Research
Hybrid qubits
Quantum bits, or ’qubits’, are at the heart of quantum computing, an entirely different paradigm in which information is encoded using the superposition states of individual quanta. In line with the fast development of superconducting qubit, our lab explores the possibility of using a variety of materials coupled to superconducting quantum circuits for quantum information processing. The integrated materials can be 2D materials or nanowires. Since 2017, Dr. Chiu has been leading a group in USTC to develop the relavant techniques in qubit fabrication and characterization. The aim is to untilize the unique properties and advantage of material to build a suitable qubit.
Majorana physics
When a topological material is coupled to superconductors, it is possible to host an excitation known as Majorana bound state. This system is not only interesting for its rich underlining physics but also for the possibility to perform braiding-based topological quantum computing. We explore the transport properties of Josephson junctions made of topological materials and superconductors. In the future, we are interested in combining the microwave techniques to read out the Majorana states.
Quantum dots
A quantum dot is an artificially structure where electrons can be confined within a scale of few tens of nanometers. Due to its small size, it holds the advantage for upscaling the qubits compared to other solid state platforms such as superconducting and ion trap systems. While the Si-based QDs have drawn much attention in this field, we explore the possibility of using layered material-based QDs to investigate the spin properties of confined electrons. The aim is to hunt spin blockade which is an important phenomenon for quantum information processing in QD systems.
