Year: 2026
Type: article
Abstract: Probabilistic error cancellation is an attempt to reverse the effect of dissipative noise channels on quantum computers by applying unphysical channels after the execution of a quantum algorithm on noisy hardware. We investigate on general grounds the properties of such unphysical quantum channels by considering a random matrix ensemble modeling noisy quantum algorithms. We show that the complex spectra of denoiser channels inherit their structure from random Lindbladians. Additional structure imposed by the locality of noise channels of the quantum computer emerges in terms of a hierarchy of timescales.
Source: Physical Review A
DOI: 10.1103/5q85-fp2p
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
Awards: G1454008454, TRR 185: OSCAR Kontrolle atomarer und photonischer Quantenmaterie durch maßgeschneiderte Kopplung an Reservoire, G3979371216, G434337789, QuantERA II ERA-NET Cofund in Quantum Technologies, G6973187070, Mittelfristiges Quantenrechnen aus der Perspektive des Dissipativen Quantenchaos, G7613874394, G807113503, SFB 1639: NuMeriQS: Numerische Methoden zur Untersuchung von Dynamik und Strukturbildung in Quantensystemen
OpenAlex ID: W4416968969