Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Atomtronics & Superfluid Circuits

  1. Jan 11, 2013 #1
    An atomic SQUID has been created from a superfluid circuit:

    http://jqi.umd.edu/news/first-controllable-atom-squid

    What are the applications of this?

    If you could have a superfluid coil, then could it generate some kind of field, like the way an electric coil does?

    Given that the rotation of massive bodies generates frame-dragging, then does the rotation or circular movement of even small amounts of matter also do this on a small scale?

    Could frame-dragging effects somehow be channeled through a coil, analogous to the way that electromagnetic fields are combined through a helical coil?
     
  2. jcsd
  3. Jan 11, 2013 #2

    ZapperZ

    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor
    2016 Award

    You really shouldn't go off on a tangent like this, whereby you are trying to extrapolate something you barely know into a rather ridiculous situation.

    Please note that in a SQUID, it is the phase difference in wavefunction that is predominately responsible for the effect. We don't have "rotation or circular movement" here in the real sense.

    Zz.
     
  4. Jan 11, 2013 #3
    Ahh, so this is quantum fuzziness again, rather than real movement.

    But still - what are the applications for it?

    I remember an experiment done by Martin Tajmar in 2006 on "gravitomagnetism". He later did a related experiment using a superfluid:

    http://en.wikipedia.org/wiki/Martin_Tajmar

    http://arxiv.org/ftp/arxiv/papers/0911/0911.1033.pdf

    Does anyone have more information on this? What are the implications of it?
     
    Last edited: Jan 11, 2013
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Atomtronics & Superfluid Circuits
  1. Superfluidity and BEC (Replies: 17)

Loading...