Precision-preserving qubit reduction based on spatial symmetries in fermionic systems
US11894107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2019 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Dec 7, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16C10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and techniques that facilitate precision-preserving qubit reduction based on spatial symmetries in fermionic systems are provided. In one or more embodiments, a symmetry component can generate a diagonalized second quantization representation of a spatial point group symmetry operation. The spatial point group symmetry operation can be associated with a molecule (e.g., a geometrical rotation, reflection, and/or inversion of a physical molecule that results in a new molecular orientation that is substantially the same as the original molecular orientation). In one or more embodiments, a transformation component can convert the diagonalized second quantization representation into a single Pauli string. In one or more embodiments, a tapering component can taper off qubits in a computational quantum algorithm that models properties of the molecule, based on the single Pauli string. Various embodiments can thus leverage geometrical spatial symmetries of a molecule to reduce a number of qubits needed to simulate the molecule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.