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- IBM Research - Thomas J. Watson Research CenterUS7 papers
- California Institute of TechnologyUS3 papers
- University of BristolGB3 papers
- Columbia UniversityUS2 papers
- IBM Research - AlmadenUS2 papers
- Kyoto UniversityJP2 papers
- Los Alamos National LaboratoryUS2 papers
- Stanford UniversityUS2 papers
- University of AmsterdamNL2 papers
- University of MichiganUS2 papers
- University of WaterlooCA2 papers
- Vassar CollegeUS2 papers
6 papers · 2 filters
Continuity of quantum channel capacities
Debbie Leung, Graeme Smith
We prove that a broad array of capacities of a quantum channel are continuous. That is, two channels that are close with respect to the diamond norm have correspondingly similar co…
The Fibonacci scheme for fault-tolerant quantum computation
Panos Aliferis, John Preskill
We rigorously analyze Knill's Fibonacci scheme for fault-tolerant quantum computation, which is based on the recursive preparation of Bell states protected by a concatenated error-…
Quantum Communication With Zero-Capacity Channels
Graeme Smith, Jon Yard
Communication over a noisy quantum channel introduces errors in the transmission that must be corrected. A fundamental bound on quantum error correction is the quantum capacity, wh…
Decoherence of floating qubits due to capacitive coupling
Matthias Steffen, Frederico Brito, David DiVincenzo +2
It has often been assumed that electrically floating qubits, such as flux qubits, are immune to decoherence due to capacitive coupling. We show that capacitive coupling to bias lea…
Fault-Tolerant Computing With Biased-Noise Superconducting Qubits
Panos Aliferis, Frederico Brito, David P. DiVincenzo +3
We present a universal scheme of pulsed operations for the IBM oscillator-stabilized flux qubit comprising the CPHASE gate, single-qubit preparations and measurements. Based on num…
Simulation of Many-Body Hamiltonians using Perturbation Theory with Bounded-Strength Interactions
Sergey Bravyi, David P. DiVincenzo, Daniel Loss +1
We show how to map a given n-qubit target Hamiltonian with bounded-strength k-body interactions onto a simulator Hamiltonian with two-body interactions, such that the ground-state…