Two-wire guides and traps with vertical bias fields on atom chips

Journal Article · Mon Aug 15 04:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.72.023607· OSTI ID:20718185

Brugger, K; Krueger, P; Luo, X; Wildermuth, S; Gimpel, H; Klein, M W; Groth, S; Folman, R; Schmiedmayer, J ^[1]; Bar-Joseph, I ^[2]

---

1. Physikalisches Institut, Universitaet Heidelberg, D-69120 Heidelberg (Germany)
2. Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100 (Israel)

We present atom chip traps and guides created by a combination of two current-carrying wires and a bias field pointing perpendicular to the chip surface. These elements can be arranged in any orientation on the chip surface. We study loading schemes for the traps and present a detailed study of the guiding of thermal atomic clouds in an omnidirectional matter waveguide along a 25-mm-long curved path at various atom-surface distances (35-450 {mu}m). An extension of the scheme for the guiding of Bose-Einstein condensates is outlined. Such a concept enables utilizing the full two-dimensional surface of the chip.

• OSTI ID: 20718185
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSE-EINSTEIN CONDENSATION
DISTANCE
ORIENTATION
RADIATION PRESSURE
SURFACES
TRAPS
TWO-DIMENSIONAL CALCULATIONS
WAVEGUIDES
WIRES