Speaker
Alexey Mikhaylenko
(LPI RAS, Skoltech)
Description
We present a theoretical proposal for measuring correlation functions in a quantum field system based on the use of quantum quenches. Using the examples of massive and massless scalar field theories, we show that a short-term perturbation of the system leads to a dependence of the further evolution of the average field on the initial state’s correlation functions. Considering two types of perturbations,namely local and nonlocal quenches, we show which correlation functions can be measured in each of these cases. The proposed procedure can be applied to study non-Gaussian correlations.
Primary author
Alexey Mikhaylenko
(LPI RAS, Skoltech)
Co-authors
Dr.
Andrew Semenov
(Lebedev Physical Institute)
