Action: ABMD

Module	bias
Description	Usage
Adds a ratchet-and-pawl like restraint on one or more variables.

Output components

This action calculates the values in the following table. These values can be referenced elsewhere in the input by using this Action's label followed by a dot and the name of the value required from the list below.

Name	Type	Description
bias	scalar	the instantaneous value of the bias potential
force2	scalar	the instantaneous value of the squared force due to this bias potential
_min	scalar	one or multiple instances of this quantity can be referenced elsewhere in the input file

Input

The arguments that serve as the input for this action are specified using one or more of the keywords in the following table.

Keyword	Type	Description
ARG	scalar	the labels of the scalars on which the bias will act

Further details and examples

Text from manual goes here

Syntax

The following table describes the keywords and options that can be used with this action

Keyword	Type	Default	Description
ARG	input	none	the labels of the scalars on which the bias will act
TO	compulsory	none	The array of target values
KAPPA	compulsory	none	The array of force constants
NUMERICAL_DERIVATIVES	optional	false	calculate the derivatives for these quantities numerically
MIN	optional	not used	Array of starting values for the bias (set rho_m(t), otherwise it is set using the current value of ARG)
NOISE	optional	not used	Array of white noise intensities (add a temperature to the ABMD)
SEED	optional	not used	Array of seeds for the white noise (add a temperature to the ABMD)