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Faculty of Mathematics



  • 2020-: Royal Society University Research Fellow, DAMTP, University of Cambridge
  • 2017-2019: Leverhulme Early Career Fellow, DAMTP, University of Cambridge
  • 2013-: John and Delia Agar Research Fellow, Sidney Sussex College, University of Cambridge
  • 2009-2013: PhD, Trinity College, University of Cambridge. Supervisor: Jonathan Oppenheim.


Sergii is a member of the Department of Applied Mathematics and Theoretical Physics and Centre for Quantum Information and Foundations. His current research interests are Quantum Computation and Quantum Information.

I'm looking for two highly-motivated qualified postdocs to work on quantum algorithms for computational genomics in relation to Wellcome Leap's "Human and Pathogen Quantum Pangenomics" project.

Together with Tom Gur I am co-organizing Cambridge-Warwick Quantum Computing Colloquium 

I'm leading the following projects:


Postdoctoral research associates

Subhayan Roy Moulik (2023-)

Carolin Wille (2023-)

Davi Castro Silva (2024-) [co-supervising with Anuj Dawar and Tom Gur)

PhD students

Mitchell Chiew (2020-)

Wilfred Salmon (2021-) [Jointly with Hitachi Cambridge Laboratory]

Josh Cudby (2022-)

Orson Ye (2023-) [MPhil student]

Summer research students

Chenguang Guan (co-supervised jointly with Laurens Lootens)

Tejas Archarya (co-supervised jointly with Bipasha Chakraborty)

Adam Wills 

Former members 

Thorsten Wahl (2022-2023)


my arXiv preprints are available here.

Selected Publications

  • T. Wahl, S. Strelchuk "Simulating quantum circuits using efficient tensor network contraction algorithms with subexponential upper bound", Phys. Rev. Lett. 131, 180601 (2023).
  • H. Zheng, Z. Li, J. Liu, S. Strelchuk, R. Kondor "Speeding up learning quantum states through group equivariant convolutional quantum Ansatze", PRX Quantum 4, 020327 (2023) 
  • D. Stilck França, S. Strelchuk, M. Studziński, "Efficient classical simulation and benchmarking of quantum processes in the Weyl basis", Phys. Rev. Lett.126, 210502 (2021)
  • M. Hebenstreit, R. Jozsa, B. Kraus, S. Strelchuk, and M. Yoganathan, "All Pure Fermionic Non-Gaussian States Are Magic States for Matchgate Computations", Phys. Rev. Lett. 123, 080503 (2019)
  • V. Havlicek, S. Strelchuk "Quantum Schur sampling circuits can be strongly simulated", Phys. Rev. Lett. 121, 060505 (2018)
  • A. Rocchetto, E. Grant, S. Strelchuk, G. Carleo, S. Severini "Learning hard quantum distributions with variational autoencoders", npj Quantum Information Vol.4, 28 (2018)
  • D. Elkouss, S. Strelchuk "Superadditivity of private information for any number of uses of the channel", Phys. Rev. Lett. 115, 040501 (2015)
  • F. Brandao, A. Harrow, J. Oppenheim, S. Strelchuk "Quantum Conditional Mutual Information, Reconstructed States, and State Redistribution", Phys. Rev. Lett. 115, 050501 (2015)
  • H. Buhrman, L. Czekaj, A. Grudka, M. Horodecki, P. Horodecki, M. Markiewicz, F. Speelman, S. Strelchuk "Quantum communication complexity advantage implies violation of a Bell inequality", PNAS March 22, 2016 vol. 113 no. 12 3191-3196
  • D. Elkouss, S. Strelchuk, M. Ozols, W. Matthews, D. Perez-Garcia, T. Cubitt "Unbounded number of channel uses are required to see quantum capacity", Nature Communications 6, 7739 (2015)
  • R. Jozsa, A. Miyake, S. Strelchuk "Jordan-Wigner formalism for arbitrary 2-input 2-output matchgates and their classical simulation", Quantum Information & Computation Vol. 15, 7-8, 541-556 (2015) 
  • S. Strelchuk, M. Horodecki, J. Oppenheim “Entanglement Recycling and Generalized Teleportation”, Phys. Rev. Lett. 110, 010505 (2013)
  • F. Brandao, J. Oppenheim, S. Strelchuk “When does noise increase the quantum capacity?”, Phys. Rev. Lett. 108, 040501 (2012)


Support from the following organizations is gratefully acknowledged:




Efficient Algorithms for All Port-Based Teleportation Protocols
A Wills, M-H Hsieh, S Strelchuk
Simulating Quantum Circuits Using Efficient Tensor Network Contraction Algorithms with Subexponential Upper Bound
TB Wahl, S Strelchuk
– Physical review letters
Discovering optimal fermion—qubit mappings through algorithmic enumeration
M Chiew, S Strelchuk
– Quantum
Provable Advantage in Quantum PAC Learning
W Salmon, S Strelchuk, T Gur
Gaussian decomposition of magic states for matchgate computations
J Cudby, S Strelchuk
Minimal port-based teleportation
S Strelchuk, M Studziński
– New Journal of Physics
Speeding Up Learning Quantum States Through Group Equivariant Convolutional Quantum Ansatze
H Zheng, Z Li, J Liu, S Strelchuk, R Kondor
– PRX Quantum
Generalised Coupling and An Elementary Algorithm for the Quantum Schur Transform
A Wills, S Strelchuk
Noise is resource-contextual in quantum communication
A Nema, AG Maity, S Strelchuk, D Elkouss
Simultaneous superadditivity of the direct and complementary channel capacities
S Singh, S Strelchuk
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Research Group

Centre for Quantum Information and Foundations




01223 760383