Würzburg Seminar on Quantum Field Theory and Gravity
QFT of compact stars
|Datum:||17.01.2023, 14:15 - 15:15 Uhr|
|Veranstalter:||Lehrstuhl für Theoretische Physik III|
|Vortragende*r:||Dr. Ignacio Reyes|
We explore the behavior of QFT in the spacetime of very compact stars. The trapping of modes around the inner light ring at the classical level leads, in the quantum theory, to a vacuum renormalized stress tensor that diverges in the Buchdahl limit and violates energy conditions. Thus, some well known classical theorems forbidding compact objects in GR might need revision at the quantum level.