SPDX-FileCopyrightText: Copyright (C) 2011-2019, 2022 Frank C Langbein frank@langbein.org, Cardiff University
SPDX-FileCopyrightText: Copyright (C) 2011-2019, 2022 Sophie M Shermer lw1660@gmail.com, Swansea University
SPDX-FileCopyrightText: Copyright (C) 2011-2019 Edmond Jonckheere, University of Southern California
SPDX-FileCopyrightText: Copyright (C) 2022 Sean P O'Neil, US Army
SPDX-License-Identifier: AGPL-3.0-or-later
Matlab code for quantum spin-1/2 networks. It provides code to analyse the geometry of such networks, and some basic quantum control and characterisation code. Details are described in these papers:
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F. C. Langbein, S. G. Schirmer, E. Jonckheere. Time optimal information transfer in spintronics networks. Proc. IEEE 54th Annual Conference on Decision and Control (CDC), pp. 6454-6459, Osaka, Japan, December 15-18, 2015. DOI:10.1109/CDC.2015.7403236 arXiv:1508.00928 https://langbein.org/langbein2015/
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E. Jonckheere, F. C. Langbein, S. G. Schirmer. Information Transfer Fidelity in Spin Networks and Ring-based Quantum Routers. Quantum Information Processing, 14(12):4761-4785, 2015. DOI:10.1007/s11128-015-1136-4 arXiv:1408.3765 https://langbein.org/jonckheere2015/
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S. G. Schirmer, F. C. Langbein. Characterization and Control of Quantum Spin Chains and Rings. In: Proc. 6th Int Symp Communications, Control and Signal Processing (ISCCSP), pp. 615 - 619, May 2014. DOI:10.1109/ISCCSP.2014.6877950 arXiv:1403.0226 https://langbein.org/schirmer2014/
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E. Jonckheere, F. C. Langbein, S. Schirmer. Quantum networks: Anti-core of spin chains. Quantum Information Processing. 13(7):1607- 1637, 2014. DOI:10.1007/s11128-014-0755-5 arXiv:1403.0159 https://langbein.org/jonckheere2014/
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E. Jonckheere, F. C. Langbein, S. G. Schirmer. Curvature of quantum rings. In: Proc. 5th Int Symp Communications Control and Signal Processing (ISCCSP), pp. 1-6, 2012. DOI:10.1109/ISCCSP.2012.6217863 arXiv:1202.2556 https://langbein.org/jonckheere2012/
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E Jonckheere, S G Schirmer, F C Langbein. Geometry and Curvature of Spin Networks. IEEE International Conference on Control Applicatons, pp. 786-791, 2011. DOI:10.1109/CCA.2011.6044395 arXiv:1102.3208 https://langbein.org/jonckheere2011/
To get started, go to the base directory of the package and run
setup('build') from matlab (to compile the code and extend the
path. Runnning setup() without arguments only adds the paths.
Most functionality is provided via the qsn class. See help qsn
and the help text for the relevant classes (help qsn.QSN, etc.)
for further information on how to use the code. The example_*
scripts provide some examples for how to use the code. All this code is
in the +qsn matlab pacakge directory.
The timing directory contains timing estimation code for
reference [2] above.
The following matlab packages have been adapted for this package and
are in the @kde and GA sub-directory respectively:
GA - Alan de Freitas, Open Genetic Algorithm Toolbox, 2012. Creative Commons Attribution Non-Commercial License V2.0 https://sourceforge.net/projects/gatoolbox/
@kde - Alexander Ihler, KDE Package, 2003. GNU Lesser General Public License V2.1 https://www.ics.uci.edu/~ihler/code/kde.html
The code is developed and maintained on qyber\black at https://qyber.black/spinnet/code-matspinnet
This code is mirrored at
The mirrors are only for convenience, accessibility and backup.
- Frank C Langbein, School of Computer Science and Informatics, Cardiff University; langbein.org
- Sophie M Shermer, Physics, Swansea University
- Edmond Jonckheere, Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California
- Sean P O'Neil, Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California and US Army.
For any general enquiries relating to this project, send an e-mail.
FC Langbein, SM Shermer, Sean P O'Neil, EA Jonckheere. MatSpinNet. Version 1.1 FigShare, Software. December 2022. [DOI:10.6084/m9.figshare.21856911] [DEV:https://qyber.black/spinnet/code-matspinnet] [MIRROR:https://github.com/qyber-black/Code-MatSpinNet]