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Partial Trace of a MultiquDit System
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| Organization: | University of KwaZulu-Natal |
| Department: | School of Chemistry and Physics |
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2013-11-21
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For many situations in Quantum Information Theory it is necessary to trace out a subgroup of quDits from a larger group. For example, suppose Alice, Bob and Charlie each have a quDit with the total system described by a density matrix. If we would like to examine more closely the subsystem of quDits shared by just Alice and Bob we need to take the trace. However for large multi-quDit systems, calculating this by hand becomes quite unmanageable. What the dTraceSystem function does, is allow you to trace out an arbitrary number of quDits from a large system of N-quDits by getting Mathematica to do the work for you.
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Quantum Information, Density matrix, Trace, Partial Trace, Multi-quDit system, MultiquDit system, QuDit, Multi
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| Qudit_DensityTrace.nb (855.2 KB) - Mathematica Notebook |
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