SMuK 2023 – wissenschaftliches Programm

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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik

MP 7: Classical and Quantum Gravity

MP 7.3: Vortrag

Mittwoch, 22. März 2023, 14:40–15:00, ZEU/0250

Investigating Quantum Field Theory on Curved Spaces through Quantum Simulation — •Christian Friedrich Schmidt — Theoretisch-Physikalisches-Institut, Jena, Deutschland

In recent years, high-energy-phenomena like Hawking radiation or cosmological particle creation have been successfully simulated in laboratories by means of so-called quantum simulators. A prominent example among these are Bose-Einstein condensates, in which low-energetic (acoustic) fluctuations of the condensate wavefunction behave like a scalar quantum field on a curved spacetime. Excitations of this field are realized as phonons, which experience an effective, gravitational field set by the condensate background. The curved geometry is essentially realized through a time- and space-dependent speed of sound. In particular, a stationary background condensate yields an FLRW metric. Hence, this analogy gives an exciting opportunity to study phenomena of quantum fields in cosmological and also more general spacetimes in a controllable, experimental setup.