In-phase and anti-phase entanglement dynamics of Rydberg atomic pairs
| Autor: | Jin-Hui Wu, Chu-Hui Fan, Han-Xiao Zhang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Field (physics) business.industry Quantum Physics 02 engineering and technology Quantum entanglement Quantum channel 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics symbols.namesake Dipole Optics Excited state 0103 physical sciences symbols Rydberg formula Physics::Atomic Physics Atomic physics van der Waals force 0210 nano-technology business Ground state |
| Zdroj: | Optics Express. 28:35350 |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.408799 |
| Popis: | We study the correlated evolutions of two far-spaced Rydberg atomic pairs with different resonant frequencies, interacting via van der Waals (vdW) potentials and driven by a common laser field. They are found to exhibit in-phase (anti-phase) beating dynamics characterized by identical (complementary) intra-pair entanglements under a specific condition in regard of inter-pair vdW potentials and driving field detunings. This occurs when each atomic pair just oscillates between its ground state and symmetric entangled state because its doubly excited state and asymmetric entangled state are forbidden due to rigid dipole blockade and perfect destructive interference, respectively. More importantly, optimal inter-pair overall entanglement can be attained at each beating node corresponding to semi-optimal intra-pair entanglements, and inevitable dissipation processes just result in a slow decay of intra-pair and inter-pair entanglements yet without destroying in-phase and anti-phase beating dynamics. |
| Databáze: | OpenAIRE |
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