Xiang Fu

Xiang Fu is a PhD student at QuTech, Delft University of Technology. He is now working on the control architecture over superconducting quantum processors under the joint supervision of Prof. Koen Bertels (promotor) from the quantum computer architecture lab and Dr. Leonardo DiCarlo (copromotor) from the quantum transport group in the Kavli Institue of Nanoscience.

Xiang Fu received his Bachelor's degree at Department of Electronic Engineering of Tsinghua University (THU) in July, 2011. Thereafter, he studied computer architecture, especially cache structure in College of Computer of National University of Defense Technology (NUDT) and received his Master's degree in July 2014.

Research

  • Quantum Computing
  • Quantum Instruction Set Architecture
  • Quantum microarchitecture

Projects

QuTech Control Box

This is a collaboration among the Quantum Computer Architecture lab, DiCarlo lab and Vandersypen lab, which starts from November 2014.

QuTech Control Box (CBox) is used to control superconducting-based or spin qubit-based quantum circuits. It consists of a Master Controller and three two-channel arbitrary waveform generators (AWG). The Master Controller implements the first version of the quantum microarchitecture QuMA, which supports QuMIS. It can perform measurement result discrimination for both transmon and spin qubits as well as data collection. The AWGs can generate analog waveforms to apply quantum operations on qubits based on a codeword-based event control scheme.

The following features highlights QuMA:

  • A codeword-based event control scheme
  • A queue-based event precise timing control at nanosecond level
  • Multilevel instruction decoding
  • A Quantum microinstruction set, QuMIS

A detailed description of QuMA can be found in this paper An Experimental Microarchitecture for a Superconducting Quantum Processor.

Central Controller Light

Central Controller-Light (CC-Light) is developed within QuTech to control experiments with the 7-qubit superconducting quantum processor. It implements the second verion of the QuMA microarchitecture to support a VLIW-based quantum instruction set architecture executable QASM (eQASM). 

QuMA-based Central Controller 

Central Controller-Light (CC-Light) is developed within QuTech to control experiments with the 17/49-qubit superconducting quantum processor.

Publication

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    2018

  1. X. Fu, M. A. Rol, C.C. Bultink, J. van Someren, N. Khammassi, I. Ashraf, R.F.L. Vermeulen, J. C. de Sterke, W.J. Vlothuizen, R. N. Schouten, C.G. Almudever, L. DiCarlo, K.L.M. Bertels, A Microarchitecture for a Superconducting Quantum Processor (to appear: June 2018), IEEE Micro, Top Picks from the 2017 Computer Architecture Conferences [Journal Paper]
  2. 2017

  3. X. Fu, M. A. Rol, C.C. Bultink, J. van Someren, N. Khammassi, I. Ashraf, R.F.L. Vermeulen, J. C. de Sterke, W.J. Vlothuizen, R.N. Schouten, C.G. Almudever, L. DiCarlo, K.L.M. Bertels, An Experimental Microarchitecture for a Superconducting Quantum Processor1693_an_experimental_microarchitecture_for_a_superconducting_qua.pdf (October 2017), 50th Annual IEEE/ACM International Symposium on Microarchitecture (MICRO 2017), 14-18 October 2017, Boston, USA, Best Paper Award [Conference Proceedings]
  4. L Riesebos, X. Fu, S. Varsamopulos, C.G. Almudever, K.L.M. Bertels, Pauli Frames for Quantum Computer Architectures (June 2017), 54th Design Automation Conference (DAC 2017), 18-22 June 2017, Austin USA [Conference Proceedings]
  5. L Riesebos, X. Fu, S. Varsamopulos, C.G. Almudever, K.L.M. Bertels, Pauli Frames for Quantum Computer Architectures (June 2017), 54th Design Automation Conference (DAC 2017), 18-22 June 2017, Austin USA [Conference Proceedings]
  6. M. A. Rol, C. C. Bultink, T. E. O'Brien, S. R. de Jong, L. S. Theis, X. Fu, F. Luthi, R. F. L. Vermeulen, J. C. de Sterke, A. Bruno, D. Deurloo, R. N. Schouten, F. K. Wilhelm, L. DiCarlo, Restless tuneup of high-fidelity qubit gates1697_restless_tuneup_of_highfidelity_qubit_gates.pdf (April 2017), Physical Review Applied (PRApplied) , volume 7, issue 4 [Journal Paper]
  7. C.G. Almudever, L. Lao, X. Fu, N. Khammassi, I. Ashraf, D. Iorga, S. Varsamopulos, C. Eichler, A. Wallraff, L. Geck, A. Kruth, J. Knoch, H. Bluhm, K.L.M. Bertels, The Engineering Challenges in Quantum Computing (March 2017), Design, Automation and Test in Europe (DATE 2017), 27-31 March 2017, Lausanne, Switzerland [Conference Proceedings]
  8. N. Khammassi, I. Ashraf, X. Fu, C.G. Almudever, K.L.M. Bertels, QX: A High-Performance Quantum Computer Simulation Platform (March 2017), Design, Automation and Test in Europe (DATE 2017), 27-31 March 2017, Lausanne, Switzerland [Conference Proceedings]
  9. 2016

  10. C.C. Bultink, M. A. Rol, T. E. O'Brien, X. Fu, B. C. S. Dikken, R.F.L. Vermeulen, J. C. de Sterke, A. Bruno, R. N. Schouten, L. DiCarlo, Active resonator reset in the nonlinear dispersive regime of circuit QED1696_active_resonator_reset_in_the_nonlinear_dispersive_regime_o.pdf (September 2016), Physical Review Applied (PRApplied) , volume 6, issue 3 [Journal Paper]
  11. X. Fu, L Riesebos, L. Lao, C.G. Almudever, F. Sebastiano, R. Versluis, E Charbon, K.L.M. Bertels, A Heterogeneous Quantum Computer Architecture1548_a_heterogeneous_quantum_computer_architecture.pdf (May 2016), Computing Frontiers (CF), 16-18 May 2016, Italy [Conference Paper]