Results 1 to 10 of about 34 (34)
Optimization of a solid-state electron spin qubit using gate set tomography
New Journal of Physics, 2016 State of the art qubit systems are reaching the gate fidelities required for scalable quantum computation architectures. Further improvements in the fidelity of quantum gates demands characterization and benchmarking protocols that are efficient ...
Juan P Dehollain +10 more
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Operation of a planar-electrode ion-trap array with adjustable RF electrodes
New Journal of Physics, 2016 One path to realizing systems of trapped atomic ions suitable for large-scale quantum computing and simulation is to create a two-dimensional (2D) array of ion traps.
M Kumph +6 more
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Signal-based classical emulation of a universal quantum computer
New Journal of Physics, 2015 In this paper we present a novel approach to emulating a universal quantum computer with a classical system, one that uses a signal of bounded duration and amplitude to represent an arbitrary quantum state.
Brian R La Cour, Granville E Ott
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Pretty good state transfer of entangled states through quantum spin chains
New Journal of Physics, 2014 The XX model with uniform couplings represents the most natural choice for quantum state transfer through spin chains. Given that it has long been established that single-qubit states cannot be transferred with perfect fidelity in this model, the notion ...
Rúben Sousa, Yasser Omar
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Transport implementation of the Bernstein–Vazirani algorithm with ion qubits
New Journal of Physics, 2016 Using trapped ion quantum bits in a scalable microfabricated surface trap, we perform the Bernstein–Vazirani algorithm. Our architecture takes advantage of the ion transport capabilities of such a trap.
S D Fallek +5 more
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Universal control of ion qubits in a scalable microfabricated planar trap
New Journal of Physics, 2016 We demonstrate universal quantum control over chains of ions in a surface-electrode ion trap, including all the fundamental operations necessary to perform algorithms in a one-dimensional, nearest-neighbor quantum computing architecture.
C D Herold +6 more
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Dynamical decoupling sequences for multi-qubit dephasing suppression and long-time quantum memory
New Journal of Physics, 2016 We consider a class of multi-qubit dephasing models that combine classical noise sources and linear coupling to a bosonic environment, and are controlled by arbitrary sequences of dynamical decoupling pulses.
Gerardo A Paz-Silva +3 more
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Cryogenic surface ion trap based on intrinsic silicon
New Journal of Physics, 2014 Trapped ions are pre-eminent candidates for building quantum information processors and quantum simulators. To scale such systems to more than a few tens of ions it is important to tackle the observed high ion-heating rates and create scalable trap ...
Michael Niedermayr +6 more
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A quantum speedup in machine learning: finding an N-bit Boolean function for a classification
New Journal of Physics, 2014 We compare quantum and classical machines designed for learning an N -bit Boolean function in order to address how a quantum system improves the machine learning behavior. The machines of the two types consist of the same number of operations and control
Seokwon Yoo +3 more
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New Journal of Physics, 2016 By using transitionless quantum driving algorithm (TQDA), we present an efficient scheme for the shortcuts to the holonomic quantum computation (HQC). It works in decoherence-free subspace (DFS) and the adiabatic process can be speeded up in the shortest
Xue-Ke Song +4 more
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