pypsqueak 1.0.2

A Python package for simulated quantum computing.

pypSQUEAK — Python Packaged Semantic Quantum Expression Architecture

A Python API for writing quantum programs in the SQUEAK language as well as a hybrid quantum/classical virtual machine for running them.

Features of pypSQUEAK include:

• Variable-size quantum and classical registers. The sky's the limit. (Well, your hard drive's size is anyway.)
• Built-in set of universal one-qubit gates as well as several important two-qubit gates.
• User-defined static or parametric gates of arbitrary size.
• Classical logic gates.
• Program control flow with conditionals and loops.
• Modeling of noisy quantum channels.

For more information, consult the documentation.

Installation

Installation is done via pip: pip install pypsqueak

Examples

Several examples are provided in the examples folder. They are Python files demonstrating various aspects of pypSQUEAK. Here is an example of a script that constructs a SQUEAK program to measure a qubit in the one state into the classical register in the presence of noise:

import pypsqueak.api as sq
from pypsqueak.gates import X, I
from pypsqueak.noise import damping_map

p = sq.Program()
qcvm = sq.qcVirtualMachine()

# Prep the 1 state
p.add_instr(X(2))
# Send it through an amp decay channel with 0.3 chance of decay
p.add_instr(I(2), damping_map(0.3))
# measure the resulting qubit
p.measure(2, 0)

zeros = 0
ones = 0
n_runs = 100
for i in range(n_runs):
    if qcvm.execute(p)[0] == 0:
        zeros += 1
    else:
        ones += 1

print(zeros/n_runs, ones/n_runs)

License

This projects is licensed under the MIT License. See LICENSE.txt for more details.