# INIT

Controls the initialization if the beads are not present [Edit on GitHub]

## Keywords

- CENTROID_SPEED

- LEVY_CORRELATED

- LEVY_POS_SAMPLE

- LEVY_SEED

- LEVY_TEMP_FACTOR

- RANDOMIZE_POS

- THERMOSTAT_SEED

- VELOCITY_QUENCH

- VELOCITY_SCALE

## Keyword descriptions

CENTROID_SPEED: logical = F

  Lone keyword: `T`

  adds random velocity component to the centroid modes (useful to correct for the averaging out of the speed of various beads) [Edit on GitHub]

LEVY_CORRELATED: logical = F

  Lone keyword: `T`

  Use the same Levy path for all atoms, though with mass-dependent variances (might help at very low T) [Edit on GitHub]

LEVY_POS_SAMPLE: logical = F

  Lone keyword: `T`

  Sample bead positions assuming free particle behavior (performs a Levy random walk of length P around the classical position of each atom at the physical temperature defined in PINT%TEMP) [Edit on GitHub]

LEVY_SEED: integer = 1234

  Usage: LEVY_SEED <INTEGER>

  Initial seed for the (pseudo)random number generator that controls Levy walk for bead positions. [Edit on GitHub]

LEVY_TEMP_FACTOR: real = 1.00000000E+000

  Multiplicative correction factor for the temperature at which the Levy walk is performed (correction is due to the interactions that modify the spread of a free particle) [Edit on GitHub]

RANDOMIZE_POS: logical = F

  Lone keyword: `T`

  add gaussian noise to the positions of the beads [Edit on GitHub]

THERMOSTAT_SEED: integer = 12345

  Usage: THERMOSTAT_SEED <INTEGER>

  Initial seed for the (pseudo)random number generator that controls the PILE and PIGLET thermostats. [Edit on GitHub]

VELOCITY_QUENCH: logical = F

  Lone keyword: `T`

  set the initial velocities to zero [Edit on GitHub]

VELOCITY_SCALE: logical = F

  Lone keyword: `T`

  scale initial velocities to the temperature given in MOTION%PINT%TEMP [Edit on GitHub]