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9 papers · 1 filter
Subsystem fault tolerance with the Bacon-Shor code
Panos Aliferis, Andrew W. Cross
We discuss how the presence of gauge sub-systems in the Bacon-Shor code [D. Bacon, Phys. Rev. A 73, 012340 (2006)] leads to remarkably simple and efficient methods for fault-tolera…
Impact Excitation by Hot Carriers in Carbon Nanotubes
Vasili Perebeinos, Phaedon Avouris
We investigate theoretically the efficiency of intra-molecular hot carrier induced impact ionization and excitation processes in carbon nanotubes. The electron confinement and redu…
Effective fault-tolerant quantum computation with slow measurements
David P. DiVincenzo, Panos Aliferis
How important is fast measurement for fault-tolerant quantum computation? Using a combination of existing and new ideas, we argue that measurement times as long as even 1,000 gate…
The Bounded Storage Model in The Presence of a Quantum Adversary
Robert Koenig, Barbara M. Terhal
An extractor is a function E that is used to extract randomness. Given an imperfect random source X and a uniform seed Y, the output E(X,Y) is close to uniform. We study properties…
Gap Domain Wall Fermions
Pavlos M. Vranas
I demonstrate that the chiral properties of Domain Wall Fermions (DWF) in the large to intermediate lattice spacing regime of QCD, 1 to 2 GeV, are significantly improved by adding…
The quantum capacity with symmetric side channels
Graeme Smith, John A. Smolin, Andreas Winter
We present an upper bound for the quantum channel capacity that is both additive and convex. Our bound can be interpreted as the capacity of a channel for high-fidelity quantum com…