Published December 30, 2002 | Version v1
Journal article Metadata-only

Magnetic field control of elastic scattering in a cold gas of fermionic lithium atoms

Creators

  • 1. Max-Planck-Institut fuer Kernphysik, Postfach 103980, 69029 Heidelberg (Germany)
  • 2. FOM instituut voor plasmafysica Rijnhuizen, P.O. Box 1207, 3430 BE Nieuwegein (Netherlands)
  • 3. Institut fuer Experimentalphysik, Universitaet Innsbruck, Technikerstrasse 25, 6020 Innsbruck (Austria)

Description

We study elastic collisions in an optically trapped spin mixture of fermionic lithium atoms in the presence of magnetic fields up to 1.5 kG by measuring evaporative loss. Our experiments confirm the expected magnetic tunability of the scattering length by showing the main features of elastic scattering according to recent calculations. We measure the zero crossing of the scattering length at 530(3) G which is associated with a predicted Feshbach resonance at ∼850 G. Beyond the resonance we observe the expected large cross section in the triplet scattering regime

Additional details

Identifiers

DOI
10.1103/PhysRevLett.89.273202;
arXiv
arXiv:physics/0207098v1;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
89
Journal Issue
27
Journal Page Range
p. 273202-273202.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35030371
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
COOPER PAIRS; ELASTIC SCATTERING; FERMIONS; LITHIUM; MAGNETIC FIELDS; RESONANCE; SUPERFLUIDITY; TRAPS; TUNING
Descriptors DEC
ALKALI METALS; ELEMENTS; METALS; SCATTERING

Optional Information

Notes
(c) 2002 The American Physical Society