Conveners
Session 3
- Peter Millington (University of Nottingham)
Quantum sensors that are used to measure gravitational fields and detect dark energy typically use single particle interferometric techniques that are limited by the time of flight in the interferometer arm. In this talk I will present a new detection method that uses quantum resonances and the sensitivity of collective excitations (phonons) to gravitational fields. When phonons in a...
We consider (2+1)d-QFT at finite temperature on a product of time with a static spatial geometry. Generically, free energy of QFTs on curved spacetime can be very difficult to calculate even for free field theories. For perturbations of flat space we show that free energy difference goes quadratically with perturbation amplitude and may be computed from the linear response of the stress...
The production rate of monopoles from strong magnetic fields at high temperatures is determined by an unstable `sphaleron' field configuration. In this talk I will present the results of a study of this sphaleron in the $SU(2)$ Georgi-Glashow model using lattice techniques. I will show how the sphaleron solution changes as the magnetic field strength is increased, and discuss the...
