Prof. Balint Koczor

MSc, Dr rer. nat. (2019 TU Munich)

Pronouns

He / Him

Status

Academic Faculty

Associate Professor in Quantum Information Theory

Group leader: Quantum Information, Computation and Cryptography Group

Future Leaders Fellow

Associate Editor at npj Quantum Information

+44 1865 273567

Contact form

https://appliedqc.org

ORCID iD

https://orcid.org/0000-0002-4319-6870

Research groups

Mathematical Physics

Address

Mathematical Institute
University of Oxford
Andrew Wiles Building
Radcliffe Observatory Quarter
Woodstock Road
Oxford
OX2 6GG

Major / recent publications

Full list of publications on Google Scholar

Recent publications

Preparing Ground and Excited States Using Adiabatic CoVaR

Hwang, W Koczor, B (24 Sep 2024) http://arxiv.org/abs/2409.16194v2

Low Depth Phase Oracle Using a Parallel Piecewise Circuit

Sun, Z Boyd, G Cai, Z Jnane, H Koczor, B Meister, R Minko, R Pring, B Benjamin, S Stamatopoulos, N (06 Sep 2024)

Purification and correction of quantum channels by commutation-derived quantum filters

Das, S Sun, J Hanks, M Koczor, B Kim, M (29 Jul 2024)

Direct Estimation of the Density of States for Fermionic Systems

Goh, M Koczor, B (03 Jul 2024)

High-Dimensional Subspace Expansion Using Classical Shadows

Boyd, G Koczor, B Cai, Z (17 Jun 2024)

Sparse Probabilistic Synthesis of Quantum Operations

Koczor, B (23 Feb 2024)

Research interests

I have broad research interests in quantum theory and in the theory of (near-term) quantum computers, and an objective of my research is to make quantum computers practical. This includes developing new and improved ways to deal with errors (error mitigation techniques) in quantum computers while my research also aims to exploit classical supercomputers to squeeze out as much performance from quantum computers as possible. I work with experimentalists and with quantum companies to develop optimised platforms to best tailor quantum applications to hardware.

See more info at AppliedQC.org

Highlighted publications

Probabilistic interpolation of quantum rotation angles

Morton, J Koczor, B Benjamin, S Physical Review Letters volume 132 issue 13 (27 Mar 2024)

Quantum error mitigated classical shadows

Jnane, H Steinberg, J Cai, Z Nguyen, H Koczor, B PRX Quantum volume 5 issue 1 (09 Feb 2024)

Training variational quantum circuits with CoVaR: covariance root finding with classical shadows

Boyd, G Koczor, B Physical Review X volume 12 (28 Nov 2022)

The dominant eigenvector of a noisy quantum state

Koczor, B New Journal of Physics volume 23 issue 12 (28 Dec 2021)

Exponential error suppression for near-term quantum devices

Koczor, B Physical Review X volume 11 issue 3 (15 Sep 2021)

Measurement cost of metric-aware variational quantum algorithms

van Straaten, B Koczor, B PRX Quantum volume 2 issue 3 (10 Aug 2021)

Preferred address

email: koczor[AT]maths.ox.ac.uk