Publications
Publication Information
| Title | Continuous variable quantum computation of the O(3) model in 1+1 dimensions |
| Authors | Shane Thompson, George Siopsis, Raghav Jha, Felix Ringer |
| JLAB number | JLAB-THY-23-3934 |
| LANL number | arXiv:2310.12512 |
| Other number | DOE/OR/23177-7220 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review A Volume 109 Page(s) 052412 | |
| Publication Abstract: | We formulate the $O(3)$ non-linear sigma model in $1+1$ dimensions as a limit of a three-component scalar field theory restricted to the unit sphere in the large squeezing limit. This allows us to describe the model in terms of the continuous variable (CV) approach to quantum computing. We construct the ground state and excited states using the coupled cluster ansatz and find excellent agreement with the exact diagonalization results for a small number of lattice sites. We then present the simulation protocol for the time evolution of the model using CV gates, estimate the discretization error, and present numerical results obtained from a photonic quantum simulator. We expect that the methods developed in this work will be useful for exploring interesting dynamics for a wide class of sigma models and gauge theories, as well as for simulating scattering events on quantum hardware in the coming decade. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevA.109.052412 |
| Accepted Manuscript: | 2310.12512v2.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |