38
3 Biased Brownian Motion
Fig. 3.13 Flashing ratchet with τ = 0.4 : v vs load Force, F load . We can observe the motor
effect: For values negatives of the load Force [−0.225, 0], the corresponding velocity is positive,
meaning the motor obtain the energy from its internal mechanism, in our case the dichotomous
noise generation source. This computation was performed with Program 3.4
Fig. 3.14 Flashing ratchet with τ = 0.4 : v vs D, with F = 0 and V 0 fixed. We observe the
curve has a maximum for positive values and a minimum for negative values of < v >, meaning a
constant competition of thermal fluctuation and potential values. This computation was performed
with Program 3.4, with the potential tilted to the right
3 Biased Brownian Motion
Fig. 3.13 Flashing ratchet with τ = 0.4 : v vs load Force, F load . We can observe the motor
effect: For values negatives of the load Force [−0.225, 0], the corresponding velocity is positive,
meaning the motor obtain the energy from its internal mechanism, in our case the dichotomous
noise generation source. This computation was performed with Program 3.4
Fig. 3.14 Flashing ratchet with τ = 0.4 : v vs D, with F = 0 and V 0 fixed. We observe the
curve has a maximum for positive values and a minimum for negative values of < v >, meaning a
constant competition of thermal fluctuation and potential values. This computation was performed
with Program 3.4, with the potential tilted to the right