19 citations · 23 across the 6 of their papers we have counts for
3 papers · 1 filter
Positivity is undecidable in tensor products of free algebras
Arthur Mehta, William Slofstra, Yuming Zhao
It is well known that an element of the algebra of noncommutative *-polynomials is positive in all *-representations if and only if it is a sum of squares. This provides an effecti…
Quantum delegation with an off-the-shelf device
Anne Broadbent, Arthur Mehta, Yuming Zhao
Given that reliable cloud quantum computers are becoming closer to reality, the concept of delegation of quantum computations and its verifiability is of central interest. Many mod…
An operator-algebraic formulation of self-testing
Connor Paddock, William Slofstra, Yuming Zhao +1
We give a new definition of self-testing for correlations in terms of states on -algebras. We show that this definition is equivalent to the standard definition for any class…