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    Rights statement: © 2018 American Physical Society

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Fermionic phases and their transitions induced by competing finite-range interactions

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Fermionic phases and their transitions induced by competing finite-range interactions. / Szyniszewski, Marcin; Schomerus, Henning Ulrich.

In: Physical review B, Vol. 98, 075139 , 22.08.2018.

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@article{200d81f7a64f4d779513300139470a80,
title = "Fermionic phases and their transitions induced by competing finite-range interactions",
abstract = "We identify ground states of one-dimensional fermionic systems subject to competing repulsive interactions of finite range, and provide phenomenological and fundamental signatures of these phases and their transitions. Commensurable particle densities admit multiple competing charge-ordered insulating states with various periodicities and internal structure. Our reference point are systems with interaction range p=2, where phase transitions between these charge-ordered configurations are known to be mediated by liquid and bond-ordered phases. For increased interaction range p=4, we find that the phase transitions can also appear to be abrupt, as well as being mediated by re-emergent ordered phases that cross over into liquid behavior. These considerations are underpinned by a classification of the competing charge-ordered states in the atomic limit for varying interaction range at the principal commensurable particle densities. We also consider the effects of disorder, leading to fragmentization of the ordered phases and localization of the liquid phases.",
author = "Marcin Szyniszewski and Schomerus, {Henning Ulrich}",
note = "{\textcopyright} 2018 American Physical Society",
year = "2018",
month = aug,
day = "22",
doi = "10.1103/PhysRevB.98.075139",
language = "English",
volume = "98",
journal = "Physical Review B: Condensed Matter and Materials Physics",
issn = "1098-0121",
publisher = "AMER PHYSICAL SOC",

}

RIS

TY - JOUR

T1 - Fermionic phases and their transitions induced by competing finite-range interactions

AU - Szyniszewski, Marcin

AU - Schomerus, Henning Ulrich

N1 - © 2018 American Physical Society

PY - 2018/8/22

Y1 - 2018/8/22

N2 - We identify ground states of one-dimensional fermionic systems subject to competing repulsive interactions of finite range, and provide phenomenological and fundamental signatures of these phases and their transitions. Commensurable particle densities admit multiple competing charge-ordered insulating states with various periodicities and internal structure. Our reference point are systems with interaction range p=2, where phase transitions between these charge-ordered configurations are known to be mediated by liquid and bond-ordered phases. For increased interaction range p=4, we find that the phase transitions can also appear to be abrupt, as well as being mediated by re-emergent ordered phases that cross over into liquid behavior. These considerations are underpinned by a classification of the competing charge-ordered states in the atomic limit for varying interaction range at the principal commensurable particle densities. We also consider the effects of disorder, leading to fragmentization of the ordered phases and localization of the liquid phases.

AB - We identify ground states of one-dimensional fermionic systems subject to competing repulsive interactions of finite range, and provide phenomenological and fundamental signatures of these phases and their transitions. Commensurable particle densities admit multiple competing charge-ordered insulating states with various periodicities and internal structure. Our reference point are systems with interaction range p=2, where phase transitions between these charge-ordered configurations are known to be mediated by liquid and bond-ordered phases. For increased interaction range p=4, we find that the phase transitions can also appear to be abrupt, as well as being mediated by re-emergent ordered phases that cross over into liquid behavior. These considerations are underpinned by a classification of the competing charge-ordered states in the atomic limit for varying interaction range at the principal commensurable particle densities. We also consider the effects of disorder, leading to fragmentization of the ordered phases and localization of the liquid phases.

U2 - 10.1103/PhysRevB.98.075139

DO - 10.1103/PhysRevB.98.075139

M3 - Journal article

VL - 98

JO - Physical Review B: Condensed Matter and Materials Physics

JF - Physical Review B: Condensed Matter and Materials Physics

SN - 1098-0121

M1 - 075139

ER -