35 citations · 77 across the 3 of their papers we have counts for
6 papers
Isotope shifts of natural Sr+ measured by laser fluorescence in a sympathetically cooled Coulomb crystal
Brice Dubost, Romain Dubessy, Benjamin Szymanski +3
We measured by laser spectroscopy the isotope shifts between naturally-occurring even-isotopes of strontium ions for both the (violet) and the…
Large 2D Coulomb crystals in a radio frequency surface ion trap
B. Szymanski, R. Dubessy, B. Dubost +3
We designed and operated a surface ion trap, with an ion-substrate distance of 500\mum, realized with standard printed-circuit-board techniques. The trap has been loaded with up to…
Efficient quantification of non-Gaussian spin distributions
B. Dubost, M. Koschorreck, M. Napolitano +3
We study theoretically and experimentally the quantification of non-Gaussian distributions via non-destructive measurements. Using the theory of cumulants, their unbiased estimator…
Interaction-based quantum metrology showing scaling beyond the Heisenberg limit
M. Napolitano, M. Koschorreck, B. Dubost +3
Quantum metrology studies the use of entanglement and other quantum resources to improve precision measurement. An interferometer using N independent particles to measure a paramet…
QND Measurement of Large-Spin Ensembles by Dynamical Decoupling
M. Koschorreck, M. Napolitano, B. Dubost +1
Quantum non-demolition (QND) measurement of collective variables by off-resonant optical probing has the ability to create entanglement and squeezing in atomic ensembles. Until now…
Measurement of Spin Projection Noise in Broadband Atomic Magnetometry
M. Koschorreck, M. Napolitano, B. Dubost +1
We measure the sensitivity of a broadband atomic magnetometer using quantum non-demolition spin measurements. A cold, dipole-trapped sample of rubidium atoms provides a long-lived…