The Center for Quantum Nanoscience (QNS) at Ewha Womans University focuses on the exploration of the intersection of quantum science and Nanoscience. Quantum nanoscience is a rather broad field, encompassing many research areas including quantum materials, molecular magnetism, and the theory of open quantum systems. While all of nanoscience is intrinsically governed by quantum mechanics, the explicit use of the phenomena based on quantum-coherence such as superposition and entanglement has been rather limited to date.

QNS has a cutting-edge effort in quantum-coherent nanoscience and a complementary effort in quantum materials. The research field of quantum-coherent nanoscience is broad and encompasses work in molecular magnetism, point defects in insulators, dopants in semiconductors and much more. In a relatively short time, QNS has established itself as one of the leading players in quantum-coherent nanoscience, studying the quantum-coherent properties of atomic and molecular spins on well-defined surfaces. QNS’s host institution, Ewha Womans University, built a top-notch research building, fully customized to the needs of QNS’s research and has the lowest vibration levels in Korea and among the best in the world.

• - Exploring the quantum coherent manipulation of nanostructures on surfaces
• - Exploring and developing the use of single atoms and molecules as quantum bits for quantum computation using a ‘bottom-up approach’
• - Extending the achievement of full control of the quantum states to diverse atoms and molecules on clean surfaces and near interfaces in a variety of systems
• - Pioneering new techniques and developing equipment in the pursuit of these goals

• - World’s most stable single-atom magnets on surfaces consisting of dysprosium or holmium atoms
• - Electron spin resonance in scanning tunneling microscopy of single atomic and molecular spins on a surface
• - Electron-nuclear hyperfine interaction of individual atoms on a surface
• - Pulsed spin resonance of single qubits on a surface
• - Theory and experiment of double resonance spectroscopy of two coupled spins on a surface