Professor Earl Campbell

School of Mathematical and Physical Sciences

Professor of Quantum Computation

PHY Earl Campbell
Profile picture of PHY Earl Campbell
e.campbell@sheffield.ac.uk
Hicks Building

Full contact details

Professor Earl Campbell
School of Mathematical and Physical Sciences
Hicks Building
Hounsfield Road
Sheffield
S3 7RH
Profile

The quintessentially quantum features of nature are superposition and entanglement of quantum states.

I am interested in how these properties can be exploited to realise practical quantum technologies with capabilities beyond those allowed by classical, pre-20th century understanding of physics. See the research tab for more information.

My research team has one postdoc (Mark Howard) and one PhD student (Luke Heyfron).

Career history

  • Research Fellow funded by Royal Commission of Great Exhibition of 1851 (2008-2010, University College London)
  • Research Associate (2010-2013, Potsdam University and Frei University Berlin, Germany)
  • Research Associate (2014-2015, University of Sheffield)
  • EPSRC early career Research Fellow (2015-, University of Sheffield)
Qualifications
  • Physics & Philosophy MSc (2001-2005, Bristol University)
  • Quantum computing PhD (2005-2008, Oxford University)
Research interests
  • Architectures for fault-tolerant quantum computing
  • Topological error correcting codes
  • Magic states
  • Gate synthesis
  • Majorana fermions and anyonic quantum computing
  • Non-locality and foundations of quantum mechanics
  • Qudit quantum computation

The central question behind my research programme is 'What are the optimal blue-prints for large-scale, reliable quantum technologies?'.

My main focus is fault-tolerance of quantum computation. My group designs protocols and software needed to operate future quantum computers, ensuring they would work reliably despite noise and decoherence.

This includes development of error correction codes and decoders, design of magic state factories and compilation of algorithms into machine level commands.

Magic state factories determine the processing speed of a quantum computers, so can be considered analogous to the CPU of conventional devices.

Publications

Show: Featured publications All publications

Journal articles

  • Campbell E (2019) . Physical Review Letters, 123(7), ---.
  • Campbell E & Howard M (2017) . Physical Review Letters, 118.
  • Campbell E & Howard M (2017) . Physical Review Letters, 118.
  • Campbell ET (2014) . Physical Review Letters, 113(23).

All publications

Journal articles

  • Luthra S, Moylett AE, Browne DE & Campbell ET (2025) . Quantum Science and Technology, 10(4).
  • Ivanov AV, Patterson A, Bothe M, Sünderhauf C, Berntson BK, Mortensen JJ, Kuisma M, Campbell E & Izsák R (2025) . Journal of Chemical Theory and Computation, 21(15), 7360-7377.
  • Gehér GP, Jastrzebski M, Campbell ET & Crawford O (2025) . npj Quantum Information, 11(1).
  • Barber B, Barnes KM, Bialas T, BuÄŸdaycı O, Campbell ET, Gillespie NI, Johar K, Rajan R, Richardson AW, Skoric L , Topal C et al (2025) . Nature Electronics, 8(1), 84-91.
  • Ali H, Marques J, Crawford O, Majaniemi J, Serra-Peralta M, Byfield D, Varbanov B, Terhal BM, DiCarlo L & Campbell ET (2024) . Physical Review Applied, 22(4).
  • Gehér GP, Crawford O & Campbell ET (2024) . PRX Quantum, 5(1).
  • Sünderhauf C, Campbell E & Camps J (2024) . Quantum, 8, 1226-1226.
  • Blunt NS, Caune L, Izsák R, Campbell ET & Holzmann N (2023) . PRX Quantum, 4(4).
  • Skoric L, Browne DE, Barnes KM, Gillespie NI & Campbell ET (2023) . Nature Communications, 14(1).
  • Higgott O, Bohdanowicz TC, Kubica A, Flammia ST & Campbell E (2023) . Physical Review X, 13.
  • Roffe J, Cohen LZ, Quintavalle AO, Chandra D & Campbell ET (2023) . Quantum, 7.
  • Frembs M, Roberts S, Campbell ET & Bartlett SD (2023) . New Journal of Physics, 25.
  • Meister R, Benjamin SC & Campbell ET (2022) . Quantum, 6.
  • Ouyang Y & Campbell ET (2021) . IEEE Transactions on Information Theory, 67(10), 6644-6652.
  • Quintavalle AO, Vasmer M, Roffe J & Campbell ET (2021) . PRX Quantum, 2(2).
  • Seddon JR, Regula B, Pashayan H, Ouyang Y & Campbell ET (2021) . PRX Quantum, 2(1).
  • Sidhu JS, Ouyang Y, Campbell ET & Kok P (2021) . Physical Review X, 11(1).
  • Crawford O, van Straaten B, Wang D, Parks T, Campbell E & Brierley S (2021) . Quantum, 5.
  • Roffe J, White DR, Burton S & Campbell E (2020) . Physical Review Research, 2(4).
  • Beverland M, Campbell E, Howard M & Kliuchnikov V (2020) . Quantum Science and Technology, 5(3).
  • Ouyang Y, White DR & Campbell ET (2020) . Quantum, 4, 235-235.
  • Bravyi S, Browne D, Calpin P, Campbell E, Gosset D & Howard M (2019) . Quantum, 3.
  • Campbell E (2019) . Physical Review Letters, 123(7), ---.
  • Campbell E, Khurana A & Montanaro A (2019) . Quantum, 3.
  • Seddon JR & Campbell ET (2019) . Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 475(2227).
  • Campbell E (2019) . Quantum Science and Technology, 4(2).
  • Campbell E & Heyfron L (2018) . Quantum Science and Technology, 4(1).
  • Campbell E & Howard M (2018) . Quantum, 2.
  • Breuckmann N, Vuillot C, Campbell E, Krishna A & Terhal B (2017) . Quantum Science and Technology, 2(3).
  • Pearce ME, Campbell ET & Kok P (2017) . Quantum, 1, 21-21.
  • Herold M, Kastoryano M, Campbell E & Eisert J (2017) . New Journal of Physics, 19.
  • Campbell E (2017) . Physical Review A, 95(4).
  • Campbell E (2017) . Physical Review A - Atomic, Molecular, and Optical Physics, 95.
  • Campbell E & Howard M (2017) . Physical Review Letters, 118.
  • Campbell E & Howard M (2017) . Physical Review A, 95.
  • Campbell E & Howard M (2017) . Physical Review Letters, 118.
  • Campbell E & O'Gorman J (2016) . Quantum Science & Technology, 1.
  • Waeldchen S, Gertis J, Campbell ET & Eisert J (2016) . Physical Review Letters, 116(2).
  • Herold M, Campbell ET, Eisert J & Kastoryano MJ (2015) . npj Quantum Information, 1.
  • Watson FHE, Campbell ET, Anwar H & Browne DE (2015) . Physical Review A, 92(2).
  • Campbell ET (2014) . Physical Review Letters, 113(23).
  • Bengtsson I, Blanchfield K, Campbell E & Howard M (2014) . Journal of Physics A: Mathematical and Theoretical, 47(45), 455302-455302.
  • Campbell ET, Hoban MJ & Eisert J (2014) Majorana fermions and non-locality. Quantum Information and Computation, 14(11-12), 981-995.
  • CAMPBELL ET & FITZSIMONS J (2010) . International Journal of Quantum Information, 08(01n02), 219-258.
  • CAMPBELL ET (2010) . International Journal of Quantum Information, 08(01n02), 161-180.
  • Gehér GP, McLauchlan C, Campbell ET, Moylett AE & Crawford O () . Quantum, 8, 1394-1394.
  • Campbell E, Terhal B & Vuillot C () . Nature, 549, 172-179.
  • Anwar H, Brown BJ, Campbell ET & Browne DE () . New Journal of Physics, 16(6), 063038-063038.
  • Campbell ET, Genoni MG & Eisert J () . Physical Review A, 87(4).
  • Campbell ET, Anwar H & Browne DE () . Physical Review X, 2(4).
  • Anwar H, Campbell ET & Browne DE () . New Journal of Physics, 14(6), 063006-063006.
  • Campbell ET & Eisert J () . Physical Review Letters, 108(2).
  • Campbell ET () . Physical Review A, 83(3).
  • Hoban MJ, Campbell ET, Loukopoulos K & Browne DE () . New Journal of Physics, 13(2), 023014-023014.
  • Campbell ET () . Physical Review A, 82(4).
  • Campbell ET & Browne DE () . Physical Review Letters, 104(3).
  • Campbell ET & Benjamin SC () . Physical Review Letters, 101(13).
  • Campbell ET () . Physical Review A, 76(4).
  • Campbell ET, Fitzsimons J, Benjamin SC & Kok P () . New Journal of Physics, 9(6), 196-196.
  • Campbell ET, Fitzsimons J, Benjamin SC & Kok P () . Physical Review A, 75(4).

Conference proceedings

  • Ali H, Marques J, Crawford O, Majaniemi J, Serra-Peraltal M, Byfield D, Varbanov B, Terhal BM, DiCarlo L & Campbell ET (2024) . 2024 IEEE International Conference on Quantum Computing and Engineering (QCE) (pp 382-383), 15 September 2024 - 20 September 2024.
  • Gehér GP, Crawford O & Campbell ET (2023) . 2023 IEEE International Conference on Quantum Computing and Engineering (QCE) (pp 342-343), 17 September 2023 - 22 September 2023.
  • Barnes KM, Bialas T, BuÄŸdayci O, Campbell ET, Gillespie NI, Johar K, Rajan R, Richardson AW, Skoric L, Topal C , Turner ML et al (2023) . 2023 IEEE International Conference on Quantum Computing and Engineering (QCE) (pp 375-376), 17 September 2023 - 22 September 2023.
  • Dalzell AM, Pancotti N, Campbell ET & Brandão FGSL (2023) . Proceedings of the 55th Annual ACM Symposium on Theory of Computing (pp 1131-1144). Orlando, Florida, 20 June 2023 - 20 June 2023.
  • Meuli G, Soeken M, Campbell E, Roetteler M & de Micheli G (2019) . 2019 IEEE/ACM International Conference on Computer-Aided Design (ICCAD). Westminster, CO, USA, 4 November 2019 - 7 November 2019.
  • Jones BDM, White DR, O’Brien GO, Clark JA & Campbell ET (2019) . GECCO '19: Proceedings of the Genetic and Evolutionary Computation Conference (pp 1223-1231). Prague, Czech Republic, 13 July 2019 - 13 July 2019.
  • Campbell ET (2015) . Leibniz International Proceedings in Informatics Lipics, Vol. 44 (pp 111-126)
  • Campbell ET & Browne DE (2009) (pp 20-32)

Preprints

  • Ouyang Y & Campbell ET (2020) , arXiv.
  • Seddon JR, Regula B, Pashayan H, Ouyang Y & Campbell ET (2020) , arXiv.
  • Sidhu JS, Ouyang Y, Campbell ET & Kok P (2019) , arXiv.
  • Ouyang Y, White DR & Campbell ET (2019) , arXiv.
  • Beverland M, Campbell E, Howard M & Kliuchnikov V (2019) Lower bounds on the non-Clifford resources for quantum computations.
  • Bravyi S, Browne D, Calpin P, Campbell E, Gosset D & Howard M (2018) Simulation of quantum circuits by low-rank stabilizer decompositions.
  • Campbell ET & Howard M (2017) Magic state parity-checker with pre-distilled components.
Research group
Grants
  • EPSRC early career fellow project "Towards fault-tolerant quantum computing with minimal resources." EP/M024261/1 value: £675,867
  • Royal Commission of Great Exhibition of 1851 fellowship funding. value: ~£100,000
Teaching activities
  • PHY101 Academic tutor
  • 3rd and 4th year project supervisor
Professional activities and memberships
  • Active member of EPSRC Peer Review College.
  • Institute of Physics QQQ (Quantum Optics, Quantum Information and Quantum Control) group Committee.
  • Organiser of FTQT2016 (Fault-tolerant quantum technologies) workshop in Benasque, Spain.

Links