HDWQuantum

Very basic quantum computer simulation in Ruby, can be used for arbitrary complex quantum computation simulations. Not very fast, however.

Instructions and informations

See 'HDWQuantumTest.rb' for a simple example. Initialize a quantum register with the 'Quantum_Register' class by using:

• qreg = Quantum_Register.new(size, state)

Here, size is the number of qubits in the register and state the initial state as a binary number. You can apply quantum operations using:

• qreg.apply_one_qubit_gate(gate, bit)
• qreq.apply_two_qubit_gate(gate, first bit, second bit)
• ...

The gate can be any fitting gate (see 'HDWQuantum.rb' for a list), and the bits are the qubit positions (highest binary bit is defined as 1). A measurement can be done with:

• qreq.measure

And you can cheat by yielding the state vector by:

• qreg.output_state_vector

However, this would not be possible on a real quantum computer and is only helpful for debugging or obtaining a probability table.

What can be done?

Anything you want! Implement own gates by extending the 'Quantum_Gate' module, play around with them, or try to implement special algorithms! Technically, this simulation should be quantum Turing complete ;-). This project was done by me some time ago as a base for a quantum poker game, which I eventually abandoned. Maybe you want to do something like that? It's Ruby code, but porting it to C or any other programming language should not prove too difficult.