Designing potentials by sculpturing wires

Journal Article · Fri Jun 15 00:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.75.063604· OSTI ID:20991194

Della Pietra, Leonardo; Aigner, Simon; Groth, Soenke ^[1]; Hagen, Christoph von; Schmiedmayer, Joerg ^[1]; Bar-Joseph, Israel ^[2]; Lezec, Henri J ^[3]

---

1. Physikalisches Institut, Universitaet Heidelberg, 69120 Heidelberg (Germany)
2. Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 7600 (Israel)
3. ISIS, Universite Louis Pasteur, 8 Allee Gaspard Monge, 67083 Strasbourg (France)

Magnetic trapping potentials for atoms on atom chips are determined by the current flow in the chip wires. By modifying the shape of the conductor we can realize specialized current flow patterns and therefore microdesign the trapping potentials. We have demonstrated this by nano-machining an atom chip using the focused ion beam technique. We built a trap, a barrier, and using a Bose-Einstein Condensate as a probe we showed that by polishing the conductor edge the potential roughness on the selected wire can be reduced. Furthermore, we give different other designs and discuss the creation of a one-dimensional magnetic lattice on an atom chip.

• OSTI ID: 20991194
• Journal Information: Physical Review. A, Vol. 75, Issue 6; Other Information: DOI: 10.1103/PhysRevA.75.063604; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSE-EINSTEIN CONDENSATION
CURRENTS
ION BEAMS
ONE-DIMENSIONAL CALCULATIONS
PARTICLES
POLISHING
POTENTIALS
ROUGHNESS
TRAPPING
TRAPS
WIRES