Concept
Correlation function (quantum field theory)
Publications associées (29)
Absolute energy levels of liquid water from many-body perturbation theory with effective vertex corrections
Alfredo Pasquarello, Aleksei Tal, Thomas Bischoff
We demonstrate the importance of addressing the F vertex and thus going beyond the GW approximation for achieving the energy levels of liquid water in manybody perturbation theory. In particular, we consider an effective vertex function in both the polariz ...
Natl Acad Sciences2024Bootstrapping traceless symmetric O(N) scalars
Alessandro Vichi, Maria Refinetti, Marten Jan Reehorst
We use numerical bootstrap techniques to study correlation functions of traceless sym-metric tensors of O(N) with two indices ti j. We obtain upper bounds on operator dimen-sions for all the relevant representations and several values of N. We discover sev ...
SCIPOST FOUNDATION2023Diagnosing weakly first-order phase transitions by coupling to order parameters
The hunt for exotic quantum phase transitions described by emergent fractionalized de-grees of freedom coupled to gauge fields requires a precise determination of the fixed point structure from the field theoretical side, and an extreme sensitivity to weak ...
2023Cavity Quantum Electrodynamics with strongly correlated fermions
This thesis presents the first cavity quantum electrodynamics experiments performed with a degenerate gas of Li with strong atom-atom interactions. The first part of this manuscript describes the design and the building of the apparatus that has been e ...
EPFL2022Interaction of Confined Polaritons in Microcavity Structures
A polariton is a quasiparticle formed from the coupling of a confined photon in a cavity to electronic excitation, like exciton in a semiconductor. This dissertation reports on series of experiments in confined polariton interaction by design, fabrication, ...
EPFL2021L'événement proxémique : étude des relations de circulation entre piétons aux heures de pointe à Delhi, Los Angeles, Paris et Tokyo
In a context of traffic networks saturation related to urbanisation acceleration, this research is aimed at contributing to the scientific debate on this issue by building a model to describe dynamic pedestriansâ physical distances regulation behaviours ...
EPFL2018