Spectral density of interacting pairs in low-dimensional finite lattices
| Autor: | T. Chattaraj |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Physics and Astronomy (miscellaneous) Computation metal-insulator transitions Spectral density FOS: Physical sciences Condensed Matter Physics Space (mathematics) 01 natural sciences bound states lcsh:QC1-999 010305 fluids & plasmas Condensed Matter - Other Condensed Matter doublons Range (mathematics) quasiparticles and collective excitations Quantum mechanics 0103 physical sciences Bound state Ideal (ring theory) Recursion method 010306 general physics Energy (signal processing) lcsh:Physics Other Condensed Matter (cond-mat.other) |
| Zdroj: | Condensed Matter Physics, Vol 24, Iss 1, p 13302 (2021) |
| DOI: | 10.48550/arxiv.2103.15496 |
| Popis: | The spectral density of bound pairs in ideal 1D, 2D and Bethe lattices is computed for weak and strong interactions. The computations are performed with Green's functions by an efficient recursion method in real space. For the range of interaction strengths within which bound states are predominantly single pairs, the spectral profiles guide to the energy bandwidths where the bound pairs can be maximized. Comment: 7 pages, 3 figures |
| Databáze: | OpenAIRE |
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