2008/04/30 by B. Sun, Bao-Zhi Sun, F. Robicheaux
Computer Science · Physics and Astronomy · #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Correlation #Electronic structure #Excitation #Geometry #Ionization #Lattice (music) #Physics #Quantum #Quantum Information and Cryptography #Quantum mechanics #Quantum optics and atomic interactions #Rydberg atom #Rydberg formula #Statistical physics #Superatom #cond-mat.other #quant-ph
paper · pdf · doi:10.1088/1367-2630/10/4/045032
published as New J. Phys. 10, 045032 (2008)
openalex publication_date 2008/04/30 · arxiv created 2008/05/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We compute the dynamics of excitation and two-body correlation for two-level 'pseudoatoms' in a one-dimensional (1D) lattice. We adopt a simplified model where pair excitation within a finite range is perfectly blocked. Each superatom is initially in the ground state, and then subjected to an external driving laser with Rabi frequency satisfying a Poissonian distribution, mimicking the scenario in Rydberg gases. We find that two-body quantum correlation drops very fast with the distance between pseudoatoms. However, the total correlation decays slowly even at large distance. Our results may be useful to the understanding of Rydberg gases in the strong blockade regime.