qbitUni — Quantum Universe Simulator

s/o Gemini....

https://github.com/imesh97/qbitUni

About

qbitUni (qu) is a local simulator that allows you to simulate a quantum environment, with operations. We use a C engine to perform the quantum operations and a Python wrapper to interface.

We have a test suite in tests/. Try the OpenQASM parser too!

🚀 Features

• Core Engine: Written in C with multithreading.
• Universality: Supports all standard gates (H, X, Y, Z, S, T, CNOT, CZ, Toffoli, RX, Phase).
• Scientific Tools: Expectation Value <Z> calculation and Noise Simulation for VQE. Benchmarks, too.
• Compatibility: Includes an OpenQASM 2.0 parser.
• Visualization: Built-in ASCII Bloch Spheres and Histograms.

Installation

pip install qbitUni

Setup

Note: This project uses Python 3.13+ and amd64.

Create and run a virtual environment.

python3 -m venv venv
source venv/bin/activate

Test Suite

python3 tests/gates.py
python3 tests/melinda.py
python3 tests/xy.py
python3 tests/parallel.py
python3 tests/universality.py
python3 tests/teleport.py
python3 tests/grover.py
python3 tests/science.py
python3 tests/visuals.py
python3 tests/energy.py
python3 tests/qasm/run.py

python3 tests/benchmark.py

Running your first simulation

1. Code

Create script.py file for this test.

# 📚 Import the Quantum Universe from Qbit
import qbitUni as qu

# ⚡ Initialize a 2-qubit Universe
# This allocates the state vector in C memory
univ = qu.QuantumUniverse(2)
univ.print_state() # Print initial state
# (Notice the |00> state only -- as the other |01>, |10>, |11> are all 0 -- we only print probabilities > 0.01%)

# ⊹ Apply a Hadamard gate to Qubit 0
# This puts Qubit 0 into a 50/50 superposition of |0> and |1>
univ.h(0)
univ.print_state() # Print state after Hadamard

# 🎛️ Apply a CNOT (Controlled-NOT) gate
# Control: Qubit 0, Target: Qubit 1
# This 'links' the two qubits together (Entanglement)
univ.cnot(0, 1)
univ.print_state() # Print state after CNOT

# 🧮 Peek at the Math
# Check the probability of the universe being in state |00> or |11>
print(f"Prob of |00>: {univ.get_prob(0):.2f}")
print(f"Prob of |11>: {univ.get_prob(3):.2f}")

# 🌊 Collapse the Wavefunction
# Measuring will force the universe into a single classical state
result = univ.measure_all()
print(f"Final Measurement: {result:02b}")

univ.print_state() # Print state after collapse

2. Execute

Terminal:

python3 script.py

UI Studio:

streamlit run app.py