Work

Composite Mølmer-Sørensen gate

Year: 2026

Type: article

Abstract: The Mølmer-Sørensen (MS) gate is a two-qubit controlled-phase gate in ion traps that is highly valued due to its ability to preserve the motional state of the ions. However, its fidelity is obstructed by errors affecting the motion of the ions as well as the rotation of the qubits. In this work, we propose an amplitude-modulated composite MS gate which features high fidelity robust to gate timing, detuning and coupling errors and is also tolerant of a.c. Stark shifts and drifting detuning errors.

Source: Physical Review Applied

DOI: 10.1103/66qf-fjy1

Authors: K.N. Zlatanov, S.S. Ivanov, N.V. Vitanov

Institutions: Bulgarian Academy of Sciences, Georgi Nadjakov Institute of Solid State Physics, Sofia University "St. Kliment Ohridski"

Language: English

Topic: Quantum Computing Algorithms and Architecture

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: European Commission, HORIZON EUROPE Framework Programme

Awards: G1919472709, G2566934999, G4188552653, G5636879153