Trapped-ion quantum computing: Progress and challenges

CD Bruzewicz, J Chiaverini, R McConnell… - Applied Physics …, 2019 - pubs.aip.org
Trapped ions are among the most promising systems for practical quantum computing (QC).
The basic requirements for universal QC have all been demonstrated with ions, and …

Realizing repeated quantum error correction in a distance-three surface code

S Krinner, N Lacroix, A Remm, A Di Paolo, E Genois… - Nature, 2022 - nature.com
Quantum computers hold the promise of solving computational problems that are intractable
using conventional methods. For fault-tolerant operation, quantum computers must correct …

Focus beyond quadratic speedups for error-corrected quantum advantage

R Babbush, JR McClean, M Newman, C Gidney… - PRX quantum, 2021 - APS
In this perspective we discuss conditions under which it would be possible for a modest fault-
tolerant quantum computer to realize a runtime advantage by executing a quantum …

Variational fast forwarding for quantum simulation beyond the coherence time

C Cirstoiu, Z Holmes, J Iosue, L Cincio… - npj Quantum …, 2020 - nature.com
Trotterization-based, iterative approaches to quantum simulation (QS) are restricted to
simulation times less than the coherence time of the quantum computer (QC), which limits …

Layer VQE: A variational approach for combinatorial optimization on noisy quantum computers

X Liu, A Angone, R Shaydulin, I Safro… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Combinatorial optimization on near-term quantum devices is a promising path to
demonstrating quantum advantage. However, the capabilities of these devices are …

Digitization of scalar fields for quantum computing

N Klco, MJ Savage - Physical Review A, 2019 - APS
Qubit, operator, and gate resources required for the digitization of lattice λ ϕ 4 scalar field
theories onto quantum computers are considered, building upon the foundational work by …

Efficient parallelization of tensor network contraction for simulating quantum computation

C Huang, F Zhang, M Newman, X Ni, D Ding… - Nature Computational …, 2021 - nature.com
We develop an algorithmic framework for contracting tensor networks and demonstrate its
power by classically simulating quantum computation of sizes previously deemed out of …

Decoding quantum errors with subspace expansions

JR McClean, Z Jiang, NC Rubin, R Babbush… - Nature …, 2020 - nature.com
With rapid developments in quantum hardware comes a push towards the first practical
applications. While fully fault-tolerant quantum computers are not yet realized, there may …

Machine learning of noise-resilient quantum circuits

L Cincio, K Rudinger, M Sarovar, PJ Coles - PRX Quantum, 2021 - APS
Noise mitigation and reduction will be crucial for obtaining useful answers from near-term
quantum computers. In this work, we present a general framework based on machine …

Architecting noisy intermediate-scale trapped ion quantum computers

P Murali, DM Debroy, KR Brown… - 2020 ACM/IEEE 47th …, 2020 - ieeexplore.ieee.org
Trapped ions (TI) are a leading candidate for building Noisy Intermediate-Scale Quantum
(NISQ) hardware. TI qubits have fundamental advantages over other technologies such as …