39 citations · 183 across the 49 of their papers we have counts for
3 papers · 2 filters
Quantum magic squares: dilations and their limitations
Gemma De las Cuevas, Tom Drescher, Tim Netzer
Quantum permutation matrices and quantum magic squares are generalizations of permutation matrices and magic squares, where the entries are no longer numbers but elements from arbi…
Mixed states in one spatial dimension: decompositions and correspondence with nonnegative matrices
Gemma De las Cuevas, Tim Netzer
We study six natural decompositions of mixed states in one spatial dimension: the Matrix Product Density Operator (MPDO) form, the local purification form, the separable decomposit…
Separability for mixed states with operator Schmidt rank two
Gemma De las Cuevas, Tom Drescher, Tim Netzer
The operator Schmidt rank is the minimum number of terms required to express a state as a sum of elementary tensor factors. Here we provide a new proof of the fact that any biparti…