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Characterization of addressability by simultaneous randomized benchmarking.
- J. Gambetta, A. Córcoles, +9 authors M. Steffen
- Computer Science, Medicine
- Physical review letters
- 27 April 2012
We introduce a benchmarking protocol that provides information about the amount of addressability present in the system and implement it on coupled superconducting qubits with differing cross talk and unwanted qubit-qubit interactions. Expand
Unsupervised Machine Learning on a Hybrid Quantum Computer
Machine learning techniques have led to broad adoption of a statistical model of computing. The statistical distributions natively available on quantum processors are a superset of those available… Expand
Self-Consistent Quantum Process Tomography
Quantum process tomography is a necessary tool for verifying quantum gates and diagnosing faults in architectures and gate design. We show that the standard approach of process tomography is grossly… Expand
Robust decoupling techniques to extend quantum coherence in diamond.
We experimentally demonstrate over 2 orders of magnitude increase in the room-temperature coherence time of nitrogen-vacancy centers in diamond by implementing decoupling techniques. We show that… Expand
Efficient measurement of quantum gate error by interleaved randomized benchmarking.
- E. Magesan, J. Gambetta, +9 authors M. Steffen
- Computer Science, Physics
- Physical review letters
- 20 March 2012
We describe a scalable experimental protocol for estimating the average error of individual quantum computational gates and apply it to a superconducting qubit system. Expand
Implementing a strand of a scalable fault-tolerant quantum computing fabric.
With favourable error thresholds and requiring only nearest-neighbour interactions on a lattice, the surface code is an error-correcting code that has garnered considerable attention. At the heart of… Expand
Characterization and Control in Large Hilbert spaces.
- C. Ryan
- 3 December 2008
Computational devices built on and exploiting quantum phenomena have the potential to revolutionize our understanding of computational complexity by being able to solve certain problems faster than… Expand
Symmetrized Characterization of Noisy Quantum Processes
A major goal of developing high-precision control of many-body quantum systems is to realize their potential as quantum computers. A substantial obstacle to this is the extreme fragility of quantum… Expand
Experimental implementation of heat-bath algorithmic cooling using solid-state nuclear magnetic resonance
The counter-intuitive properties of quantum mechanics have the potential to revolutionize information processing by enabling the development of efficient algorithms with no known classical… Expand
Randomized benchmarking of single- and multi-qubit control in liquid-state NMR quantum information processing
Being able to quantify the level of coherent control in a proposed device implementing a quantum information processor (QIP) is an important task for both comparing different devices and assessing a… Expand