University of Birmingham > Talks@bham > Astrophysics Seminars > The Glasgow Speed Meter proof-of-principle experiment

The Glasgow Speed Meter proof-of-principle experiment

Add to your list(s) Download to your calendar using vCal

  • UserChristian Graef (Glasgow)
  • ClockWednesday 18 June 2014, 14:30-15:30
  • HousePhysics West 106.

If you have a question about this talk, please contact Ilya Mandel.

First and second generation earth based laser interferometric Gravitational Wave Detectors are variants of the well-known Michelson interferometer configuration. Second generation detectors, such as the Advanced LIGO detectors, will, for the first time, be limited in their sensitivities by quantum mechanical fluctuations over a large frequency range in their detection bands. Successive measurements of the position of the test mass mirrors in a Michelson interferometer do not commute and are thus limited in their accuracy by the Heisenberg Uncertainty Principle (HUP). A prospective option to overcome this limitation are “speed meter” interferometer configurations in which the velocity of the test mass mirrors, caused by a passing gravitational wave, is measured rather than their relative displacement. At Glasgow we are working on the realisation of the world’s first Sagnac speed meter interferometer proof-of-principle experiment. With this experiment we are aiming to demonstrate the predicted lower quantum noise in a Sagnac speed meter compared to a Michelson interferometer which equivalent parameters. In this seminar I will give an overview of the Glasgow Sagnac Speed Meter experiment.

This talk is part of the Astrophysics Seminars series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

Talks@bham, University of Birmingham. Contact Us | Help and Documentation | Privacy and Publicity.
talks@bham is based on talks.cam from the University of Cambridge.