University of Birmingham > Talks@bham > Cold Atoms > Optomechanical tests of gravitational decoherence

## Optomechanical tests of gravitational decoherenceAdd to your list(s) Download to your calendar using vCal - Gerard Milburn (Queensland)
- Friday 26 September 2014, 15:00-16:00
- Watson building LTB.
If you have a question about this talk, please contact Vincent Boyer. Note unusual time Penrose and, independently, Diosi, have suggested that gravitational interactions in quantum dynamics should lead to an intrinsic decoherence. I will review their arguments and show how they can impact future experiments in optomechanics. I will also show that these models of gravitational decoherence can be obtained by treating the gravitational interaction between two mechanical resonators as a classical measurement channel. The resulting decoherence model implies that the classically mediated gravitational interaction between two gravitationally coupled resonators cannot create entanglement. The gravitational decoherence rate ( and the complementary heating rate) is of the order of the gravitationally induced normal mode splitting of the two resonators. This talk is part of the Cold Atoms series. ## This talk is included in these lists:Note that ex-directory lists are not shown. |
## Other listsReading Group in Combinatorics and Probability PIPS - Postgraduate Informal Physics Seminars Cold Atoms## Other talksPerfect matchings in random sparsifications of Dirac hypergraphs TBC Hodge Theory: Connecting Algebra and Analysis Ultrafast, all-optical, and highly efficient imaging of molecular chirality Quantum simulations using ultra cold ytterbium The development of an optically pumped magnetometer based MEG system |