TSVP Talk: Spontaneous quasiparticle creation in an analogue preheating experiment by Amaury Micheli

Title: Spontaneous quasiparticle creation in an analogue preheating experiment

Speaker: Amaury Micheli, RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS)

Abstract: First, I will briefly outline the motivations and concepts that underpin the analogue gravity program. Next, I will provide a detailed description of a specific experiment designed to simulate various features of the cosmological reheating era. Finally, I will present our recent experimental results from this setup, where we demonstrated the parametric creation of quasiparticle pairs from the quantum vacuum, drawing an analogy with the preheating phase of reheating.

Profile: Amaury Micheli is a postdoctoral researcher at RIKEN iTHEMS in Wako, Japan. His research seeks evidence for the quantum nature of gravity by identifying and quantifying quantum correlations in settings where gravitational, or gravity-like, and quantum effects coexist; from the primordial inhomogeneities generated during inflation to laboratory analogues of curved spacetime. Amaury's work combines analytical field theory, numerical and semi-classical simulation, and close collaboration with experimental teams, including the observation of spontaneous pair creation in a cold-atom analogue of cosmological preheating. His research is strongly interdisciplinary, importing quantum-information tools into cosmology and testing high-energy vacuum amplification predictions in table-top experiments.

Language: English

Target audience: General audience/everyone at OIST and beyond.
Freely accessible to all OIST members and guests without registration.

This talk will also be broadcast online via Zoom:
Meeting ID: 993 1216 5065
Passcode: 603487

※ Please note that this event may be recorded and the videos uploaded. In addition, photos may be taken during the event. These are intended for publication online (the OIST website, social media, etc.)※