- #1
jk22
- 729
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We studied random walk starting from a probability conservation : p(x,t)=p(x+dx,t+dt)+p(x-dx,t+dt)
Which means the particle can go left or right by dx in time dt.
The solution of the differential equation starting from a delta is a gaussian, which means the particle could go apparently at different speed than dx in dt.
Where does this difference comes from ?
Which means the particle can go left or right by dx in time dt.
The solution of the differential equation starting from a delta is a gaussian, which means the particle could go apparently at different speed than dx in dt.
Where does this difference comes from ?