Bipartite Gaussian boson sampling naturally represents nonsymmetric directed graphs through matrix permanents. Its samples guide a genetic search for directed Hamiltonian cycles …
Symmetry reduces the verification of broad classes of entangled measurements to state-verification problems, yielding explicit protocols that require only local input states and …
An adaptive sequence of stabilizer gauges returns a certified fidelity interval, tightens it monotonically, and can outperform full stabilizer coverage for structured noise.
Sharp fourth-moment analysis gives rigorous worst-case costs for distributed overlap estimation with local Clifford measurements and benchmarks them against local Haar and …
The optimal query complexity for comparing two remote quantum channels is established. A nonadaptive, ancilla-free randomized protocol matches a lower bound that holds even for …