Quantum physics and gravity: the odd couple


Prof. Gerard Milburn (UQ, EQuS)
This colloquium will be held 3 pm, 8th April, in Frank White 43-102

Due to advances in technology it has now become possible to conduct  quantum experiments in which gravitational interactions between the constituents cannot be ignored. This raises some curious questions, for example: what is the gravitational field of a single  particle in a superposition of two macroscopically distinguishable positions.  In this talk I will discuss possible experiments using opto-mechanical systems that demand an  answer to this and related questions. In doing so I will review some wild conjectures, including Penrose’s gravitationally-induced wave function collapse, and suggest some possible opto-mechanical experiments to test them.