English

Temporal magnon-qubit Mach-Zehnder interferometer

Mesoscale and Nanoscale Physics 2026-02-24 v1 Quantum Physics

Abstract

A temporal magnon-qubit Mach-Zehnder (MZ) interferometer is proposed. The interferometer is based on controllable entanglement of a microwave qubit and a magnonic state, achieved by application of a pulsed magnetic field playing the role of a magnon-qubit temporal "beam splitter". Analogous to a typical MZ interferometer, the generated interference pattern of the final qubit population carries information about the magnon dynamics. One important application of the proposed scheme is the study of single magnon decoherence. Interestingly, this scheme allows one to independently determine rates of two possible decoherence channels. This may help enable single magnon state applications and answer fundamental questions of quasi-particle decoherence at single quantum levels.

Keywords

Cite

@article{arxiv.2602.19492,
  title  = {Temporal magnon-qubit Mach-Zehnder interferometer},
  author = {Cody Trevillian and Steven Louis and Vasyl Tyberkevych},
  journal= {arXiv preprint arXiv:2602.19492},
  year   = {2026}
}

Comments

5 pages, 4 figures

R2 v1 2026-07-01T10:46:51.210Z