Quantum Computing Theory in Practice

Monday 8th AprilWednesday 10th April 2019

The past two years have seen rapid advances in building increasingly large-scale quantum computers. It is now widely expected that there will be a demonstration, within the coming months, of a device that cannot be simulated by any classical computer (so called ‘quantum computational supremacy’). The prospect of a relatively near-term device capable of a quantum advantage has sparked a huge amount of excitement both in academia and in industry. The conference will cover the central questions in this emerging field, focusing on how to use quantum computers to solve some of the grand challenges of our time, such as drug discovery or the development of energy-efficient industrial processes or new catalysts.

Topics will include quantum simulation, computational quantum chemistry and quantum algorithms for solving optimization problems. We will also invite speakers to talk about practical aspects of quantum programming and running experiments on current and imminent quantum computing hardware. The final theme will look to the future, with talks on scaling up quantum computers and new quantum algorithms.

The conference will include invited and contributed talks, together with a session bringing together end-users with quantum computing experts, and a poster session.

The registration deadline has passed.

Conference participants may also be interested in the Bristol Quantum Information Technologies Workshop, to be held in Bristol the previous week (1-3 April).

Keynote Speakers 

Iordanis Kerenidis (CNRS, IRIF, Univ Paris Diderot)
Hartmut Neven (Google)

Invited Speakers 

Ryan Babbush (Google)
Andrew Childs (University of Maryland)
Eleni Diamanti (CNRS, Sorbonne University)
Aram Harrow (MIT)
Naomi Nickerson (PsiQuantum)
David Poulin (Université de Sherbrooke)
Marcus da Silva (Rigetti)
Kristan Temme (IBM)
Ronald de Wolf (CWI)

Accepted talks

Oscar Higgott, Daochen Wang and Steve Brierley. Variational Quantum Computation of Excited States
Sam McArdle, Xiao Yuan and Simon Benjamin. Error mitigated digital quantum simulation
Joran van Apeldoorn and Andras Gilyen. Quantum algorithms for zero-sum games
* Daniel Litinski. A Game of Surface Codes: Large-Scale Quantum Computing with Lattice Surgery
Joel Wallman and Steve Flammia. Reconstructing Pauli Error Channels
Sergey Bravyi, Dan Browne, Padraic Calpin, Earl Campbell, David Gosset and Mark Howard. Simulation of quantum circuits by low-rank stabilizer decompositions
* Andris Ambainis, Kaspars Balodis, Jānis Iraids, Martins Kokainis, Krišjānis Prūsis and Jevgēnijs Vihrovs. Quantum Speedups for Exponential-Time Dynamic Programming Algorithms

Juani Bermejo-Vega, Dominik Hangleiter, Martin Schwarz, Robert Raussendorf and Jens Eisert. Architectures for quantum simulation showing a quantum speedup

* Two accepted talks (starred) were selected to be presented as invited talks.




de Wolf




The conference will start on Monday 8th April with registration at 10am, and finish on Wednesday 10th April at 4pm. The programme is here.


School of Chemistry, Lecture Theatre 2, University of Bristol, Cantock’s Close, Bristol, BS8 1TS.

The venue can be found using the University’s Google precinct map.

A few recommended dinner venues, pubs, and things to do are highlighted on the following map:


For planning purposes the venue is located within the main University precinct, postcode BS8 1TS. Information on local hotels and average prices can be found here. Alternatively you can find further information on other accommodation options by visiting the Visit Bristol website.


Please contact Francoise Blake regarding any administrative aspects of the conference.

Organising Committee

Steve Brierley (Riverlane)
Noah Linden (University of Bristol)
Ashley Montanaro (University of Bristol)

Programme Committee

Simon Benjamin (University of Oxford)
Dominic Berry (Macquarie University)
Steve Brierley (Riverlane)
Harry Buhrman (CWI / QuSoft)
Elizabeth Crosson (University of New Mexico)
Noah Linden (University of Bristol)
Ashley Montanaro (University of Bristol, chair)
Naomi Nickerson (PsiQuantum)

Local Organising Committee

Chris Cade
João Fernando Doriguello
Noah Linden
Lana Mineh
Ashley Montanaro
Alex Moylett
Stephen Piddock
Dominic Verdon

Call for submissions (deadline 11 January 2019)

Submissions are invited for contributed talks. Talks will be selected on the basis of scientific excellence; fit to the topic of the workshop; and balance of the programme.

Submissions should correspond to recent research contributions to quantum information and computation. The workshop will not publish proceedings, and work which has been, or will be, published elsewhere is welcome. Areas of interest include, but are not limited to:

  • Applications of quantum computers
  • Architectures for quantum computing
  • Quantum algorithms
  • Quantum compilation and circuit optimisation
  • Quantum error-correction and fault-tolerance
  • Simulation of quantum systems
  • Theory of near-term quantum computing
  • Verification of quantum devices

All submissions for talks must be made electronically through the online submission system EasyChair at https://easychair.org/conferences/?conf=qctip2019

A submission should consist of a full paper corresponding to the work, including technical details. This manuscript may be from an on-line repository, such as the arXiv; however, a PDF copy of it must be uploaded. If your submission consists of multiple papers they should be merged into a single file.

We encourage all workshop attendees to present a poster. Poster details can be provided during registration.

Conflict of interest: Programme Committee members must declare a conflict of interest on submissions where this is relevant (such as ones where they, or a close associate, are a coauthor) so that they are not involved in the discussion of these papers.

Important dates

Submission deadline: 11 January 2019, 23:59 (Anywhere on Earth)
Notification: 8 February 2019
Registration deadline: extended to 15 March 2019


We are very grateful to our sponsors:







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