3 papers
cond-mat.quant-gas2025
Time-optimal force sensing with ultracold atoms
Nicolas Ombredane, Eloi Flament, Charles Babin +3
We develop a time-optimal approach to force sensing using a Bose-Einstein condensate in a shaken optical lattice. Optimal control protocols are derived from a Fisher information fr…
quant-ph2025
Unitary Transformations using Robust Optimal Control on a Cold Atom Qudit
E. Flament, N. Ombredane, F. Arrouas +4
In this paper, we design and experimentally implement various robust quantum unitary transformations (gates) acting on -dimensional vectors (qudits) by tuning a single control p…
cond-mat.quant-gas2025
Probing non-ergodicity and symmetry via coherent forward scattering in a shaken rotor
F. Arrouas, J. Hébraud, N. Ombredane +9
The Coherent Backscattering (CBS) peak is a well-known interferential signature of weak localization in disordered or chaotic systems. More recently, a second interference feature…