Context

Quantum technology faces challenges in achieving scalability, coherence, and connectivity, particularly with the current reliance on superconducting or semiconducting qubits. While photon-based flying qubits offer promise, their rapid propagation and weak photon-photon interactions limit real-time manipulation. As the demand for more efficient quantum systems grows, a new approach is needed.

The EU-funded ELEQUANT project will focus on flying charge qubits, leveraging electronic charges for enhanced scalability and connectivity. By exploring the manipulation of electronic wavepackets in semiconductor nanostructures, ELEQUANT aims to achieve high-fidelity flying charge qubits and demonstrate entanglement.

Aim of the project and specific objectives

ELEQUANT project proposes a paradigm shift from the mainstream superconductor or semiconductor quantum technology approach by exploiting flying electrons as qubits. Through pioneering research in the generation and manipulation of ultrashort electronic wavepackets in semiconductor nanostructures, the project strives to achieve the ambitious goal of realizing high-fidelity flying charge qubits and demonstrating entanglement between them.

Key objectives include the development of novel quantum materials platforms based on strained germanium and multi-layered graphene, alongside advancements in quantum nanoelectronics at terahertz frequencies to address coherence challenges effectively

By establishing a comprehensive roadmap for solid-state flying qubit technology, ELEQUANT seeks to accelerate innovation in quantum technology and foster collaborative partnerships with industry stakeholders on a European scale. With a focus on scalability, connectivity, and coherence, ELEQUANT aims to propel quantum technology into a new era of unprecedented capabilities and applications.

Figure Project Roadmap

Acknowledgement

ELEQUANT Project has received funding from the European Innovation Council and SMEs Executive Agency under Grant Agreement # 101185712.

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