104 citations · 127 across the 2 of their papers we have counts for
2 papers
quant-ph2004★ 23 cited
Compatibility of subsystem states
Paul Butterley, Anthony Sudbery, Jason Szulc
We examine the possible states of subsystems of a system of bits or qubits. In the classical case (bits), this means the possible marginal distributions of a probability distributi…
quant-ph2002★ 104 cited
One-qubit reduced states of a pure many-qubit state: polygon inequalities
A. Higuchi, A. Sudbery, J. Szulc
We show that a necessary and sufficient condition for a set of one-qubit mixed states to be the reduced states of a pure -qubit state is that their smaller eigenvalues shoul…