Fig. 3
Amplitude distribution of spatial delays. a For a particle passing above a rectangular barrier of a width d, pd = 300, and a height V, for E(p)/V = 4/3. There is a stationary region centred at the classical delay \({x\prime}_{{\!\!\mathrm{cl}}}\)(p). b Same as a, but for the case of tunnelling, E(p)/V = 2/3. There is no preferred value for the delay x′
