Haixing-Hu/dqwl

Simulation of Discrete Quantum Walk on a Line using the Matlab.

DQWL

Simulation of Discrete Quantum Walk on a Line using the Matlab.

Usage

1. Puts all *.m files in a directory.
2. Sets the directory as the working directory of the Matlab.
3. Calls the function dqwl(n) with an argument n, which is the number of steps to be walked by the quantum walker. The function will returns a (2 * n + 1)-dimensional vector, whose i-th coordinate representing the probability of the quantum walker at the coordinate (i - (n + 1)) after n steps.
4. Calls the function dqwl(n,s) with an argument n and an optional argument s, will simulate the discrete quantum walk on a line in n steps and the initial coin state is set to s.

Example

plot([-100:100], dqwl(100))

The above command will yield the following diagram:

plot([-100:100], dqwl(100, qubit(1)))

The above command will yield the following diagram: