Zhenyu Cai

Zhenyu Cai

Junior Research Fellow

St John's College

University of Oxford

How to say my name:


I am a Junior Research Fellow in Physics at St John’s College, Oxford. My research interests center around the practical implementations and applications of the noisy quantum computers that we will soon have.

I grew up in Shantou, a small coastal city in China renowned for its great food (and thus my passion for cooking). I finished my secondary education in Singapore before I went to Cambridge for my undergrad and subsequently Oxford for my PhD under the supervision of Simon Benjamin.


  • Quantum Error Correction
  • Quantum Error Mitigation
  • NISQ Applications


  • DPhil in Quantum Technologies

    Lincoln College, University of Oxford

    2017 - 2020

  • MSci & BA in Physics, First Class

    Trinity College, University of Cambridge

    2013 - 2017


Pipeline Quantum Processor Architecture for Silicon Spin Qubits

Quantum Error Mitigation

Quantum Error Mitigated Classical Shadows

Multicore Quantum Computing

Talks and Posters

Poster: Mitigating Coherent Noise Using Pauli Conjugation

International Conference on Emerging Quantum Technology

Talk: A silicon surface code architecture resilient to leakage errors

5th International Conference on Quantum Error Correction

Talk: Introducing twirling techniques and surface code simulations

Tsinghua University
Baidu Inc.
Beijing Computational Science Research Centre
Alibaba Group

Teaching Experience


Course Coordinating Tutor

Mathematical Institute, University of Oxford

Jan 2021 – Present Oxford, UK
Introduction to Quantum Information

Teaching Assistant

Mathematical Institute, University of Oxford

Jan 2020 – Mar 2020 Oxford, UK
Introduction to Quantum Information


Trinity College, University of Oxford

Oct 2019 – Dec 2019 Oxford, UK
Fourier Analysis and Partial Differential Equations

Private Tutor

Jan 2013 – Jun 2013 Singapore
O-level and A-level Maths and Science

Awards and Prizes

Junior Research Fellowship in Physics

Senior Scholar

Industrially-funded Graduate Studentship

Senior Scholar

Cambridge Overseas Trust Scholarship

Trinity Overseas Bursary

Singapore SM1 Scholarship










Technical Skills









Other Research Experience



Artificial Intelligence Group, Computer Laboratory, University of Cambridge

Nov 2016 – May 2017 Cambridge, UK

  • Built a multiplex artificial neural networks for breast cancer diagnosis using genetic data.
  • Sparsified the structure of the artificial neural network using symmetry arguments.

Research Intern

Astrophysics Group, Cavendish Laboratory, University of Cambridge

Aug 2016 – Oct 2016 Cambridge, UK

  • Built a data reduction package for fringe tracker data in interferometers using python.
  • Used the fringe tracker data along with the main data of the observations of α Mira variable o Cet to probe its shape.

Research Intern

AMOP Group, Cavendish Laboratory, University of Cambridge

Jun 2015 – Aug 2015 Cambridge, UK

  • Simulated 1D GPE with movable wall using python.
  • Built a movable laser wall for an atom trap.

Research Intern

Device Materials Group, Department of Materials, University of Cambridge

Jun 2014 – Aug 2014 Cambridge, UK

  • Simulated the hysteresis behaviours using python.
  • Modelled hysteresis of Ni/Gd tri-layers at different temperatures and thicknesses.


  • St Giles', Oxford, OX1 3JP