Microstate

A microstate is a single atomistic configuration—a snapshot in space and time:

• One frame in a trajectory;
• One pose from a docking simulation;
• One QM calculation of a conformation.

Fields at this level use cadence: microstate and describe things that can vary across microstates:

• Coordinates;
• Velocities;
• Energies;
• Electronic structure.

For instance:

class Energy:
    electronic: ...

An ensemble can have zero or many microstates.