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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…