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Characterization of Leakage Errors via Randomized Benchmarking
Joel J. Wallman, Marie Barnhill, Joseph Emerson
Leakage errors arise when the quantum state leaks out of some subspace of interest, for example, the two-level subspace of a multi-level system defining a computational `qubit' or…
Quantum Model Of Spin Noise
R. Annabestani, D. G. Cory, J. Emerson
Any ensemble of quantum particles exhibits statistical fluctuations known as spin noise. Here, we provide a description of spin noise in the language of open quantum systems. The d…
Contextuality supplies the magic for quantum computation
Mark Howard, Joel J. Wallman, Victor Veitch +1
Quantum computers promise dramatic advantages over their classical counterparts, but the answer to the most basic question "What is the source of the power in quantum computing?" h…