Dilution refrigerator with superconducting magnet and microwave lines

点击翻译按钮获取中文摘要

Based on the concepts arising from the mathematical discipline of topology, topological materials promise to realize new states of matter with exotic, but robust properties. They also provide a support system to encode information non-locally in ‘topological quantum bits’ robust to local perturbations. The emerging ‘topological quantum computation’ is as such an envisioned solution to decoherence problems in the realization of quantum computers. The implementation of such topological quantum bits remains however an experimental challenge. It relies on highly engineered nanodevices adequately combining topological phases, superconductivity and magnetism. The planned dilution refrigerator system is an essential tool for the developments of topological devices, and in particular quantum bits. The planned major instrument will be used for cooling down samples of topological devices combining high-quality topological insulators and superconductors at ultra-low temperature. The system will then allow for the measurements of these samples in strong magnetic fields, and in all directions of space (vector magnet). The objectives are to identify, trigger, control and manipulate topological excitations in robust topological phases of matter, such as the quantum anomalous effect.