76 citations · 400 across the 16 of their papers we have counts for
16 papers
Dark state role in time-reversal symmetry breaking
Dario Fasone, Rita Veilande, Luigi Giannelli +5
We investigate the role of the global driving phase in the dynamics of driven few-level quantum systems, a central setting in coherent control of atomic, molecular, and solid-s…
Reversing adiabatic state preparation in few-level quantum systems
L. Romanato, N. Eshaqi-Sani, L. Lepori +3
We present a detailed study of an adiabatic state preparation in an effective three-level quantum system. States can be prepared with high speed and fidelity by adding a counterdia…
Engineering quantum control with twisted-light fields induced optical transitions
T. Zanon-Willette, F. Impens, E. Arimondo +3
A novel form of quantum control is proposed by applying twisted-light also known as optical vortex beams to drive ultra-narrow atomic transitions in neutral Ca, Mg, Yb, Sr, Hg and…
Survey of hyperfine structure measurements in alkali atoms
M. Allegrini, E. Arimondo, L. A. Orozco
The spectroscopic hyperfine constants for all the alkali atoms are reported. For atoms from lithium to cesium, only the long lived atomic isotopes are examined. For francium, the m…
Optical spectroscopy of a microsized Rb vapour sample in magnetic fields up to 58 tesla
D. Ciampini, R. Battesti, C. Rizzo +1
We use a magnetometer probe based on the Zeeman shift of the rubidium resonant optical transition to explore the atomic magnetic response for a wide range of field values. We recor…
Van der Waals explosion of cold Rydberg clusters
R. Faoro, C. Simonelli, M. Archimi +6
We report on the direct measurement in real space of the effect of the van der Waals forces between individual Rydberg atoms on their external degrees of freedom. Clusters of Rydbe…
Quantum engineering of atomic phase-shifts in optical clocks
T. Zanon-Willette, S. Almonacil, E. de Clercq +2
Quantum engineering of time-separated Raman laser pulses in three-level systems is presented to produce an ultra-narrow optical transition in bosonic alkali-earth clocks free from…
Observation of Stückelberg oscillations in accelerated optical lattices
A. Zenesini, D. Ciampini, O. Morsch +1
We report the experimental observation of Stückelberg oscillations of matter waves in optical lattices. Extending previous work on Landau-Zener tunneling of Bose-Einstein condensat…
Expansion of matter waves in static and driven periodic potentials
C. E. Creffield, F. Sols, D. Ciampini +2
We study the non-equilibrium dynamics of cold atoms held in an optical lattice potential. The expansion of an initially confined atom cloud occurs in two phases: an initial quadrat…
Time-resolved measurement of Landau--Zener tunneling in different bases
G. Tayebirad, A. Zenesini, D. Ciampini +5
A comprehensive study of the tunneling dynamics of a Bose--Einstein condensate in a tilted periodic potential is presented. We report numerical and experimental results on time-res…
Ion detection in the photoionization of a Rb Bose-Einstein condensate
M. Viteau, J. Radogostowicz, A. Chotia +7
Two-photon ionization of Rubidium atoms in a magneto-optical trap and a Bose-Einstein condensate (BEC) is experimentally investigated. Using 100 ns laser pulses, we detect single i…
Excitation and damping of collective modes of a Bose-Einstein condensate in a one-dimensional lattice
O. Morsch, J. H. Müller, D. Ciampini +5
The mode structure of a Bose-Einstein condensate non-adiabatically loaded into a one-dimensional optical lattice is studied by analyzing the visibility of the interference pattern…
Coherent acceleration and Landau-Zener tunneling of Bose-Einstein condensates in 1-D optical lattices
O. Morsch, J. H. Müller, M. Cristiani +1
We have loaded Bose-Einstein condensates into one-dimensional, off-resonant optical lattices and accelerated them by chirping the frequency difference between the two lattice beams…
Slow light in three-level cold atoms: a numerical analysis
E. Cerboneschi, F. Renzoni, E. Arimondo
We investigate theoretically the slow group velocity of a pulse probe laser propagating through a cold sample and interacting with atoms in a three-level configuration having l…
Enhanced absorption Hanle effect on the Fg=F->Fe=F+1 closed transitions
F. Renzoni, C. Zimmermann, P. Verkerk +1
We analyse the Hanle effect on a closed transition. Two configurations are examined, for linear- and circular-polarized laser radiation, with the applied magneti…
Atomic micromotion and geometric forces in a triaxial magnetic trap
J. H. Müller, O. Morsch, D. Ciampini +3
Non-adiabatic motion of Bose-Einstein condensates of rubidium atoms arising from the dynamical nature of a time-orbiting-potential (TOP) trap was observed experimentally. The orbit…