Quantum error mitigation

Z Cai, R Babbush, SC Benjamin, S Endo… - Reviews of Modern …, 2023 - APS
For quantum computers to successfully solve real-world problems, it is necessary to tackle
the challenge of noise: the errors that occur in elementary physical components due to …

[HTML][HTML] The variational quantum eigensolver: a review of methods and best practices

J Tilly, H Chen, S Cao, D Picozzi, K Setia, Y Li, E Grant… - Physics Reports, 2022 - Elsevier
The variational quantum eigensolver (or VQE), first developed by Peruzzo et al.(2014), has
received significant attention from the research community in recent years. It uses the …

Logical quantum processor based on reconfigurable atom arrays

D Bluvstein, SJ Evered, AA Geim, SH Li, H Zhou… - Nature, 2024 - nature.com
Suppressing errors is the central challenge for useful quantum computing, requiring
quantum error correction (QEC),,,–for large-scale processing. However, the overhead in the …

Quantum simulation for high-energy physics

CW Bauer, Z Davoudi, AB Balantekin, T Bhattacharya… - PRX quantum, 2023 - APS
It is for the first time that quantum simulation for high-energy physics (HEP) is studied in the
US decadal particle-physics community planning, and in fact until recently, this was not …

Entanglement of trapped-ion qubits separated by 230 meters

V Krutyanskiy, M Galli, V Krcmarsky, S Baier… - Physical Review Letters, 2023 - APS
We report on an elementary quantum network of two atomic ions separated by 230 m. The
ions are trapped in different buildings and connected with 520 (2) m of optical fiber. At each …

Demonstrating multi-round subsystem quantum error correction using matching and maximum likelihood decoders

N Sundaresan, TJ Yoder, Y Kim, M Li, EH Chen… - Nature …, 2023 - nature.com
Quantum error correction offers a promising path for performing high fidelity quantum
computations. Although fully fault-tolerant executions of algorithms remain unrealized …

Fault-tolerant operation of a logical qubit in a diamond quantum processor

MH Abobeih, Y Wang, J Randall, SJH Loenen… - Nature, 2022 - nature.com
Solid-state spin qubits is a promising platform for quantum computation and quantum
networks,. Recent experiments have demonstrated high-quality control over multi-qubit …

Perspective on the current state-of-the-art of quantum computing for drug discovery applications

NS Blunt, J Camps, O Crawford, R Izsák… - Journal of Chemical …, 2022 - ACS Publications
Computational chemistry is an essential tool in the pharmaceutical industry. Quantum
computing is a fast evolving technology that promises to completely shift the computational …

Beating the break-even point with a discrete-variable-encoded logical qubit

Z Ni, S Li, X Deng, Y Cai, L Zhang, W Wang, ZB Yang… - Nature, 2023 - nature.com
Quantum error correction (QEC) aims to protect logical qubits from noises by using the
redundancy of a large Hilbert space, which allows errors to be detected and corrected in real …

Universal quantum operations and ancilla-based read-out for tweezer clocks

R Finkelstein, RBS Tsai, X Sun, P Scholl, S Direkci… - Nature, 2024 - nature.com
Enhancing the precision of measurements by harnessing entanglement is a long-sought
goal in quantum metrology,. Yet attaining the best sensitivity allowed by quantum theory in …