تقرير
Hamiltonian Reconstruction: the Correlation Matrix and Incomplete Operator Bases
| العنوان: | Hamiltonian Reconstruction: the Correlation Matrix and Incomplete Operator Bases |
|---|---|
| المؤلفون: | Brito, Lucas Z., Carr, Stephen, Jacoby, J. Alexander, Marston, J. B. |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science, Quantum Physics |
| الوصف: | We explore the robustness of the correlation matrix Hamiltonian reconstruction technique with respect to the choice of operator basis, studying the effects of bases that are undercomplete and over-complete -- too few or too many operators respectively. An approximation scheme for reconstructing from an undercomplete basis is proposed and performed numerically on select models. We discuss the confounding effects of conserved quantities and symmetries on reconstruction attempts. We apply these considerations to a variety of one-dimensional systems in zero- and finite-temperature regimes. Comment: 11 pages, 8 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2311.09302 |
| رقم الأكسشن: | edsarx.2311.09302 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |