Quantum error mitigated classical shadows

H Jnane, J Steinberg, Z Cai, HC Nguyen, B Koczor - PRX Quantum, 2024 - APS
Classical shadows enable us to learn many properties of a quantum state ρ with very few
measurements. However, near-term and early fault-tolerant quantum computers will only be …

Group-theoretic error mitigation enabled by classical shadows and symmetries

A Zhao, A Miyake - npj Quantum Information, 2024 - nature.com
Estimating expectation values is a key subroutine in quantum algorithms. Near-term
implementations face two major challenges: a limited number of samples required to learn a …

Tailored and externally corrected coupled cluster with quantum inputs

M Scheurer, GLR Anselmetti, O Oumarou… - Journal of Chemical …, 2024 - ACS Publications
We propose to use wave function overlaps obtained from a quantum computer as inputs for
the classical split-amplitude techniques, tailored and externally corrected coupled cluster, to …

Programmable simulations of molecules and materials with reconfigurable quantum processors

N Maskara, S Ostermann, J Shee, M Kalinowski… - Nature Physics, 2025 - nature.com
Simulations of quantum chemistry and quantum materials are believed to be among the
most important applications of quantum information processors. However, realizing practical …

Quantum Information Processing, Sensing, and Communications: Their Myths, Realities, and Futures

L Hanzo, Z Babar, Z Cai, D Chandra… - Proceedings of the …, 2025 - ieeexplore.ieee.org
The recent advances in quantum information processing, sensing, and communications are
surveyed with the objective of identifying the associated knowledge gaps and formulating a …

Classical and quantum cost of measurement strategies for quantum-enhanced auxiliary field quantum monte carlo

M Kiser, A Schroeder, GLR Anselmetti… - New Journal of …, 2024 - iopscience.iop.org
Quantum-enhanced auxiliary field quantum Monte Carlo (QC-AFQMC) uses output from a
quantum computer to increase the accuracy of its classical counterpart. The algorithm …

Probabilistic interpolation of quantum rotation angles

B Koczor, JJL Morton, SC Benjamin - Physical Review Letters, 2024 - APS
Quantum computing requires a universal set of gate operations; regarding gates as
rotations, any rotation angle must be possible. However a real device may only be capable …

Sparse probabilistic synthesis of quantum operations

B Koczor - arXiv preprint arXiv:2402.15550, 2024 - arxiv.org
Successful implementations of quantum technologies require protocols and algorithms that
use as few quantum resources as possible. However, many important quantum operations …

Can shallow quantum circuits scramble local noise into global white noise?

J Foldager, B Koczor - Journal of Physics A: Mathematical and …, 2023 - iopscience.iop.org
Shallow quantum circuits are believed to be the most promising candidates for achieving
early practical quantum advantage—this has motivated the development of a broad range of …

Real classical shadows

M West, AA Mele, M Larocca, M Cerezo - arXiv preprint arXiv:2410.23481, 2024 - arxiv.org
Efficiently learning expectation values of a quantum state using classical shadow
tomography has become a fundamental task in quantum information theory. In a classical …