2D Materials for Quantum Science and Technology

Quantum technologies harness the principles of quantum mechanics to achieve functionalities and performances unattainable with classical approaches. These technologies have the potential to revolutionize fields ranging from secure communication and precision sensing to advanced computing. In this context, two-dimensional (2D) materials have emerged as a novel material platform for quantum state manipulation, introducing fresh prospects for innovation in quantum technology. With a diverse array of material properties and versatile fabrication techniques, these materials facilitate the creation of engineered quantum states. For instance, materials such as transition metal dichalcogenides, exemplified by WSe₂, allow for the coherent optical manipulation of valley degrees of freedom, paving the way for new quantum computing and information processing solutions. Defects in hexagonal boron nitride (hBN) are promising candidates as single-photon sources and robust quantum spin-photon interfaces that operate at room temperature. Josephson junctions based on van der Waals heterostructures hold great potential as superconducting qubits.

The diversity of 2D materials and their compatibility with existing electronic and photonic circuit designs open up expansive possibilities for the development of scalable quantum devices. This area of study is highly interdisciplinary, combining knowledge from engineering, condensed matter physics, quantum optics, quantum information science, materials science, and many others.

This Collection welcomes the following topics, including but not limited to:

Quantum Computing:

• Quantum dot, spin and valley qubits;
• Superconducting qubits and topological quantum computing elements;
• Coherent control of qubits;

Quantum Sensing and Metrology:

• Optically detected magnetic resonance of single defects;
• Superconducting quantum interference devices;

Quantum Communication:

• Single photon and entangled photon pair generation and detection;
• Quantum key distribution, quantum repeaters;
• Quantum photonic circuit integration;

Quantum Materials Engineering:

• Novel materials, heterostructures, moiré superlattices;
• Scalable synthesis and engineering methods for quantum dots and spin defects;
• Computational screening of quantum defects.