13 citations · 13 across the 7 of their papers we have counts for
7 papers
Momentum reconstruction from Unruh-deWitt detectors
Jesse Huhtala, Iiro Vilja
We investigate momentum reconstruction for particle processes observed by Unruh-deWitt detector setups. In particular, we derive the probability distributions for particle momenta…
Phenomenological constraints on "impossible" measurements
Jesse Huhtala, Iiro Vilja
In this article, we analyze an "impossible measurement" scenario presented by Sorkin. This scenario involving a joint measurement on spacelike separated systems in an intermediary…
Normalizing Fock space states in static spacetimes
Jesse Huhtala, Iiro Vilja
In quantum field theory, sharp momentum states have to be normalized to be in Fock space. We investigate different normalization schemes, both box normalization and wave packets. T…
Packaging particles in curved spacetimes
Jesse Huhtala, Iiro Vilja
Scattering calculations in curved spacetime are technically complicated and, in the case of a general spacetime metric, quite impossible. Even in the cases where perturbative scatt…
Practical Derivations of Fermion and Gauge Boson Reduction Formulae in Curved Spacetimes
Jesse Huhtala, Iiro Vilja
LSZ-type reduction formulae are derived for gauge fields and fermions in curved spacetime. The formulae are derived using a conserved current method applicable also to flat spaceti…
Perturbative approaches to quantum field theory in curved space-time
Jesse Huhtala, Nicola Lo Gullo, Iiro Vilja
Despite the large amount of work done in quantum field theory in curved space-times, there are not great many results available for perturbative calculations of particle processes…
Spherical Density Functional Theory
Ágnes Nagy, Kalevi Kokko, Jesse Huhtala +2
Recently, Theophilou (J. Chem.Phys {\bf 149} 074104 (2018)) showed that a set of spherically symmetric densities determines uniquely the external potential in molecules and solids.…