5 papers · 1 filter
Sensing relativistic quantum fields with minimally perturbing local measurements
F. Daem, L. Ballesteros Ferraz, A. Zampeli +1
We develop a framework for minimally perturbing local measurements in relativistic quantum field theory, with the aim to sense local properties of the field in a non-destructive ma…
Weak continuous measurements require more work than strong ones
Lorena Ballesteros Ferraz, Cyril Elouard
Understanding the energy cost of quantum measurement process and its connection to the measurement performance faces the challenge of modeling the objectification process. The latt…
Kirkwood-Dirac distributions in classical optics
Alfredo Luis, Lorena Ballesteros Ferraz
We develop a comprehensive analysis of the Kirkwood-Dirac distributions in classical optics, revealing their deep connection with optical coherence as fundamental concept in optics…
Dynamical discontinuities in repeated weak measurements revealed by complex weak values
Lorena Ballesteros Ferraz
This work demonstrates that repeated weak measurements together with post-selection can produce sharp dynamical discontinuities in meter observables, even in minimal quantum system…
Temperature-induced measurement sensitivity enhancement via imaginary weak values
Lorena Ballesteros Ferraz, Alexandre Matzkin, Alok Kumar Pan
We investigate the potential of weak measurement and post-selection to enhance measurement sensitivity when the initial probe state is mixed. In our framework, the mixedness of the…