Seminar of Department of Theoretical Physics - Giovanna F. do Valle (12.5.2026)
Tuesday 12.5.2026 at 14:00, Lecture room F2/125
Giovanna F. do Valle (Universidade Federal de Minas Gerais, Brazil):
How a Detector Responds to the Vacuum Inside a Superposed Spherical Shell
Abstract:
In this presentation, we explore a detector's response to vacuum fluctuations inside a hollow spherical shell in spatial superposition. To properly describe this system, we employ the formalism of Quantum Reference Frames (QRF), which allows us to transition to a perspective where the detector inherits the quantum delocalization. By performing this change of frame, we can analyze the interaction within a classical gravitational background while maintaining the quantum nature of the source. Finally, we investigate what information the detector’s response provides about the shell's quantum state, identifying which features of the superposition are effectively captured by the detector.