Quantum Computing for Quantum Chemistry (QCQC) Discussion Group

Informal discussion group focusing on the application of Quantum Computing to Quantum Chemistry.

We meet fortnightly for lunch, mostly during term time - talks are given in a hybrid format, but pizza is provided to in person attendants!

Speakers come from a wide variety of backgrounds - anyone interested in or currently working in quantum information is welcome. Please let us know if you have any suggestions for future discussion topics or speakers; a list of previous and upcoming discussions can be found below.

Join the mailing list to be notified about upcoming meetings.

📽 Recordings of our previous talks can be found on our YouTube channel.

Contact: ucam-qcdg@lists.cam.ac.uk; Chiara Leadbeater cnl29@cam.ac.uk; Lila Cadi Tazi lc892@cam.ac.uk; Rowan Poklewski-Koziell rop24@cam.ac.uk; Maria-Andreea Filip maf63@cam.ac.uk.

Schedule

Upcoming talks are announced on our talks.cam page.

Previous Term Cards

Term cards designed by Rowan Poklewski-Koziell.

**Previous discussions**
Date	Title	Presented by	Affiliation
18/03/26	Lazy Quantum Walks with Native Multiqubit Gates	Stephanie Foulds	University of Strathclyde
06/03/26	Optimizing and comparing quantum resources of statistical phase estimation and Krylov subspace diagonalization for chemistry 📽 Recording available here.	Pauline Ollitrault	QC Ware
19/02/26	Efficient LCU Block Encodings through Dicke State Preparation	Roel van Beeumen	Lawrence Berkeley National Laboratory & KU Leuven
04/02/26	Dissipative quantum algorithms for thermal state preparation and their convergence times 📽 Recording available here.	Štěpán Smid	Imperial College London
21/01/26	Quantum Algorithm for Real-Space Chemistry on Adaptive Molecular Grids 📽 Recording available here.	César Feniou	Sorbonne Université & Qubit-Pharmaceuticals
3/12/23	Towards Compact Wavefunctions from Quantum-Selected Configuration Interaction 📽 Recording available here.	Tim Weaving	UCL
26/11/25	Quantum Simulation of many body fermionic systems on NISQ devices 📽 Recording available here.	Sabrina Wang	Phasecraft
12/11/25	TE-PAI: Exact Time Evolution by Sampling Random Circuits 📽 Recording available here.	Chusei Kiumi	Osaka University
15/10/25	Quantum simulations of chemistry in first quantization with any basis set 📽 Recording available here.	Alexsei Ivanov	Riverlane
18/06/25	Dynamics from statics: A conceptual reformulation of Green’s function perturbation theories	Oliver Backhouse	Quantinuum
04/06/2025	Bayesian quantum phase estimation with multiple quantum computers 📽 Recording available here.	Walden Killick	Cambridge Consultants
14/05/25	Hamiltonian dynamics simulation using linear combination of unitaries on an ion trap quantum computer 📽 Recording available here.	Michelle W Sze	Quantinuum
19/02/25 & 12/03/25	Exact Space Spin Factorisation of the Full Fermionic Wave Function under U(n) x SU(2) 📽 Recordings available here and here.	Nathan Fitzpatrick	Quantinuum
05/02/25	Fault-tolerant quantum simulation of generalized Hubbard models 📽 Recording available here.	Nick Blunt	Riverlane
23/10/2024	Quantum state preparation via piecewise QSVT 📽 Recording available here.	Oliver O'Brien	Department of Applied Mathematics and Theoretical Physics
06/11/24	Multireference State Preparation and Quantum Computed Moments in InQuanto 📽 Recording available here.	Gabriel Greene-Diniz	Quantinuum
23/10/2024	Introduction to Direct Fidelity Estimation	Jedrzej Burkat	Department of Physics
13/06/2024	Low-Overhead Parallelisation of LCU via Commuting Operators 📽 Recording available here.	Gregory Boyd	Quantum Technology Theory Group, University of Oxford
06/06/2024	Variational Phase Estimation with Variational Fast Forwarding 📽 Recording available here.	Maria-Andreea Filip	Max Planck Institute for Solid State Research, Stuttgart
16/05/2024	Quantum computing simulation of a mixed spin-boson Hamiltonian and its performance for a cavity quantum electrodynamics problem	Maria Tudorovskaya	Quantinuum
02/05/2024	Discovering optimal fermion-qubit mappings through algorithmic enumeration 📽 Recording available here.	Mitchell Chiew	Centre for Quantum Information and Foundations, Cambridge
14/03/2024	Energy Landscapes of VQAs 📽 Recording available here.	Choy Boy	Wales group
05/02/2024	Quantum attacks on signature schemes	Marcel Mordarski	Elkouss group, OIST
15/11/2023	Quantum signal processing and qubitisation tutorial 📽 Recording available here.	Nathan Fitzpatrick	Quantinuum
25/10/2023	Adapting the HHL algorithm to (non-unitary) quantum many-body theory 📽 Recording available here.	Marcel Mordarski	Elkouss group, OIST
11/10/2023	Correcting spanning errors with a fractal code	Georgia M. Nixon	Department of Physics
17/08/2023	Quantum Error Correction workshop	Ben Criger	Quantinuum
12/06/2023	Predicting many properties of a quantum system from very few measurements	Rowan Poklewski-Koziell	Thom group
25/05/2023	Reducing the molecular electronic Hamiltonian encoding costs on quantum computers by symmetry shifts	Nathan Fitzpatrick	Quantinuum
02/05/2023	Evaluating the evidence for exponential quantum advantage in ground-state quantum chemistry	Ilyes Batatia	Department of Engineering
29/03/2023	A four-qubit germanium quantum processor	Marcel Mordarski	Department of Physics
07/03/2023	Noise-assisted digital quantum simulation of open systems	Lila Cadi Tazi	Thom group
21/02/2023	Variational quantum chemistry requires gate-error probabilities below the fault-tolerance threshold
31/01/2023	Evaluating analytic gradients on quantum hardware Avoiding local minima in Variational Quantum Algorithms with Neural Networks	Lila Cadi Tazi and Chiara Leadbeater	Thom group
22/11/2022	Oral presentation	Nathan Fitzpatrick	Quantinuum
08/11/2022	CNOT-Efficient Circuits for Arbitrary Rank Many-Body Fermionic and Qubit Excitations	Maria-Andreea Filip	Thom group
18/10/2022	Conditions for a class of entanglement transformations Majorization and the interconversion of bipartite states	Chiara Leadbeater	Thom group

Quantum Computing for Quantum Chemistry (QCQC) Discussion Group

Quantum Computing for Quantum Chemistry (QCQC) Discussion Group

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