About QNS

QNS pushes the boundaries of quantum science by harnessing Spins on Surfaces at the atomic scale—a platform that offers reproducible, atomically precise quantum systems. Our fundamental research is building the essential library of quantum behavior at the atomic scale, which will enable future breakthroughs across the entire spectrum of quantum science and technology.

In the eight years since its inception, QNS has emerged as a leading contributor in the global quantum research ecosystem. Starting from scratch, we have developed at an unprecedented pace, constructing a state-of-the-art facility, designing cutting-edge instrumentation, and assembling a world-class research team. Our unique focus on Spins on Surfaces at the atomic scale has driven transformative advancements in quantum science.

Key Achievements and Unique Contributions

  1. Novel Qubit Platform: Introduced surface atomic spins as a new qubit implementation, demonstrating coherent control and readout of 2 and 3 qubit devices. This “First Korean Qubit” breakthrough garnered global attention and impacted the Korean stock market. (Science 382, 87 (2023))
  2. Atomic-Resolution in Quantum Sensing: Developed a mobile quantum sensor with unprecedented spatial resolution below 0.1nm, about one thousand times better than conventional NV sensors, opening new frontiers in quantum metrology. (Nature Nanotechnology 19, 1466 (2024))
  3. Quantum-coherent Transport Simulation: Created a comprehensive theory for ESR-STM, providing open-source simulation tools that have become standard resources in the field. (Phys. Rev. B, 107, 235404 (2023), Phys. Rev. B, 100, 035411 (2019))
  1. Rare Earth Advancement: Achieved all-electric coherent control of 4f electrons in lanthanide atoms on surfaces, offering a transformative approach to address quantum communication challenges at the atomic scale. (Phys. Rev. B 107, 045427 (2023) & Nature Communications 15, 5289 (2024)
  2. ESR-STM of Molecules: Expanded ESR-STM to molecules, sparking a wave of molecular ESR-STM studies worldwide and establishing QNS as a trendsetter in molecular quantum science. (Nature Chemistry 14, 59 (2022))
  3. Coherent Control of Surface Qubits: Demonstrated full coherent control of surface spins, providing foundational techniques for researchers exploring surface-based quantum systems. (Science 366, 509 (2019), ACS Nano 15, 11 (2021), npj Quantum Information 9, 48 (2023))
  4. Defining Quantum Nanoscience: Led a global collaboration to formally define quantum-coherent nanoscience, shaping the direction of research and becoming the standard reference for researchers, funding agencies, and policymakers worldwide. (Nature Nanotechnology 16, 1318 (2021)

Our Vision

To advance quantum science and technology by mastering Spins on Surfaces at the atomic scale, unlocking fundamental quantum behaviors to enable future breakthroughs across diverse applications.

…one spin
at a time

QNS in Numbers