Inducing Transport in a Dissipation-Free Lattice with Super Bloch Oscillations
Journal Article
·
· Physical Review Letters
- Institut fuer Experimentalphysik and Zentrum fuer Quantenphysik, Universitaet Innsbruck, Technikerstrasse 25, 6020 Innsbruck (Austria)
Particles in a perfect lattice potential perform Bloch oscillations when subject to a constant force, leading to localization and preventing conductivity. For a weakly interacting Bose-Einstein condensate of Cs atoms, we observe giant center-of-mass oscillations in position space with a displacement across hundreds of lattice sites when we add a periodic modulation to the force near the Bloch frequency. We study the dependence of these ''super'' Bloch oscillations on lattice depth, modulation amplitude, and modulation frequency and show that they provide a means to induce linear transport in a dissipation-free lattice.
- OSTI ID:
- 21413486
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 104; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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