It allowed field configuration of notches in all 26 positions.

Computer modeled odd looking electromagnets will directly produce the needed magnetic field configuration.

The field configuration of an instanton is very different from that of the vacuum.

Instead it is a functional of field configurations on all of spacetime.

Any external field applied to a perfect conductor will have no effect on its internal field configuration.

A transformation from one such field configuration to another is called a gauge transformation.

In the ordered region, there are field configurations which can carry topological charge.

Yet, the electromagnetic field configuration in the three regions has not been considered in details.

Potential field configurations occupy space that contains no electric current at all.

In other words, the microstates of the system are expressed through field configurations.