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computing.html
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computing.html
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<!DOCTYPE html>
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<meta name="description" content="J Robert Johansson" />
<meta name="keywords" content="physics, scientific computing, quantum, qubit, solid state" />
<meta name="author" content="J Robert Johansson" />
<title>J Robert Johansson</title>
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<li><a href="numericalpython.html">Numerical Python Book</a></li>
<li><a href="computing.html">Scientific computing</a></li>
<li><a href="research.html">Physics research</a></li>
</ul>
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<li><a href="http://github.com/jrjohansson">Github</a></li>
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<h1>Scientific computing projects</h1><br>
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</div>
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<p align="justify">
<a href="https://github.com/qutip/qutip"> <img src="images/qutip-logo.png" alt="QuTiP logo" style="float:left;"></a>
QuTiP is an open-source python framework for simulating the dynamics of quantum systems.
QuTiP is based on the excellent <a href="http://numpy.scipy.org/">Numpy</a> and <a
href="http://www.scipy.org/">Scipy</a> numerical packages, and graphical output is provided by <a
href="http://matplotlib.org/">Matplotlib</a>. QuTiP aims to provide user-friendly and efficient numerical
simulations of a wide variety of quantum mechanical problems commonly found in physics applications in fields
such as quantum optics, trapped ions, superconducting circuits, and quantum nanomechanical resonators.
</p>
<p align="justify">
More information and documentation is available at the <a href="http://qutip.org">QuTiP web page</a>, and at the
<a href="https://github.com/qutip">QuTiP github repositories</a>.
</p>
<p align="justify">
<a href="https://github.com/jrjohansson/wavefunction"> <img src="images/wavefunction.png" alt="Wavefunction logo" style="float:left;" width="150"> wavefunction </a>
is a Python package for calculating wavefunctions, energy levels, transition rates, etc., for 1 and 2 dimensional potentials. It includes examples for the harmonic oscillator, flux and current bias phase qubits, the Morse potential, and Flux qubits.
</p>
<p align="justify">
More information and documentation is available at the
<a href="https://github.com/jrjohansson/wavefunction">github repository</a>.
</p>
<h4>IPython extensions</h4>
<p align="justify">
Various extensions for use with the IPython notebook.
</p>
<ul>
<li><a href="http://github.com/jrjohansson/version_information">version_information</a>: An IPython
extension for showing version information for dependency modules. See the
<a href="http://nbviewer.ipython.org/github/jrjohansson/version_information/blob/master/example.ipynb">example notebook</a>
for installation and usage instructions.</li>
<li><a href="http://github.com/jrjohansson/ipython-circuitikz">ipython-circuitikz</a>:
An IPython extension for generating and displaying electrical circuit diagrams in the
IPython notebook, using LaTeX and the <a href="http://www.ctan.org/pkg/circuitikz">CircuiTikz</a> package. There is an
<a href="http://nbviewer.ipython.org/github/jrjohansson/ipython-circuitikz/blob/master/Circuitikz-examples.ipynb">example notebook</a> with installation and usage instructions.</li>
<li><a href="http://github.com/jrjohansson/ipython-asymptote">ipython-asymptote</a>:
An IPython extension for generating and displaying scientific figures in the
IPython notebook, using the <a href="http://asymptote.sourceforge.net/">Asymptote</a> vector graphics language. See the
<a href="http://nbviewer.ipython.org/github/jrjohansson/ipython-asymptote/blob/master/examples/asymptote_magic_examples.ipynb">example notebook</a> for details.</li>
</ul>
</div>
<div class="col-xs-4">
<a href="https://github.com/jrjohansson/qutip-lectures"><h4>Lectures on QuTiP</h4></a>
<p align="justify">
A series of computationally-oriented lectures on quantum mechanics and quantum optics using <a
href="http://qutip.org">QuTiP</a> and <a href="http://www.ipython.org">iPython notebooks</a>.
The notebooks can be downloaded from the <a href="https://github.com/jrjohansson/qutip-lectures">qutip-lectures</a> github repository (<a href="https://github.com/jrjohansson/qutip-lectures/archive/master.zip">ZIP</a>), or viewed online (read-only) using the links below.
The following topics are covered:
</p>
<ul>
<li>
<a href="http://raw.github.com/jrjohansson/qutip-lectures/blob/master/qutip-overview.pdf">
QuTiP overview</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-0-Introduction-to-QuTiP.ipynb">
Lecture-0 Introduction to QuTiP</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-1-Jaynes-Cumming-model.ipynb">
Lecture-1 Jaynes-Cumming model</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-2A-Cavity-Qubit-Gates.ipynb">
Lecture-2A Cavity-Qubit Gates</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-2B-Single-Atom-Lasing.ipynb">
Lecture-2B Single-Atom Lasing</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-3A-Dicke-model.ipynb">
Lecture-3A Dicke model</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-3B-Jaynes-Cumming-model-with-ultrastrong-coupling.ipynb">
Lecture-3B Jaynes-Cumming with ultrastrong coupling</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-4-Correlation-Functions.ipynb">
Lecture-4 Correlation Functions</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-5-Parametric-Amplifier.ipynb">
Lecture-5 Parametric Amplifier</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-6-Quantum-Monte-Carlo-Trajectories.ipynb">
Lecture-6 Quantum Monte Carlo Trajectories</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-7-iSWAP-gate.ipynb">
Lecture-7 iSWAP gate</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-8-Adiabatic-quantum-computing.ipynb">
Lecture-8 Adiabatic quantum computing</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-9-Squeezed-states-of-harmonic-oscillator.ipynb">
Lecture-9 Squeezed states of an harmonic oscillator</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-10-cQED-dispersive-regime.ipynb">
Lecture-10 cQED in the dispersive regime</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-11-Charge-Qubits.ipynb">
Lecture-11 Superconducting charge qubits</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-12-Decay-into-a-squeezed-vacuum-field.ipynb">
Lecture-12 Decay into a squeezed vacuum field</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-14-Kerr-nonlinearities.ipynb">
Lecture-14 Kerr nonlinearities</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-15-Nonclassically-driven-atoms.ipynb">
Lecture-15 Nonclassically driven atoms</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/qutip-lectures/blob/master/Lecture-16-Gallery-of-Wigner-functions.ipynb">
Lecture-16 Gallery of Wigner functions</a>
</li>
</ul>
<a href="https://github.com/jrjohansson/sympsi-notebooks"><h4>Symbolic quantum mechanics</h4></a>
<p align="justify">
IPython notebooks on symbolic quantum mechanics with <a href="http://www.sympy.org">SymPy</a> and <a href="http://github.com/sympsi/sympsi">SymPsi</a>. The notebooks are available from the <a href="https://github.com/jrjohansson/sympsi-notebooks">sympsi-notebooks</a> repository at github, and can
be view as static HTML pages via these links:
</p>
<ul>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/sympsi-notebooks/blob/master/lecture-sympsi-two-level-system.ipynb">Two-level systems</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/sympsi-notebooks/blob/master/lecture-sympsi-resonator.ipynb">Resonators and cavities</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/sympsi-notebooks/blob/master/lecture-sympsi-atom-cavity.ipynb">Atom-cavity systems</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/sympsi-notebooks/blob/master/lecture-sympsi-optomechanics.ipynb">Optomechanics</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/sympsi-notebooks/blob/master/lecture-sympsi-semiclassical-eqm.ipynb">Semiclassical equations of motion</a></li>
</ul>
<a href="https://github.com/jrjohansson/wavefunction"><h4>Wavefunction notebooks</h4></a>
<p align="justify">
IPython notebooks with examples for the
<a href="https://github.com/jrjohansson/wavefunction">wavefunction</a> python package.
More examples are available in the
<a href="https://github.com/jrjohansson/wavefunction">github repository</a>.
</p>
<ul>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/wavefunction/blob/master/Wavefunction-Harmonic-Oscillator.ipynb">Harmonic oscillator</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/wavefunction/blob/master/Wavefunction-Morse-Oscillator.ipynb">Morse oscillator</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/wavefunction/blob/master/Wavefunction-Phase-Qubit-Current-Biased.ipynb">Current-biased Phase Qubit</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/wavefunction/blob/master/Wavefunction-Phase-Qubit-Flux-Biased.ipynb">Flux-biased Phase Qubit</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/wavefunction/blob/master/Wavefunction-2D-Flux-Qubit.ipynb">Flux Qubit</a></li>
</ul>
</div>
<div class="col-xs-4">
<a href="https://github.com/jrjohansson/scientific-python-lectures"><h4>Lectures on scientific computing with Python</h4></a>
<p align="justify">
A series of lectures on scientific computing using python. The lectures are written as IPython notebooks, which means that you can interactively edit and run the code. Download the notebooks from the <a href="https://github.com/jrjohansson/scientific-python-lectures">scientific-python-lectures</a> github repository (<a href="https://github.com/jrjohansson/scientific-python-lectures/archive/master.zip">ZIP</a>), or browse them online (read-only) using the these links:
</p>
<p align="justify">
<ul>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/scientific-python-lectures/blob/master/Lecture-0-Scientific-Computing-with-Python.ipynb">
Lecture-0 Scientific Computing with Python</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/scientific-python-lectures/blob/master/Lecture-1-Introduction-to-Python-Programming.ipynb">Lecture-1 Introduction to Python Programming</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/scientific-python-lectures/blob/master/Lecture-2-Numpy.ipynb">Lecture-2 Numpy - multidimensional data arrays</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/scientific-python-lectures/blob/master/Lecture-3-Scipy.ipynb">Lecture-3 Scipy - Library of scientific algorithms</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/scientific-python-lectures/blob/master/Lecture-4-Matplotlib.ipynb">Lecture-4 Matplotlib - 2D and 3D plotting</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/scientific-python-lectures/blob/master/Lecture-5-Sympy.ipynb">Lecture-5 Sympy - Symbolic algebra</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/scientific-python-lectures/blob/master/Lecture-6A-Fortran-and-C.ipynb">Lecture-6A Fortran and C integration</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/scientific-python-lectures/blob/master/Lecture-6B-HPC.ipynb">Lecture-6B HPC</a>
</li>
<li>
<a href="http://nbviewer.ipython.org/github/jrjohansson/scientific-python-lectures/blob/master/Lecture-7-Revision-Control-Software.ipynb">Lecture-7 Revision Control Software</a>
</li>
</ul>
</p>
<a href="https://github.com/jrjohansson/reproduced-papers"><h4>Reproduced papers</h4></a>
<p align="justify">
A collection of IPython notebooks with reproduced numerical results (to varying degree of detail) for some interesting
papers. The notebooks are available for download at the
<a href="https://github.com/jrjohansson/reproduced-papers">reproduced-papers</a> github repository, and
can be previewed online using the following links:
</p>
<ul>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/reproduced-papers/blob/master/Reproduce-PRB-60-15398-1999-Orlando.ipynb">Orlando et al., Phys. Rev. B <em>60</em>, 15398 (1999)</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/reproduced-papers/blob/master/Reproduce-PRB-71-024532-2005-You.ipynb">You et al., Phys. Rev. B <em>71</em>, 024532 (2005)</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/reproduced-papers/blob/master/Reproduce-PRA-56-4175-1997-Bose.ipynb">Bose et al., Phys. Rev. A <em>56</em>, 4175 (1997)</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/reproduced-papers/blob/master/Reproduce-PRB-82-100507-2010-Schmidt.ipynb">Schmidt et al., Phys. Rev. B <em>82</em>, 100507 (2010)</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/reproduced-papers/blob/master/Reproduce-Nature-490-380-2012-Petersson.ipynb">Petersson et al., Nature 490, 380 (2012)</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/reproduced-papers/blob/master/Reproduce-PRA-87-043804-2013-Johansson.ipynb">Johansson et al., Phys. Rev. A <em>87</em>, 043804 (2013)</a></li>
<li><a href="http://nbviewer.ipython.org/github/jrjohansson/reproduced-papers/blob/master/Reproduce-SIAM-JCO-46-445-2007-Mirrahimi.ipynb">Mirrahimi et al., SIAM JCO <em>46</em>, 445 (2007)</a></li>
</ul>
<p>
See also
<a href="http://reproduced-papers.github.io">reproduced-papers.github.io</a>.
</p>
</div>
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