Formation of Molecules near a Feshbach Resonance in a 1D Optical Lattice

Journal Article · Fri Aug 05 00:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.060402· OSTI ID:20699274

Orso, G ^[1]; Pitaevskii, L P ^[1]; Stringari, S ^[1]; Wouters, M ^[1]

---

1. Dipartimento di Fisica, Universita di Trento and BEC-INFM, 1-38050 Povo (Italy)

We study the molecular behavior of two atoms interacting near a Feshbach resonance in the presence of a 1D periodic potential. The critical value of the scattering length needed to produce a molecule and the binding energy at resonance are calculated as a function of the intensity of the periodic potential. Because of the nonseparability of the center of mass and relative motion, the binding energy depends on the quasimomentum of the molecule. This has dramatic consequences on the molecular tunneling properties, which become strongly dependent on the scattering length.

• OSTI ID: 20699274
• Journal Information: Physical Review Letters, Vol. 95, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.95.060402; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMS
BINDING ENERGY
BOUND STATE
CENTER-OF-MASS SYSTEM
FUNCTIONS
MOLECULES
PERIODICITY
POTENTIAL ENERGY
POTENTIALS
RESONANCE
SCATTERING LENGTHS
SCHROEDINGER EQUATION
TUNNEL EFFECT