Work

Probing anyonic statistics via Mach-Zehnder interferometry in quantum computers

Year: 2026

Type: article

Abstract: We introduce a synthetic Mach-Zehnder interferometer for digitized quantum computing devices to probe fractional exchange statistics of anyonic excitations that appear in quantum spin liquids. Employing an IonQ quantum computer, we apply this scheme to the toric ladder, a quasi-one-dimensional reduction of the toric code. We observe interference patterns resulting from the movement of `electric' excitations in the presence and absence of `magnetic' ones. We model the noise in IonQ via depolarizing Lindbladian dynamics, and find quantitative agreement with the measurements obtained from the quantum device. The synthetic Mach-Zehnder interferometer can thus also serve as an effective means to probe the coherence length and time scales of multi-qubit noisy quantum devices.

Source: Physical review. B./Physical review. B

DOI: 10.1103/mv95-hd77

Authors: Shiyu Zhou, Yi Teng, Claudio Chamon, Claudio Castelnovo, Armin Rahmani

Institutions: Boston University, Perimeter Institute, University of Cambridge, Purdue University West Lafayette, Western Washington University

Language: English

Topic: Quantum Computing Algorithms and Architecture

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green