Seeded excitation avalanches in off-resonantly driven Rydberg gases

Year: 2016

Authors: Simonelli C., Valado MM., Masella G., Asteria L., Arimondo E., Ciampini D., Morsch O.

Autors Affiliation: Univ Pisa, Dipartimento Fis E Fermi, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy; CNR, INO, Via G Moruzzi 1, I-56124 Pisa, Italy.

Abstract: We report an experimental investigation of the facilitated excitation dynamics in off-resonantly driven Rydberg gases by separating the initial off-resonant excitation phase from the facilitation phase, in which successive facilitation events lead to excitation avalanches. We achieve this by creating a controlled number of initial seed excitations. Greater insight into the avalanche mechanism is obtained from an analysis of the full counting distributions. We also present simple mathematical models and numerical simulations of the excitation avalanches that agree well with our experimental results.

Journal/Review: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

Volume: 49 (15)      Pages from: 154002-1  to: 154002-7

More Information: The authors acknowledge support by the European Union H2020 FET Proactive project RySQ (grant No. 640378) and by the EU Marie Curie ITN COHERENCE (Project number 265031), and thank I Lesanovsky for discussions.
KeyWords: Rydberg excitation; Quantum control; Correlated dynamics; Blockade; Atoms
DOI: 10.1088/0953-4075/49/15/154002

Citations: 24
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