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  • Titel: Noise-Tolerant Testing of High Entanglement of Formation
  • Beteiligte: Arnon-Friedman, Rotem [Verfasser:in]; Yuen, Henry [Verfasser:in]
  • Erschienen: Schloss Dagstuhl – Leibniz-Zentrum für Informatik, 2018
  • Sprache: Englisch
  • DOI: https://doi.org/10.4230/LIPIcs.ICALP.2018.11
  • Schlagwörter: quantum games ; noise tolerance ; entanglement testing ; device independence
  • Entstehung:
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  • Beschreibung: In this work we construct tests that allow a classical user to certify high dimensional entanglement in uncharacterized and possibly noisy quantum devices. We present a family of non-local games {G_n} that for all n certify states with entanglement of formation Omega(n). These tests can be derived from any bipartite non-local game with a classical-quantum gap. Furthermore, our tests are noise-tolerant in the sense that fault tolerant technologies are not needed to play the games; entanglement distributed over noisy channels can pass with high probability, making our tests relevant for realistic experimental settings. This is in contrast to, e.g., results on self-testing of high dimensional entanglement, which are only relevant when the noise rate goes to zero with the system's size n. As a corollary of our result, we supply a lower-bound on the entanglement cost of any state achieving a quantum advantage in a bipartite non-local game. Our proof techniques heavily rely on ideas from the work on classical and quantum parallel repetition theorems.
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