Paper Limits on the storage of quantum information in a volume of space Steven T. Flammia, Jeongwan Haah, Michael J. Kastoryano, and Isaac H. Kim, Quantum 1, 4 (2017). We study the fundamental limits on the reliable storage of quantum information in lattices of qubits by deriving tradeoff bounds for approximate quantum error correcting codes. We introduce…
Paper Better local hidden variable models for two-qubit Werner states and an upper bound on the Grothendieck constant $K_G(3)$ Flavien Hirsch, Marco Túlio Quintino, Tamás Vértesi, Miguel Navascués, and Nicolas Brunner, Quantum 1, 3 (2017). We consider the problem of reproducing the correlations obtained by arbitrary local projective measurements on the two-qubit Werner state…
Paper The surface code with a twist Theodore J. Yoder and Isaac H. Kim, Quantum 1, 2 (2017). The surface code is one of the most successful approaches to topological quantum error-correction. It boasts the smallest known syndrome extraction circuits and correspondingly largest thres…
Paper Self-testing in parallel with CHSH Matthew McKague, Quantum 1, 1 (2017). Self-testing allows classical referees to verify the quantum behaviour of some untrusted devices. Recently we developed a framework for building large self-tests by repeating a smaller self-…