6 papers
A Quantum Dominant Energy Condition
Stefan Hollands, Roberto Longo, Gerardo Morsella
We propose a quantum dominant energy condition (QDEC) for the stress tensor in the context of quantum field theory in curved spacetimes. A rigorous proof is given for the case of R…
New Horizons in Effective Field Theory?
Stefan Hollands, Dustin Urbiks
We consider the most general parity symmetric effective scalar tensor theory in four dimensions containing terms up to fourth derivative order in the Lagrangian. It has been shown…
Bekenstein's bound for wave packets
Stefan Hollands, Roberto Longo, Gerardo Morsella
Let be a spatial region of width and a Klein-Gordon wave packet localized in at time zero. We show the inequality ; here, is the entropy of $Φ…
A New Proof of the QNEC
Stefan Hollands, Roberto Longo
We give a simplified proof of the quantum null energy condition (QNEC). Our proof is based on an explicit formula for the shape derivative of the relative entropy, with respect to…
Modular Time Evolution and the QNEC
Stefan Hollands
We establish an inequality restricting the evolution of states in quantum field theory with respect to the modular flow of a wedge, , for large . Our bound is related…
Bekenstein Bound for Approximately Local Charged States
Stefan Hollands, Roberto Longo
We generalize the energy-entropy ratio inequality in quantum field theory (QFT) established by one of us from localized states to a larger class of states. The states considered in…