Two-body interactions and decay of three-level Rydberg-dressed atoms
| Autor: | Shannon Whitlock, S. Helmrich, N. Pehoviak, A. Arias |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Quantum fluid
Atomic Physics (physics.atom-ph) FOS: Physical sciences 01 natural sciences 010305 fluids & plasmas law.invention Physics - Atomic Physics symbols.namesake law Quantum master equation 0103 physical sciences Intermediate state Physics::Atomic Physics 010306 general physics Physics Condensed Matter::Quantum Gases Dissipation Condensed Matter Physics Laser Atomic and Molecular Physics and Optics 3. Good health Quantum Gases (cond-mat.quant-gas) Rydberg formula symbols Atomic physics Condensed Matter - Quantum Gases Realization (systems) Sign (mathematics) |
| Popis: | We theoretically analyze the interactions and decay rates for atoms dressed by multiple laser fields to strongly interacting Rydberg states using a quantum master equation approach. In this framework a comparison of two-level and three-level Rydberg-dressing schemes is presented. We identify a resonant enhancement of the three-level dressed interaction strength which originates from cooperative multiphoton couplings as well as small distance dependent decay rates. In this regime the soft-core shape of the potential is independent of the sign of the bare Rydberg-Rydberg interaction, while its sign can be repulsive or attractive depending on the intermediate state detuning. As a consequence, near-resonant Rydberg dressing in three-level atomic systems may enable the realization of laser driven quantum fluids with long-range and anisotropic interactions and with controllable dissipation. 5 pages, 2 figures, 1 table |
| Databáze: | OpenAIRE |
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