Details
| Original language | English |
|---|---|
| Title of host publication | 2005 Conference on Lasers and Electro-Optics Europe |
| Publication status | Published - 23 Jan 2005 |
| Event | 2005 Conference on Lasers and Elctro-Optics Europe - Munich, Germany Duration: 12 Jun 2005 → 17 Jun 2005 |
Abstract
Optical potentials provide an excellent tool to probe the nature of quantum degenerate Bose gases and serve as an ideal testing ground for theories originating in solid state physics. The potential depth and the trap spacing allow for control of the trapping frequency and tunnelling rate. These potentials have recently allowed for experiments in the regime where the systems is dominated by strong correlations. The addition of small pseudorandom potentials to disturb these ideal lattices allows for the introduction of disorder in the experimental system. Depending on the experimental parameters this disorder is predicted to lead to the formation of Bose- or Anderson- glass phases [1]. Recent experiments with Bose-Einstein condensates in single traps with added disorder [2] have shown the feasibility of the method. In our experiment the disorder is superimposed on a one dimensional optical lattice with a lattice spacing of 412 nm and a trap depth of up to a few hundred recoil energies. We present several methods to introduce disorder in our experimental system by using additional lattice potentials or pseudorandom dipole potential and discuss their implementation. We report on our progress towards the production of an Anderson-glass phase and the observation of localisation effects in the sample using an interferometric method.
ASJC Scopus subject areas
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Electrical and Electronic Engineering
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2005 Conference on Lasers and Electro-Optics Europe. 2005. 1568478.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Bose-Einstein condensates in disordered optical lattices
AU - Arlt, J.
AU - Schulte, T.
AU - Drenkelforth, S.
AU - Kruse, J.
AU - Ertmer, W.
PY - 2005/1/23
Y1 - 2005/1/23
N2 - Optical potentials provide an excellent tool to probe the nature of quantum degenerate Bose gases and serve as an ideal testing ground for theories originating in solid state physics. The potential depth and the trap spacing allow for control of the trapping frequency and tunnelling rate. These potentials have recently allowed for experiments in the regime where the systems is dominated by strong correlations. The addition of small pseudorandom potentials to disturb these ideal lattices allows for the introduction of disorder in the experimental system. Depending on the experimental parameters this disorder is predicted to lead to the formation of Bose- or Anderson- glass phases [1]. Recent experiments with Bose-Einstein condensates in single traps with added disorder [2] have shown the feasibility of the method. In our experiment the disorder is superimposed on a one dimensional optical lattice with a lattice spacing of 412 nm and a trap depth of up to a few hundred recoil energies. We present several methods to introduce disorder in our experimental system by using additional lattice potentials or pseudorandom dipole potential and discuss their implementation. We report on our progress towards the production of an Anderson-glass phase and the observation of localisation effects in the sample using an interferometric method.
AB - Optical potentials provide an excellent tool to probe the nature of quantum degenerate Bose gases and serve as an ideal testing ground for theories originating in solid state physics. The potential depth and the trap spacing allow for control of the trapping frequency and tunnelling rate. These potentials have recently allowed for experiments in the regime where the systems is dominated by strong correlations. The addition of small pseudorandom potentials to disturb these ideal lattices allows for the introduction of disorder in the experimental system. Depending on the experimental parameters this disorder is predicted to lead to the formation of Bose- or Anderson- glass phases [1]. Recent experiments with Bose-Einstein condensates in single traps with added disorder [2] have shown the feasibility of the method. In our experiment the disorder is superimposed on a one dimensional optical lattice with a lattice spacing of 412 nm and a trap depth of up to a few hundred recoil energies. We present several methods to introduce disorder in our experimental system by using additional lattice potentials or pseudorandom dipole potential and discuss their implementation. We report on our progress towards the production of an Anderson-glass phase and the observation of localisation effects in the sample using an interferometric method.
UR - http://www.scopus.com/inward/record.url?scp=42749107287&partnerID=8YFLogxK
U2 - 10.1109/CLEOE.2005.1568478
DO - 10.1109/CLEOE.2005.1568478
M3 - Conference contribution
AN - SCOPUS:42749107287
SN - 0780389743
SN - 9780780389748
BT - 2005 Conference on Lasers and Electro-Optics Europe
T2 - 2005 Conference on Lasers and Elctro-Optics Europe
Y2 - 12 June 2005 through 17 June 2005
ER -