Experimental and theoretical challenges for the trapped electron quantum computer

TL;DR

This paper reviews the experimental and theoretical challenges in developing a trapped electron quantum computer, focusing on trap design, qubit coupling, coherence times, and feasibility for scalable quantum information processing.

Contribution

It provides a comprehensive analysis of experimental setups, coupling methods, and coherence estimates, advancing the understanding of trapped electron quantum computing.

Findings

Feasibility of scalable trap schemes analyzed

Methods for coupling electron qubits discussed

Estimated qubit coherence times and implications provided

Abstract

We discuss quantum information processing with trapped electrons. After recalling the operation principle of planar Penning traps we sketch the experimental conditions to load, cool and detect single electrons. Here we present a detailed investigation of a scalable scheme including feasibility studies and the analysis of all important elements, relevant for the experimental stage. On the theoretical side, we discuss different methods to couple electron qubits. We estimate the relevant qubit coherence times and draw implications for the experimental setting. A critical assessment of quantum information processing with trapped electrons is concluding the article.