This program package helps modeling spin chains, qubit registers, etc. according to nonrelativistic quantum mechanics and some novel ideas from quantum information theory.
In particular, it contains MATLAB routines for reordering qubits, for computing the reduced density matrix after removing some of the qubits, for partial transposition, etc. Most of the routines work also for qudits. It also has routines for handling GHZ states, cluster states, graph states, Dicke states, etc.
See README.txt. See also http://gtoth.eu/qubit4matlab.html
Geza Toth (2020). QUBIT4MATLAB V5.7 (https://www.mathworks.com/matlabcentral/fileexchange/8433), MATLAB Central File Exchange. Retrieved November 19, 2020.
I want to know why my CVX cannot call the partialtranpose function as a constraint to solve a semidefinite programming problem.
great helpful for me
sorry forget give you a A!
Thank you very much!It's really helpful for me!
Excellent work Geza!!
I really need it. I hope to see the newer version soon.
It is timely for a freshman to find it!
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