Skip to main content

Quantum chemistry module for quantum computing with Qibo

Project description

Qibochem

Tests codecov DOI

Qibochem is a plugin to Qibo for quantum chemistry simulations.

Some of the features of Qibochem are:

  • General purpose Molecule class
    • PySCF for calculating the molecular 1- and 2-electron integrals
    • User defined orbital active space
  • Unitary Coupled Cluster Ansatz
  • Various Qibo backends (numpy, JIT, TN) for efficient simulation

Documentation

The Qibochem documentation can be found here

Minimum working example:

An example of building the UCCD ansatz with a H2 molecule

import numpy as np
from qibo.models import VQE

from qibochem.driver.molecule import Molecule
from qibochem.ansatz.hf_reference import hf_circuit
from qibochem.ansatz.ucc import ucc_circuit

# Define the H2 molecule and obtain its 1-/2- electron integrals with PySCF
h2 = Molecule([('H', (0.0, 0.0, 0.0)), ('H', (0.0, 0.0, 0.7))])
h2.run_pyscf()
# Generate the molecular Hamiltonian
hamiltonian = h2.hamiltonian()

# Build a UCC circuit ansatz for running VQE
circuit = hf_circuit(h2.nso, sum(h2.nelec))
circuit += ucc_circuit(h2.nso, [0, 1, 2, 3])

# Create and run the VQE, starting with random initial parameters
vqe = VQE(circuit, hamiltonian)

initial_parameters = np.random.uniform(0.0, 2*np.pi, 8)
best, params, extra = vqe.minimize(initial_parameters)

Citation policy

If you use the Qibochem plugin please refer to the documentation for citation instructions.

Contact

For questions, comments and suggestions please contact us at https://matrix.to/#/#qibo:matrix.org

Contributing

Contributions, issues and feature requests are welcome.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

qibochem-0.0.3.tar.gz (25.9 kB view hashes)

Uploaded Source

Built Distribution

qibochem-0.0.3-py3-none-any.whl (29.5 kB view hashes)

Uploaded Python 3

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page