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mathwizard
  • Member for 4 years, 4 months
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When does a matrix subspace contain a full rank matrix?
Apr 2, 2021
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For which sets of linearly independent complex matrices does there exist a vector whose image set under the given matrices is linearly independent?
Mar 3, 2021
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8
What are examples of zero capacity quantum channels with Choi rank less than $d$?
8
Given a set of unitary matrices, can one find a vector whose images under these unitary matrices span the underlying Hilbert space?
6
Analyzing the composition of a channel with its adjoint in relation with an identical composition obtained for the channel's complement
5
Finding a class $C$ of bipartite PPT states such that entanglement of $\rho \in C$ implies entanglement of $\rho + \rho^{\Gamma}$
5
Does a quantum channel map the maximally mixed input state into an output state with maximal rank?