Yannick Meurice

Jan 16, 2025 | nature.com | Jin Zhang |Fangli Liu |Boris Braverman |Sheng-Tao Wang |Yannick Meurice

AbstractThe floating phase, a critical incommensurate phase, has been theoretically predicted as a potential intermediate phase between crystalline ordered and disordered phases. In this study, we investigate the different quantum phases that arise in ladder arrays comprising up to 92 neutral-atom qubits and experimentally observe the emergence of the quantum floating phase. We analyze the site-resolved Rydberg state densities and the distribution of state occurrences.

Feb 5, 2024 | link.aps.org | Daniel Simons |Erik Gustafson |Yannick Meurice

We discuss the self-consistency imposed by the analyticity of regular parts of form factors, appearing in the z expansion for semileptonic B-meson decays, when fitted in different kinematic regions. Relying on the uniqueness of functions defined by analytic continuation, we propose four metrics which measure the departure from the ideal analytic self-consistency. We illustrate the process using Belle data for B→Dℓνℓ with the two kinematic regions chosen as the five low-z and the five high-z bins.