experimental physics

  1. T

    Programs Experimental physics, applied math, or both?

    Hey all, So I'm about to be a senior at a US school, and likely want to do grad school. I'm posting here because my interests are really sorta disparate and don't really share a theme. I like dynamics, stat mech, doing stuff on computers, and doing stuff with my hands.... Anyway, here's a...
  2. L

    Job Skills Theoretical vs Experimental Physics -- which is more glamorous?

    I am worried that I am passionate about physics and yearn for a career in physics(through theoretical physics), and by a career I mean a placement in a prestigious institute and then be part of leading physics, but would that require sacrificing my entire 20s and even 30s or can I can get all...
  3. JacobPhys

    Experimental Derivations of Pi in Physics

    Greetings I'm currently designing a lab-script intended for comprehension and use at an undergraduate level. I was extremely frustrated during my undergrad to be dealing with a plethora of uninspired and dull experiments so I decided to take a slightly unconventional (or extremely conventional...
  4. C

    I How could we detect negative mass matter?

    How could we detect negative mass matter? The only proposal i've ever heard of is that we could detect theres a cutoff frequency in the gravitational waves we receive, due to attenuation of those lower frequency waves by negative matter. Are there more experiments that could be conducted without...
  5. Pattarasak

    I How to create the operator of unknown beamsplitter

    Hello everyone, I'm undergraduate and my project is an experiment in the field of quantum optics. For now, I have an Unknown beamsplitter in my lab and I want to calculate the operator of this beamsplitter in matrix form (this BS is not perfected equipment because the reflected beam is not...
  6. B

    I All-fiber Mach-Zehnder interferometer

    Experimentalists, would you mind sharing your experience building a fiber-based Mach-Zehnder interferometer? What equipment did you use? How hard is it to achieve the same length of both arms with the fiber and couplers that you can buy online? And how sensitive is the resulting interferometer...
  7. D

    Is the mass of Liquid N2 and its rate of mass loss related?

    1. Homework Statement So I'm doing an experiment at uni which I have to find out the specific heat capacity of given small solid cylinder. We are given an insulated canister(a dewar flask) standing on a scale where we have to pour Liquid Nitrogen(hereafter will be refered as LN2) in. A cork...
  8. CFurner

    Torsional strength at high temperature

    High school student here I am designing an experiment to test the effect of temperature on the torque required to twist a peice of metal, and need some advice on where to start researching. What I need help with is A) finding a table of the torque required to twist steel when cold, and B)...
  9. DeathbyGreen

    Physics Documenting in Physics

    Is documentation and meticulous lab book keeping as big a part of theoretical physics as it is in experimental physics? From what I've seen, it seems like in experimental physics a big part is organizing files, noting where small changes have occurred, etc. Is it the same in theory? Does it vary...
  10. P

    I How are different potentials implemented experimentally?

    Hi. I'm wondering how different potentials, such as the Dirac-Delta potential, linear potential, quandratic potenial, etc., are implemented experimentally. I only understand how the Schrodinger equation is solved if these are the potentials and I'd like to have a better understanding of quantum...
  11. Abhirikshma

    Studying Engineering Physics or Physics?

    I have an inclination to be an experimentalist, in which discipline should I do my Bachelors in : Engineering Physics (B.Tech) or Physics (B.Sc) ? Thanks.
  12. E

    Courses Taking Statistics vs Pure Math for Experimental Physics

    Currently I am studying a double major in Math and Physics, hopefully leading towards experimental physics, however come next semester I will have to pick my math "specialisations" from two of applied math (mostly chaos and optimisation etc.), pure math(mostly abstract algebra and analysis) and...
  13. D

    I Difference between Zero-Field Cooling and Field Cooling

    I am currently doing a experimental project work on superconductors. I am supposed to study properties of FeTeSe. I am having trouble understanding the difference between Zero-Field Cooling and Field Cooling. In both cases, I am measuring magnetization with varying temperature (from lower to...
  14. L

    Aspiring Physics major, experimental physics focus, tips?

    Hey guys, I'm super duper new to getting involved in online communities based around one of my life pillars. Basically, I love science and everything pertaining to the advancement of the human race as a whole. If you've any advice whatsoever on your learning habits, practicing math, or anything...
  15. Enne

    Physics Is there current research going on in quantum mechanics?

    I have been recently introduced to QM and I am deeply interested in it. I have come to know that quantum cryptography, quantum computing, and quantum optics are the hot areas where research is going on. But I'm curious, is there theoretical research going on for understanding of the quantum...
  16. F

    Physics equations used in real world photonics problem?

    We typically solve idealized problems in physics coursework. How about when we deal with real world Photonics Industry Problems, what Physics equations we will be talking of here?
  17. D

    Theoretical vs Experimental Physics

    I was watching a sixty symbols video on Stephen Hawking: , and it got me thinking. Is there any practical value for theoretical physicists, if what they are doing is simply speculation not backed by any data? I understand observing a physical phenomena, and from understanding it predicting new...
  18. Riccardo Lardi

    The Aesthetics of impossible or unreal physical phenomena

    I know this may not be a typical question for the Physics board. I am a MA Design student working on a project to illustrate experiments on speculative/fictional physical events. My final work will consist of strongly simplified staged experiment lab situations and should touch on the imaginary...
  19. AlanKirby

    Best physics PhD for going into industry?

    Hi, I'm currently thinking about what area I want my physics PhD (which i want to do anyway) to be in. I'm interested in condensed matter physics, although i'm not stuck on that idea. (I'm an experimentalist by the way.) What area is best to do a physics PhD in, in order to have a good chance...
  20. AlanKirby

    Physics Experimental physicist and investment banking?

    Hi, I'm looking to do an experimental physics PhD (currently on an experimental Masters program), and I was wondering what my chances of getting into investment banking (quant) are. I am aware that theoretical physicists are primed for such a position, but what about an experimentalist? I can't...
  21. C

    How to calculate theoretical values for a ride?

    Hi, I've done a prac at school where we had to take an accelerometer onto a ride and obtain a graph in at duration. However, the data I've obtained (Acceleration in X, Y Z and resultant) is experimental data. I need to calculate theoretical data for certain segments of the ride. Assuming that I...
  22. Valerie Prowse

    Relating quadratic graphs & bouncing movement

    1. Homework Statement Hi everyone, I am doing a lab currently (and it looks like a few other people on here have had similar questions...) and I'm having trouble with one of the concepts. I had to drop a ball from a height and measure the movement with a motion sensor, which was graphed with...
  23. OdysseasTS

    Schools Beamline for schools, Greek Delegation

    Hey! So I found this ( http://home.web.cern.ch/about/updates/2014/11/beamline-schools-competition-2015-launches-today ) and my high school's physics teachers liked the concept! So I've created a team to participate in this years contest. We were thinking to do something relevant with antimatter...
  24. T

    Dissecting the photon (Again)

    When we dissect the photon we find an electric field and a magnetic field according to Maxwell. In order to determine the propagation mechanism of a single photon through the fabric of space-time, is there an experimental apparatus designed to determine which field may plow the path, in order...
  25. SalfordPhysics

    Simple error analysis

    1. Homework Statement A series of 5 measurements of Y are recorded with increasing X. (i.e. gradient has units Y/X) The error in measurement of Y is ±0.05 The error in measurement of X is ±0.005. How is the error in the gradient calculated? 2. Homework Equations - measurements Y | X...
  26. Logan Rudd

    Upper division physics lab -- Project ideas

    As an experimentalist, I am very excited to be taking my first upper division physics lab next semester! The course covers basic electronics (filters, diodes, transistors, op-amps, analog & digital circuits, D/A conversion, and LabView Programming, etc.) and measurement techniques with an...
  27. Mark Edawrds

    Experimental Physics: My Life, Career, Education?

    Hello Everyone. I'm pretty much a newb on the forum so please go easy :). My name is Mark, I'm from England, I'm in the late stages of my 15th age and I'm Home Educated. Now.. Where to start? I guess Primary School would be sufficient. Well, I started it as every other child does, however over...
  28. L

    Calculating Experimental Error

    1. Homework Statement I am writing a lab report for an X-ray diffraction. I have been attempting to come up with an equation for the error using formulas some people from college gave me and also some I found on wikipedia but I am quite sure I am doing it wrong. The only variable is the angle...
  29. F

    What is a broadband field?

    Is broadband field, a wave that contains a range of wavelengths? I can not find a good definition for it
  30. Christian0412

    Calculating Bandgaps Experimentally

    I've been doing a bit of reading on bandgaps of semiconductors and alloys of semiconductors. I was curious to know is the bandgap of a material, say Silicon, determined or calculated experimentally? How do scientists usually determine this in the lab?