Laser Probing of Atomic Cooper Pairs
P. Törmä, P. Zoller
DOI 10.1103/PhysRevLett.85.487 · Physical Review Letters
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Abstract
We consider a gas of attractively interacting cold fermionic atoms which are manipulated by laser light. The laser induces a transition from an internal state with large negative scattering length to one with almost no interactions. The process can be viewed as a tunneling of atomic population between the superconducting and the normal states of the gas. It can be used to detect the BCS ground state and to measure the superconducting order parameter.
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