Superconducting coherence length

Superconducting coherence length

A Superconducting coherence length, usually denoted as xi, can be interpreted in two different ways:

* It gives approximate spatial dimension (size) of the Cooper pair,
* It sets the length scale on which the superconducting order parameter changes considerably.

The superconducting coherence length (xi) is one of two parameters in a Ginzburg-Landau theory of superconductivity.

See also

* phenomenological Ginzburg-Landau theory of superconductivity
* microscopic BCS theory of superconductivity

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