YTF 23

Session

QFT: Formal Aspects

15 Dec 2023, 14:15

Ph8 (Centre for Particle Theory)

Description

Chair: Lucca Fazza Macron

29. Aspects of dimensional reduction in thermal QFT

Luis Gil Martín (Universidad de Granada)

15/12/2023, 14:15

Long Talk (20 mins)

As a quantum field theory (QFT), the Standard Model describes particle interactions at zero temperature with remarkable accuracy. However, at high temperatures, such as those in the early universe, its constituents become an interacting plasma of elementary particles which is best described by combining quantum statistical mechanics with relativistic field theory. One of the preferred...

13. Null energy bounds for non-minimally coupled scalar fields

Diego Pardo Santos (King's College London)

15/12/2023, 14:45

Long Talk (20 mins)

Quantum energy inequalities (QEIs) are restrictions on the duration and magnitude of the negative values that the renormalized energy density can admit in the context of quantum field theory. They have been proven for several free fields in flat and curved spacetimes. Non-minimally coupled scalar classical fields can violate all the main pointwise energy conditions. In this work, we calculate...