1. Center for Brain-Inspired Computing Research (CBICR), Optical Memory National Engineering Research Center, and Department of Precision Instrument, Tsinghua University, Beijing 100084, China.
2. Institute of Theoretical Computer Science, Graz University of Technology, Graz, Austria.
3. IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China.
4. THU-CET HIK Joint Research Center for Brain-Inspired Computing, Tsinghua University, Beijing 100084, China.