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Tensor Network Renormalisation
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Tensor Network Renormalisation

This contains some MATLAB scripts to perform the Tensor Network Renormalisation (TNR) algorithm. This is for a "Quantum Coffee" talk given at MPQ on the 17/03/2016. The algorithm was introduced by G. Evenbly and G. Vidal in the paper

G. Evenbly and G. Vidal, Phys. Rev. Lett. 115, 180405 (2015)

but the code is based on:

G. Evenbly, arXiv:1509.07484

Additional functions required to run the scripts here are:

ncon: R. N. C. Pfeifer, G. Evenbly, S. Singh, G. Vidal, arXiv:1402.0939.

netcon: R. N. C. Pfeifer, J. Haegeman, F. Verstraete, arXiv:1304.6112.

Both of which can be downloaded by selecting "other formats" and "download source" on arXiv.

Please note that this code is meant for illustrative purposes only and there is also a bug in it somewhere.

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