2012/04/12 by Weibin Li, Lama Hamadeh, Igor Lesanovsky · 33 citations
Computer Science · Physics and Astronomy · #Atom (system on chip) #Atomic coherence #Atomic physics #Coherence (philosophical gambling strategy) #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Excited state #Ground state #Interference (communication) #Ion #Laser #Lattice (music) #Optical lattice #Optics #Physics #Quantum Information and Cryptography #Quantum mechanics #Quantum optics and atomic interactions #Rydberg atom #Rydberg formula #Rydberg matter #Superfluidity #cond-mat.quant-gas #physics.atom-ph
paper · pdf · doi:10.1103/physreva.85.053615
published in Physical Review A 85(5) (American Physical Society) · 7 pages, 4 figures
arxiv created 2012/04/12 · openalex publication_date 2012/05/14 · arxiv updated 2012/06/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the dynamics of an atomic Bose-Einstein condensate in an optical lattice in which the electronic ground state of each atom is weakly coupled to a highly excited Rydberg state by a far off-resonant laser. This dressing induces a switchable effective soft-core interaction between ground-state atoms which, in the lattice, gives rise to on-site as well as long-range interaction terms. Upon switching on the dressing laser the coherence properties of the atomic superfluid undergo a nontrivial collapse and revival dynamics which can be observed in the interference pattern that is created after a release of the atoms from the optical lattice. This interference signal strongly depends on the strength and the duration of the dressing laser pulse and can be used to probe and characterize the effective interaction between Rydberg-dressed atoms.