A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf
.
Total Control over Ultracold Interactions via Electric and Magnetic Fields
2008
Physical Review Letters
The scattering length is commonly used to characterize the strength of ultracold atomic interactions, since it is the leading parameter in the low-energy expansion of the scattering phase shift. Its value can be modified via a magnetic field, by using a Feshbach resonance. However, the effective range term, which is the second parameter in the phase shift expansion, determines the width of the resonance and gives rise to important properties of ultracold gases. Independent control over this
doi:10.1103/physrevlett.100.153201
pmid:18518105
fatcat:6qpzh53plzbubnb5y3mkq7jtou