Vibrational mechanics in an optical lattice: controlling transport via potential renormalization
Autor: | Wickenbrock, A., Holz, P. C., Wahab, N. A. Abdul, Phoonthong, P., Cubero, D., Renzoni, F. |
---|---|
Rok vydání: | 2011 |
Předmět: | |
Druh dokumentu: | Working Paper |
DOI: | 10.1103/PhysRevLett.108.020603 |
Popis: | We demonstrate theoretically and experimentally the phenomenon of vibrational resonance in a periodic potential, using cold atoms in an optical lattice as a model system. A high-frequency (HF) drive, with frequency much larger than any characteristic frequency of the system, is applied by phase-modulating one of the lattice beams. We show that the HF drive leads to the renormalization of the potential. We used transport measurements as a probe of the potential renormalization. The very same experiments also demonstrate that transport can be controlled by the HF drive via potential renormalization. Comment: Phys. Rev. Lett., in press |
Databáze: | arXiv |
Externí odkaz: |