In this review, we introduce a develo** qubit platform: floating-electron-based qubits.
Electrons floating in a vacuum above the surface of liquid helium or solid neon emerge as …

Nonpolar atoms or molecules with low particle mass and weak inter-particle interactions can
form quantum liquids and solids (QLS) at low temperatures. Excess electrons naturally bind …

Progress towards the realization of quantum computers requires persistent advances in their
constituent building blocks—qubits. Novel qubit platforms that simultaneously embody long …

We present a blueprint for building a fault-tolerant quantum computer using the spin states of
electrons on the surface of liquid helium. We propose to use ferromagnetic micropillars to …

The in-plane motion of an electron on helium can couple to superconducting microwave
resonators via electrical dipole coupling, offering a robust and rapid readout scheme. In …

The generation and evolution of entanglement in many-body systems is an active area of
research that spans multiple fields, from quantum information science to the simulation of …

The image-charge detection provides a new direct method for the detection of the Rydberg
transition of electrons trapped on the surface of liquid helium. The interest in this method is …

The quantized lateral motional states and the spin states of electrons trapped on the surface
of superfluid helium have been proposed as basic building blocks of a scalable quantum …

Piezoelectric surface acoustic waves (SAWs) are powerful for investigating and controlling
elementary and collective excitations in condensed matter. In semiconductor two …

Single electrons trapped on solid-neon surfaces have recently emerged as a promising
platform for charge qubits. Experimental results have revealed their exceptionally long …