Taming two interacting particles with disorder
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Diana Thongjaomayum | - |
dc.contributor.author | Alexei Andreanov | - |
dc.contributor.author | Thomas Engl | - |
dc.contributor.author | Sergej Flach | - |
dc.date.available | 2020-01-31T00:51:26Z | - |
dc.date.created | 2019-12-23 | - |
dc.date.issued | 2019-12 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | https://pr.ibs.re.kr/handle/8788114/6741 | - |
dc.description.abstract | We compute the scaling properties of the localization length ξ2 of two interacting particles in a one- dimensional chain with diagonal disorder, and the connectivity properties of the Fock states. We analyze record large system sizes (up to N = 20 000) and disorder strengths (down to W = 0.5). We vary the energy E and the on-site interaction strength u. At a given disorder strength, the largest enhancement of ξ2 occurs for u of the order of the single-particle bandwidth and for two-particle states with energies at the center of the spectrum, E = 0. We observe a crossover in the scaling of ξ2 with the single-particle localization length ξ1 into the asymptotic regime for ξ1 > 100 (W < 1.0). This happens due to the recovery of translational invariance and momentum conservation rules in the matrix elements of interconnected Fock eigenstates for u = 0. The entrance into the asymptotic scaling is manifested through a nonlinear scaling function ξ2 /ξ1 = F (uξ1 ). ©2019 American Physical Society | - |
dc.description.uri | 1 | - |
dc.language | 영어 | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Taming two interacting particles with disorder | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.identifier.wosid | 000502781200004 | - |
dc.identifier.scopusid | 2-s2.0-85077498603 | - |
dc.identifier.rimsid | 70931 | - |
dc.contributor.affiliatedAuthor | Diana Thongjaomayum | - |
dc.contributor.affiliatedAuthor | Alexei Andreanov | - |
dc.contributor.affiliatedAuthor | Thomas Engl | - |
dc.contributor.affiliatedAuthor | Sergej Flach | - |
dc.identifier.doi | 10.1103/PhysRevB.100.224203 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.100, no.22, pp.224203 | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 100 | - |
dc.citation.number | 22 | - |
dc.citation.startPage | 224203 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | COHERENT PROPAGATION | - |
dc.subject.keywordPlus | LOCALIZATION | - |
dc.subject.keywordPlus | INSULATOR | - |
dc.subject.keywordPlus | SYSTEM | - |