72 citations · 478 across the 39 of their papers we have counts for
3 papers · 2 filters
Quantum strong energy inequalities
Christopher J. Fewster, Eleni-Alexandra Kontou
Quantum energy inequalities (QEIs) express restrictions on the extent to which weighted averages of the renormalized energy density can take negative expectation values within a qu…
A singularity theorem for Einstein-Klein-Gordon theory
Peter J. Brown, Christopher J. Fewster, Eleni-Alexandra Kontou
Hawking's singularity theorem concerns matter obeying the strong energy condition (SEC), which means that all observers experience a nonnegative effective energy density (EED), the…
The art of the state
Christopher J. Fewster
Quantum field theory on curved spacetimes lacks an obvious distinguished vacuum state. We review a recent no-go theorem that establishes the impossibility of finding a preferred st…