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Practical Quantum Error Mitigation for Near-Future Applications
Suguru Endo, Simon C. Benjamin, Ying Li
It is vital to minimise the impact of errors for near-future quantum devices that will lack the resources for full fault tolerance. Two quantum error mitigation (QEM) techniques ha…
Measurement-driven quantum computing: Performance of a 3-SAT solver
Simon C. Benjamin, Liming Zhao, Joseph F. Fitzsimons
We investigate the performance of a quantum algorithm for solving classical 3-SAT problems. A cycle of post-selected measurements drives the computer's register monotonically towar…
Quantum metrology beyond the classical limit under the effect of dephasing
Yuichiro Matsuzaki, Simon Benjamin, Shojun Nakayama +2
Quantum sensors have the potential to outperform their classical counterparts. For classical sensing, the uncertainty of the estimation of the target fields scales inversely with t…
An integrity measure to benchmark quantum error correcting memories
Xiaosi Xu, Niel de Beaudrap, Joe O'Gorman +1
Rapidly developing experiments across multiple platforms now aim to realise small quantum codes, and so demonstrate a memory within which a logical qubit can be protected from nois…
A measurement driven analog of adiabatic quantum computation for frustration-free Hamiltonians
Liming Zhao, Carlos A. Perez-Delgado, Simon C. Benjamin +1
The adiabatic quantum algorithm has drawn intense interest as a potential approach to accelerating optimization tasks using quantum computation. The algorithm is most naturally rea…
Assessing the progress of trapped-ion processors towards fault-tolerant quantum computation
A. Bermudez, X. Xu, R. Nigmatullin +12
A quantitative assessment of the progress of small prototype quantum processors towards fault-tolerant quantum computation is a problem of current interest in experimental and theo…
Entanglement Distillation between Solid-State Quantum Network Nodes
Norbert Kalb, Andreas A. Reiserer, Peter C. Humphreys +7
The potential impact of future quantum networks hinges on high-quality quantum entanglement shared between network nodes. Unavoidable real-world imperfections necessitate means to…
One-dimensional quantum computing with a 'segmented chain' is feasible with today's gate fidelities
Ying Li, Simon C. Benjamin
In principle a 1D array of nearest-neighbour linked qubits is compatible with fault tolerant quantum computing. However such a restricted topology necessitates a large overhead for…