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QuantumPackage/index.html
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<meta name="description" content="Quantum Package is an open-source programming environment for quantum chemistry specially designed for wave function methods. Its main goal is the development of determinant-driven selected configuration interaction (sCI) methods and multi-reference second-order perturbation theory (PT2).
The determinant-driven framework allows the programmer to include any arbitrary set of determinants in the reference space, hence providing greater methodological freedoms. The sCI method implemented in Quantum Package is based on the CIPSI (Configuration Interaction using a Perturbative Selection made Iteratively) algorithm which complements the variational sCI energy with a PT2 correction.">
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The determinant-driven framework allows the programmer to include any arbitrary set of determinants in the reference space, hence providing greater methodological freedoms. The sCI method implemented in Quantum Package is based on the CIPSI (Configuration Interaction using a Perturbative Selection made Iteratively) algorithm which complements the variational sCI energy with a PT2 correction.">
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<h1>Quantum Package</h1>
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<span class="page-subheading">A programming environment for wave function methods</span>
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<p><em>Quantum Package</em> is an open-source programming environment for quantum
chemistry specially designed for wave function methods. Its main goal is the
development of determinant-driven selected configuration interaction (sCI)
methods and multi-reference second-order perturbation theory (PT2).</p>
<p>The determinant-driven framework allows the programmer to include any arbitrary
set of determinants in the reference space, hence providing greater
methodological freedoms. The sCI method implemented in <em>Quantum Package</em> is
based on the CIPSI (Configuration Interaction using a Perturbative Selection
made Iteratively) algorithm which complements the variational sCI energy with a
PT2 correction. Additional external plugins have been recently added to
perform calculations with multireference coupled cluster theory and
range-separated density-functional theory.</p>
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<li><a href="http://github.com/QuantumPackage/qp2/releases/latest">Download the source code</a></li>
<li><a href="https://quantum-package.readthedocs.io">Read the documentation</a></li>
<li><a href="https://quantumpackage.github.io/qp2/page/try">Try it now in your web browser</a></li>
</ul>
<hr />
<p><strong>Quantum Package 2.0: An Open-Source Determinant-Driven Suite of Programs</strong><br />
Yann Garniron, Thomas Applencourt, Kevin Gasperich, Anouar Benali, Anthony Ferté, Julien Paquier, Barthélémy Pradines, Roland Assaraf, Peter Reinhardt, Julien Toulouse, Pierrette Barbaresco, Nicolas Renon, Grégoire David, Jean-Paul Malrieu, Mickaël Véril, Michel Caffarel, Pierre-François Loos, Emmanuel Giner, Anthony Scemama<br />
<a href="https://doi.org/10.1021/acs.jctc.9b00176">J. Chem. Theory Comput. 2019, 15, 6, 3591-3609</a><br />
<a href="https://arxiv.org/abs/1902.08154">https://arxiv.org/abs/1902.08154</a></p>
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