Conveners
HA. Gravitation
- George Siopsis (University of Tennessee at Knoxville)
Josep Sanjuan
(University of Florida)
10/21/11, 10:45 AM
Contributed
The Laser Interferometer Space Antenna (LISA) is a space-based gravitational wave (GW) observatory with the primary scientific goal of detecting and observing GW from astronomical sources in the milli-Hertz range. Such observations will provide a new way to explore the Universe and they will bring new rich information about its structure and evolution. However, GWs signals are very weak and...
Eric Deleeuw
(University of Florida)
10/21/11, 10:57 AM
Contributed
The Laser Interferometer Gravitational-wave Observatory (LIGO) is currently being upgraded to Advanced LIGO. One of the main changes is the increase in input laser power from 30W to 165W. In Advanced LIGO up to 600kW laser power will circulate inside the interferometer. Some of the power will be absorbed by the LIGO test masses, creating a thermal gradient that will deform them changing the...
Darsa Donelan
(University of Florida)
10/21/11, 11:09 AM
Contributed
Laser ranging and interferometry are essential technologies allowing for many astounding new space-based missions such as the Laser Interferometer Space Antenna (LISA) to measure gravitational radiation emitted from distant super massive black hole mergers or distributed aperture telescopes with unprecedented angular resolution in the NIR or visible regime. The requirements on laser frequency...
Mr
Daniel Amariutei
(University of Florida)
10/21/11, 11:21 AM
Contributed
Laser interferometric gravitational wave detectors are by far the most sensitive interferometer in the world. They require exquisite control over all degrees of freedom of the optical components comprising the main detector but also over all degrees of freedom of the used laser beam. One of the most critical degrees of freedom is the propagation direction and beam location of the input beam...
Joseph Rudmin
(James Madison University)
10/21/11, 11:33 AM
Contributed
Scaling of physical quantities shows the symmetries of an isotropic metric. For example, invariance of Planck's constant under gravitational scaling provides consistency of general relativity with quantum mechanics. Invariance of charge and electric field strength provide consistency with electromagnetism. Transitivity of scaling eliminates the traditional need for a globally preferred...
Danila Korytov
(University of Florida)
10/21/11, 11:45 AM
Contributed
Space-based interferometric gravitational wave observatories will measure changes in the distance between free falling proof masses inside widely separated spacecraft with pm sensitivity. These observatories~will use fast telescopes to exchange laser beams. These telescopes are part of the probed optical distances and any length change in the gravitational wave band between secondary and...
