Scientific Results

Deexcitation spectroscopy of strongly interacting Rydberg gases

Year: 2017

Authors: Morsch O., C. Simonelli, M. Archimi, L. Asteria, D. Capecchi, G. Masella, E. Arimondo, D. Ciampini,

Autors Affiliation: [ 1 ]‎ Univ Pisa, Dipartimento Fis Enrico Fermi, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
[ 2 ]‎ INO CNR, Via Giuseppe Moruzzi 1, I-56124 Pisa, Italy
[ 3 ]‎ Univ Pisa, CNISM UdR Dipartimento Fis Enrico Fermi, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
[ 4 ]‎ Univ Strasbourg, 4 Rue Blaise Pascal, F-67081 Strasbourg, France

Abstract: We present experimental results on the controlled deexcitation of Rydberg states in a cold gas of Rb atoms. The effect of the van der Waals interactions between the Rydberg atoms is clearly seen in the deexcitation spectrum and dynamics. Our observations are confirmed by numerical simulations. In particular, for off-resonant (facilitated) excitation we find that the deexcitation spectrum reflects the spatial arrangement of the atoms in the quasi-one-dimensional geometry of our experiment. We discuss future applications of this technique and implications for detection and controlled dissipation schemes.

Journal/Review: PHYSICAL REVIEW A – ATOMIC, MOLECULAR, AND OPTICAL PHYSICS

Volume: 96      Pages from: 043411  to: 043411

KeyWords: Rydberg atoms; Dipole blockade
DOI: 10.1103/PhysRevA.96.043411