L’école est organisée sur trois jours intensifs et comprendra des cours frontaux (environ 18 heures) ainsi que des exercices et des sessions de Questions & Réponses (environ 3 heures) dispensés par des intervenants locaux, nationaux et internationaux. Les cours seront présentés en anglais.
Liste des intervenants :
Pr. Vincent Robert (LCQ, Université de Strasbourg & CNRS)
Pr. Stefan Haacke (IPCMS-DON, Université de Strasbourg & CNRS)
Dr. Chantal Daniel (LCQ, Université de Strasbourg & CNRS)
Pr. Lorenzo Di Bari (Dept. of Chemistry, University of Pisa, Italie)
Pr. Ally Aukauloo (ICMMO, Université Paris-Saclay)
Dr. Pascal Didier (Faculté de Pharmacie, Université de Strasbourg & CNRS)
Pr. Federico Polo (DMSN, Ca’ Foscari University of Venice, Italie)
Dr. Giulio Ragazzon (ISIS, Université de Strasbourg & CNRS)
Dr. Alberto Barsella (IPCMS-DON, Université de Strasbourg & CNRS)
Dr. Loïc Mager (IPCMS-DON, Université de Strasbourg & CNRS)
Dr. Jérémie Léonard (IPCMS-DON, Université de Strasbourg & CNRS)
Dr. Matteo Mauro (IPCMS-DMO, Université de Strasbourg & CNRS)
Center for Quantum Nanoscience, Institute for Basic Science (IBS) Department of Physics, Ewha Womans University Seoul, Republic of Korea
Résumé:
There is a strong international research effort in the area of quantum information science. Here, the concepts of quantum coherence, superposition and entanglement of quantum states are exploited. These concepts were originally shown with photons as well as atoms and ions in vacuum traps. Over the past two decades, many advances at studying such quantum coherence in solid-state and molecular architectures have evolved [1]. In this talk we will focus on quantum-coherent experiments in Scanning Tunneling Microscopy (STM). STM enables the study of surfaces with atomic-scale spatial resolution and offers the ability to study individual atoms and molecules on surfaces. Here at Ewha, we have one of the world’s best facilities for such studies. STM can also be used to move atoms with atomic-scale precision, which enables us to build engineered nanostructures where each atom is in the exactly correct place. In order to study qubits with STM, we recently learned how to combine STM with electron spin resonance [2,3]. Spin resonance gives us the means to quantum-coherently control an individual atomic or molecular spin on a surface. Using short pulses of microwave radiation further enables us to perform qubit rotations and learn about the quantum coherence times of our spins [4]. Finally, we will finish with unpublished results on multi-qubit operations with spins on surfaces. 1. Andreas J. Heinrich, William D. Oliver, Lieven M. K. Vandersypen, Arzhang Ardavan, Roberta Sessoli, Daniel Loss, Ania Bleszynski Jayich, Joaquin Fernandez-Rossier, Arne Laucht, Andrea Morello, “Quantum-coherent nanoscience”, Nature Nanotechnology, 16, 1318-1329 (2021). 2. Susanne Baumann, William Paul, Taeyoung Choi, Christopher P. Lutz, Arzhang Ardavan, Andreas J. Heinrich, “Electron Paramagnetic Resonance of Individual Atoms on a Surface”, Science 350, 417 (2015). 3. Yi Chen, Yujeong Bae, Andreas Heinrich, “Harnessing the Quantum Behavior of Spins on Surfaces”, Advanced Materials 2022, 2107534 (2022). 4. Kai Yang, William Paul, Soo-Hyon Phark, Philip Willke, Yujeong Bae, Taeyoung Choi, Taner Esat, Arzhang Ardavan, Andreas J. Heinrich, and Christopher P. Lutz, “Coherent spin manipulation of individual atoms on a surface”, Science 366, 509 (2019).
Support from Institute for Basic Science (IBS-R027-D1) is gratefully acknowledged
