Multistable particle-field dynamics in cavity-generated optical lattices
| Autor: | Winterauer, Dominik J., Niedenzu, Wolfgang, Ritsch, Helmut |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Phys. Rev. A 91, 053829 (2015) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.91.053829 |
| Popis: | Polarizable particles trapped in a resonator-sustained optical-lattice potential generate strong position-dependent backaction on the intracavity field. In the quantum regime particles in different energy bands are connected to different intracavity light intensities and optical-lattice depths. This generates a highly nonlinear coupled particle-field dynamics. For a given pump strength and detuning, a factorizing mean-field approach predicts several self-consistent stationary solutions of strongly distinct photon numbers and motional states. Quantum Monte Carlo wavefunction simulations of the master equation confirm these predictions and reveal complex multi-modal photon-number and particle-momentum distributions. Using larger nanoparticles in such a setup thus constitutes a well-controllable playground to study nonlinear quantum dynamics and the buildup of macroscopic quantum superpositions at the quantum-classical boundary. Comment: 10 pages, 9 figures |
| Databáze: | arXiv |
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