Computational advantage of quantum random sampling

D Hangleiter, J Eisert - Reviews of Modern Physics, 2023 - APS
Quantum random sampling is the leading proposal for demonstrating a computational
advantage of quantum computers over classical computers. Recently the first large-scale …

Demonstration of fault-tolerant steane quantum error correction

L Postler, F Butt, I Pogorelov, CD Marciniak, S Heußen… - PRX Quantum, 2024 - APS
Encoding information redundantly using quantum error-correcting (QEC) codes allows one
to overcome the inherent sensitivity to noise in quantum computers to ultimately achieve …

Ready to leap (by co-design)? join order optimisation on quantum hardware

M Schönberger, S Scherzinger… - Proceedings of the ACM on …, 2023 - dl.acm.org
The prospect of achieving computational speedups by exploiting quantum phenomena
makes the use of quantum processing units (QPUs) attractive for many algorithmic database …

Quantum advantage from any non-local game

Y Kalai, A Lombardi, V Vaikuntanathan… - Proceedings of the 55th …, 2023 - dl.acm.org
We show a general method of compiling any k-prover non-local game into a single-prover
(computationally sound) interactive game maintaining the same quantum completeness and …

QKSAN: A quantum kernel self-attention network

RX Zhao, J Shi, X Li - IEEE Transactions on Pattern Analysis …, 2024 - ieeexplore.ieee.org
The Self-Attention Mechanism (SAM) excels at distilling important information from the
interior of data to improve the computational efficiency of models. Nevertheless, many …

Depth-efficient proofs of quantumness

Z Liu, A Gheorghiu - Quantum, 2022 - quantum-journal.org
A proof of quantumness is a type of challenge-response protocol in which a classical verifier
can efficiently certify the $\textit {quantum advantage} $ of an untrusted prover. That is, a …

Trapped-ion quantum computer with robust entangling gates and quantum coherent feedback

T Manovitz, Y Shapira, L Gazit, N Akerman, R Ozeri - PRX quantum, 2022 - APS
Quantum computers are expected to achieve a significant speed-up over classical
computers in solving a range of computational problems. Chains of ions held in a linear Paul …

Preparing valence-bond-solid states on noisy intermediate-scale quantum computers

B Murta, PMQ Cruz, J Fernández-Rossier - Physical Review Research, 2023 - APS
Quantum state preparation is a key step in all digital quantum simulation algorithms. Here
we propose methods to initialize on a gate-based quantum computer a general class of …

Snapshotting quantum dynamics at multiple time points

P Wang, H Kwon, CY Luan, W Chen, M Qiao… - Nature …, 2024 - nature.com
Measurement-induced state disturbance is a major challenge in obtaining quantum statistics
at multiple time points. We propose a method to extract dynamic information from a quantum …

Simple tests of quantumness also certify qubits

Z Brakerski, A Gheorghiu… - Annual International …, 2023 - Springer
A test of quantumness is a protocol that allows a classical verifier to certify (only) that a
prover is not classical. We show that tests of quantumness that follow a certain template …