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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!

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.

šŸ“½ Most talks can be found on our YouTube channel.

Contact: ucam-qcdg@lists.cam.ac.uk;Ā cnl29@cam.ac.uk;Ā lc892@cam.ac.uk

Schedule

Details Description / Key words Talk Presented by Affiliation
19/02/25 & 12/03/25 Ā  Exact Space Spin Factorisation of the Full Fermionic Wave Function under U(n) x SU(2) Nathan Fitzpatrick Quantinuum

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Previous discussions

Date Ā Description / Key words Title Presented by Affiliation
05/02/25 Ā 

Fault-tolerant quantum simulation of generalized Hubbard models

šŸ“½Ā Recording availableĀ here.

Nick Blunt Riverlane
23/10/2024 Ā 

Quantum state preparation via piecewise QSVT

šŸ“½Ā Recording availableĀ here.

Oliver O'Brien Department of Applied Mathematics and Theoretical Physics
06/11/24 Ā 

Multireference State Preparation and Quantum Computed Moments in InQuanto

šŸ“½Ā Recording availableĀ here.

Gabriel Greene-Diniz Quantinuum
23/10/2024 Ā 

Introduction to Direct Fidelity Estimation

Jedrzej Burkat Department of Physics
13/06/2024 LCUĀ ParallelisationĀ 

Low-Overhead Parallelisation of LCU via Commuting Operators

šŸ“½Ā Recording availableĀ here.

Gregory Boyd Quantum Technology Theory Group, University of Oxford
06/06/2024 Variational Fast Forwarding

Variational Phase Estimation with Variational Fast Forwarding

šŸ“½Ā Recording availableĀ here.

Maria-Andreea Filip Max Planck Institute for Solid State Research,Ā Stuttgart
16/05/2024 Simulation ofĀ mixed spin-boson for cavity quantum electrodynamics Quantum computing simulation of a mixed spin-boson Hamiltonian and its performance for a cavity quantum electrodynamics problem Maria Tudorovskaya Quantinuum
02/05/2024 A guide to one-to-one fermionā€“qubit mappings

Discovering optimal fermion-qubit mappings through algorithmic enumeration

šŸ“½Ā Recording availableĀ here.

Mitchell Chiew Centre for Quantum Information and Foundations, Cambridge
14/03/2024 Energy Landscapes of VQAs

Energy Landscapes of VQAs

šŸ“½Ā Recording availableĀ here.

Choy Boy Wales group
05/02/2024 Quantum attacks on signature schemes Quantum attacks on signature schemes Marcel Mordarski Elkouss group, OIST
15/11/2023 Quantum signal processing and qubitisation tutorial

Quantum signal processing and qubitisation tutorial

šŸ“½Ā Recording availableĀ here.

Nathan Fitzpatrick Quantinuum
25/10/2023 Adapting the HHL algorithm to (non-unitary) quantum many-body theory

Adapting the HHL algorithm to (non-unitary) quantum many-body theory

šŸ“½Ā Recording availableĀ here.

Marcel Mordarski Elkouss group, OIST
11/10/2023
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Correcting spanning errors with a fractal code Correcting spanning errors with a fractal code Georgia M. Nixon Department of Physics
17/08/2023 Introduction to QEC Quantum Error Correction workshop Ben Criger Quantinuum
12/06/2023 Classical shadows Predicting many properties of a quantum system from very few measurements Rowan Poklewski-Koziell Thom group
25/05/2023 Ā  Reducing the molecular electronic Hamiltonian encoding costs on quantum computers by symmetry shifts Nathan Fitzpatrick Quantinuum
02/05/2023 Ā  Evaluating the evidence for exponential quantum advantage in ground-state quantum chemistry Ilyes Batatia Department of Engineering
29/03/2023 Ā  A four-qubit germanium quantum processor Marcel Mordarski Department of Physics
07/03/2023 Ā  Noise-assisted digital quantum simulation of open systems Lila Cadi Tazi Thom group
21/02/2023 Attainable accuracy using variational algorithms for quantum chemistry Variational quantum chemistry requires gate-error probabilities below the fault-tolerance threshold Ā  Ā 
31/01/2023 Interfacing Quantum and Machine Learning - Gradients on QC

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 Linear Combination of Unitaries Oral presentation Nathan Fitzpatrick Quantinuum
08/11/2022 CNOT efficient fermionic excitations CNOT-Efficient Circuits for Arbitrary Rank Many-Body Fermionic and Qubit Excitations Maria-Andreea Filip Thom group
18/10/2022 Entanglement Transformations

Conditions for a class of entanglement transformations

Majorization and the interconversion of bipartite states

Chiara Leadbeater Thom group

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