Dec 14 – 15, 2023
Centre for Particle Theory
Europe/London timezone

Null energy bounds for non-minimally coupled scalar fields

Dec 15, 2023, 2:45 PM
Ph8 (Centre for Particle Theory)


Centre for Particle Theory

Long Talk (20 mins) QFT: Formal Aspects


Diego Pardo Santos (King's College London)


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 the constraints obeyed by the null energy of non-minimally coupled scalar fields at classical and quantum levels. We also discuss the theory in both Jordan and Einstein frames.

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Primary author

Diego Pardo Santos (King's College London)


Dr Ben Freivogel (Universiteit van Amsterdam) Dr Eleni-Alexandra Kontou (Department of Mathematics, King’s College London) Dr Jackson R. Fliss (Department of Applied Mathematics and Theoretical Physics, University of Cambridge)

Presentation materials