Quantum Computing for Lattice Field Theory and High-Energy Physics

Session

Invited Speakers and Contributions

24 Mar 2025, 11:10

National Oceanography Centre, University of Southampton

5. Maths-to-code: domain-specific compiler architecture

Prof. Paul Kelly (Imperial College London)

24/03/2025, 11:10

This talk is not about quantum computing, nor physics: it’s about software tools that generate code from the maths.  I want to show you some examples of what is possible.  The big idea is to capture an abstract model of the computation that makes hard optimisations easy.  My aim is to seed conversations about how to do this for the applications at this workshop.

6. Versatile cross-platform compilation toolchain for Schrödinger-style quantum circuit simulation

Yuncheng Lu (Imperial College London)

24/03/2025, 11:45

While existing quantum hardware resources have limited availability and reliability, there is a growing demand for exploring and verifying quantum algorithms. Efficient classical simulators for high-performance quantum simulation are critical to meeting this demand. However, due to the vastly varied characteristics of classical hardware, implementing hardware-specific optimizations for...

7. Exponential inefficiency in quantum simulation of bosons, and its cure

Masanori Hanada

24/03/2025, 12:05

Hamiltonian quantum simulation of bosons on digital quantum computers requires truncating the Hilbert space to finite dimensions. We highlight that naive schemes, such as Fock basis truncation, can result in an exponentially large number of Pauli strings in the truncated Hamiltonian, with regard to the number of qubits Q assigned to each boson. Even a small departure from the diagonal form can...

8. Phase transition of non-Hermitian systems using variational quantum techniques

James Hancock (University of Plymouth)

24/03/2025, 12:25

The motivation for studying non-Hermitian systems and the role of {PT}-symmetry is discussed. We investigate the use of a quantum algorithm to find the eigenvalues and eigenvectors of non-Hermitian Hamiltonians, with applications to quantum phase transitions. We use a recently proposed variational algorithm.