Robert Koenig

Typical entanglement for Gaussian states

2019 · Journal of Mathematical Physics

We consider ensembles of bipartite states resulting from a random passive Gaussian unitary applied to a fiducial pure Gaussian state. We show that the symplectic spectra of the reduced density operators concentrate around that of …

Single-qubit gate teleportation provides a quantum advantage

2024 · Quantum

Gate-teleportation circuits are arguably among the most basic examples of computations believed to provide a quantum computational advantage: In seminal work \cite{TerhalDiVincenzo04}, Terhal and DiVincenzo have shown that these circuits elude simulation by efficient classical …