Two-atom Rydberg blockade using direct 6StonPexcitation

Autor:	Andrew J. Landahl, Grant Biedermann, D. J. Armstrong, Y. Y. Jau, L. P. Parazzoli, C. W. Chou, Aaron Hankin
Rok vydání:	2014
Předmět:	Physics Quantum decoherence Atomic and Molecular Physics and Optics symbols.namesake Coherent control Electric field Rydberg atom Atom Rydberg formula symbols Physics::Atomic Physics Atomic physics Rydberg state Excitation
Zdroj:	Physical Review A. 89
ISSN:	1094-1622 1050-2947
DOI:	10.1103/physreva.89.033416
Popis:	We explore a single-photon approach to Rydberg state excitation and Rydberg blockade. Using detailed theoretical models, we show the feasibility of direct excitation, predict the effect of background electric fields, and calculate the required interatomic distance to observe Rydberg blockade. We then measure and control the electric field environment to enable coherent control of Rydberg states. With this coherent control, we demonstrate Rydberg blockade of two atoms separated by 6.6(3) $\ensuremath{\mu}$m. When compared with the more common two-photon excitation method, this single-photon approach is advantageous because it eliminates channels for decoherence through photon scattering and ac Stark shifts from the intermediate state while moderately increasing Doppler sensitivity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0ffd61d1b885745bfc911839d116385a https://doi.org/10.1103/physreva.89.033416 Zobrazit plný text záznamu