    Schools Intelligence necessary for graduate school?

    Hey all, This is a really embarrassing question, but one that I feel is necessary. I am not too intelligent, but feel as though for most of my life it could be made up for by work ethic. My senior year, when having an honest discussion with my advisors about my capability for grad school, I was...
  7. Dishsoap

    Schools Leaving graduate school for a semester?

    Hello everyone, I have a couple of questions. I'm an incoming graduate student starting in the fall, and working with a group at my future graduate school this summer. I do not want the pity of anyone in my department (especially as a new student) so I'm aware that the answers I get here may be...
  8. Dishsoap

    Physics Working in nanotech/biotech and interacting with patients?

    So, here's my incredibly naive question. I am entering graduate school in physics (not applied) and I have found a professor at my grad institution who does really fascinating work with nanotech, but is technically constrained under "experimental condensed matter". My question is this... I...
  9. Dishsoap

    Other Deferment/Reserve of NSF GRFP?

    Greetings, I am wondering if anyone has had experience deferring the NSF GRFP for only one year. I will be in graduate school, but I have a first-year fellowship so I would like my GRF to begin in my second year. I am slightly confused by the vocabulary in their FAQ - it seems like...
  10. Dishsoap

    Rotational & Kinetic Energy

    1. Homework Statement I am looking at part C. https://scontent-ord1-1.xx.fbcdn.net/hphotos-xal1/v/t34.0-12/12782422_10205657311624690_1648245885_n.jpg?oh=79b686a8b74392888fab0b070b86627d&oe=56F7E1E4 3. The Attempt at a Solution Here I am looking at part C. My initial thought is that they...
  11. Dishsoap

    Schools Seminar about applying to graduate school - tips?

    Here's a long shot... I go to a very small school with only ~8 graduates per year. Of those 8, 4 or 5 will apply to graduate school, and every year only 1 or so will be accepted. I'm preparing to approach the chair of the department to propose a one-hour seminar every year (or semester) to...
  12. Dishsoap

    Schools Dropping out of graduate school, re-admission?

    Greetings, So first of all, I am not in this situation. I am just wanting to know about a hypothetical scenario. Yesterday I heard that I've been admitted to an Ivy League and though I couldn't be more thrilled, I'm also terrified to the highest degree since I'm not sure that I have the...
  13. Dishsoap

    Telling a professor that other students are cheating

    I know that this is a common problem, but it's still quite frustrating. I spend hours upon hours on homework, and get a B. They spend half an hour, and get an A because they found the solutions online (I also have access, but do not use them). The exams come directly from the homework, so they...
  14. Dishsoap

    'Twas the Night Before Deadlines

    'Twas the night before deadlines when all through the house, not a student was stirring, being in the poorhouse. The applications were sent off to grad schools with care; now it was just time to worry - to see how they'd fare. Little undergrads were nestled all snug in their beds with a bottle...
  15. Dishsoap

    On a CV, where do you put applications for external funding?

    When applying to graduate school, I consider it significant that I'm applying for external fellowships (since, in theory, it means the grad school may not have to fund me). Presently on my CV, I have a section for "national awards", and there I list Blah blah blah award 1 blah blah blah award 2...
  16. Dishsoap

    How to thank a professor?

    I posted a topic like this quite awhile ago but the situation is a bit different now, as I'm near the end of undergrad so I won't be asking for LoRs anymore (so no risk of anything being considered bribery). There are two things that I'd like advice with 1) Thanking professors who wrote me...
  17. Dishsoap

    Sources for opinions on graduate application essays?

    Greetings all, Are there resources around to help with writing essays for graduate applications? I have asked a few professors around my department, but as we don't have a graduate program and most of them are young professors who have only recently left grad school themselves, most of them...
  18. Dishsoap

    The quantitative part of LoRs

    Greetings fellow PFers, and happy Thanksgiving, I learned recently about the quantitative portion required by many institutions when a letter-writer submits their letter for a student's graduate school application. Apparently it's typical for a professor/advisor to have to answer how their...
  19. Dishsoap

    Inhospitality during visit == future rejection?

    Greetings PFers, I'm sorry but you may be in for a bit of a rant :) I must admit I had a very frustrating experience today when visiting a prospective graduate school, and I'm wondering whether their disinterest in me means that I will be rejected and therefore would be better off not applying...
  20. Dishsoap

    Definition of "brief" for a personal statement?

    Here's the description of the personal statement for one university for which I'm applying for graduate school: Please upload a document briefly describing your past work in your proposed or allied fields of study, including non-course educational experiences, teaching, or other relevant...
  21. Dishsoap

    Theoretical... medical physics?

    For all of you who are thinking I'm a complete doofus... you're right :oldeyes: Unfortunately, I'm getting ready to apply for graduate school, and I'm still deciding which sub-field to apply to. On one hand, I would feel most at home doing research with practical applications, especially in...
  22. Dishsoap

    Schools Details about meeting with prof from prospective grad school

    Greetings, In a few days, I'll be in the same city as my #1 choice for graduate schools, and I thought maybe it would do me well to meet with one of the professors there to try and get an "in" when it comes to admissions. This is definitely one of those times where I wish I were an extrovert...
  23. Dishsoap

    Is it normal to feel depressed about leaving undergrad?

    Hey guys, I'm just wondering if it's normal to feel this way. "Depressed" isn't the right word (a bit overdramatic), but I keep seeing people around me with "senioritis" who can't wait to graduate and move on. My fellow students keep talking about how they want to fast-forward time until May...
  24. Dishsoap

    How much is it appropriate to bug a prof for a LoR?

    Greetings, I've just been having an issue recently and don't know how to approach it. I did an REU over the summer with a professor and I performed quite well. When I mentioned I might apply for the NSF GRFP this fall, the professor told me that if I wanted him to proofread my application essay...
  25. Dishsoap

    Choose "safety" research area, or more risky at a top school

    Greetings all, Just thought I'd hear you out on a decision I'm trying to make before applying to graduate school this fall, however going to keep it vague so it doesn't come around to bite me in the butt. I did an REU in physics sub-field A at a school which is #1 in the nation for sub-field...
  26. Dishsoap

    Non-intuitive velocity change for object with changing mass

    Greetings, fellow PFers, I have an interesting question which one of my professors raised, and I'm intrigued and would like to try it experimentally, though how to do so isn't clear to me. Suppose a cart with a constant force on it (say 1N), and with a velocity v(0)=-10 and a mass that changes...
  27. Dishsoap

    Schools What to do in the summer between undergrad and grad school?

    Greetings fellow PFers, I am a rising senior in undergrad (physics) and am preparing to apply for graduate school for next year. My undergrad institution does not have many graduates that go on to graduate school so I'm in a bit of a pickle as far as advice on this matter goes. I've read some...
  28. Dishsoap

    Schools A few questions about entering grad school

    Greetings PFers, I didn't see a need to spam the forum with three topics, but I have three questions about graduate school. First question: Do most graduate schools (physics) have a summer "bridging" program? Maybe to prepare for the prelims, or to take some supplementary classes or...
  29. Dishsoap

    Schools Grad School Admissions - comparative or absolute?

    Greetings all, I found some similar threads to this but none that answered my exact question. I am doing an REU at a school I would like to attend for graduate school, and some students there have said that in graduate school admissions, I am going to be judged relative to my peers from the...
  30. Dishsoap

    Schools Apply to grad school for AMO exp or theory?

    Greetings all, I'll be applying to grad school in the fall, and I am uncertain on how to proceed. By the time I graduate, I will have done research with an AMO theory group for four years and will have four publications. However, all of these publications are on numerical work/methods, not pure...
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