Plaquette versus ordinary d-wave pairing in the t '-Hubbard model on a width-4 cylinder

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Plaquette versus ordinary d-wave pairing in the t '-Hubbard model on a width-4 cylinder. / Chung, Chia-Min; Qin, Mingpu; Zhang, Shiwei; Schollwoeck, Ulrich; White, Steven R.; Simons Collaboration Many-Electron.

In: Physical Review B, Vol. 102, No. 4, 041106, 06.07.2020.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Chung, C-M, Qin, M, Zhang, S, Schollwoeck, U, White, SR & Simons Collaboration Many-Electron 2020, 'Plaquette versus ordinary d-wave pairing in the t '-Hubbard model on a width-4 cylinder', Physical Review B, vol. 102, no. 4, 041106. https://doi.org/10.1103/PhysRevB.102.041106

APA

Chung, C-M., Qin, M., Zhang, S., Schollwoeck, U., White, S. R., & Simons Collaboration Many-Electron (2020). Plaquette versus ordinary d-wave pairing in the t '-Hubbard model on a width-4 cylinder. Physical Review B, 102(4), [041106]. https://doi.org/10.1103/PhysRevB.102.041106

Vancouver

Chung C-M, Qin M, Zhang S, Schollwoeck U, White SR, Simons Collaboration Many-Electron. Plaquette versus ordinary d-wave pairing in the t '-Hubbard model on a width-4 cylinder. Physical Review B. 2020 Jul 6;102(4). 041106. https://doi.org/10.1103/PhysRevB.102.041106

Author

Chung, Chia-Min ; Qin, Mingpu ; Zhang, Shiwei ; Schollwoeck, Ulrich ; White, Steven R. ; Simons Collaboration Many-Electron. / Plaquette versus ordinary d-wave pairing in the t '-Hubbard model on a width-4 cylinder. In: Physical Review B. 2020 ; Vol. 102, No. 4.

Bibtex

@article{1eb26ad088664fbf82ac4348378c7e06,
title = "Plaquette versus ordinary d-wave pairing in the t '-Hubbard model on a width-4 cylinder",
abstract = "The Hubbard model and its extensions are important microscopic models for understanding high-Tc superconductivity in cuprates. In the model with next-nearest-neighbor hopping t' (the t'-Hubbard model), pairing is strongly influenced by t'. In particular, a recent study on a width-4 cylinder observed quasi-long-range superconducting order, associated with a negative t', which was taken to imply superconductivity in the two-dimensional (2D) limit. In this work we study more carefully pairing in the width-4 t'-Hubbard model. We show that in this specific system, the pairing symmetry with t' < 0 is not the ordinary d-wave one would expect in the 2D limit. Instead we observe a so-called plaquette d-wave pairing. We show that the plaquette d-wave or its extension is difficult to generalize in other geometries, for example a 4-leg ladder with open boundaries or a width-6 cylinder. We find that a negative t' suppresses the conventional d-wave, leading to plaquette pairing. In contrast, a different t '' coupling acting diagonally on the plaquettes suppresses plaquette pairing, leading to conventional d-wave pairing.",
keywords = "STRIPES, STATE",
author = "Chia-Min Chung and Mingpu Qin and Shiwei Zhang and Ulrich Schollwoeck and White, {Steven R.} and {Simons Collaboration Many-Electron}",
year = "2020",
month = jul,
day = "6",
doi = "10.1103/PhysRevB.102.041106",
language = "English",
volume = "102",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "4",

}

RIS

TY - JOUR

T1 - Plaquette versus ordinary d-wave pairing in the t '-Hubbard model on a width-4 cylinder

AU - Chung, Chia-Min

AU - Qin, Mingpu

AU - Zhang, Shiwei

AU - Schollwoeck, Ulrich

AU - White, Steven R.

AU - Simons Collaboration Many-Electron

PY - 2020/7/6

Y1 - 2020/7/6

N2 - The Hubbard model and its extensions are important microscopic models for understanding high-Tc superconductivity in cuprates. In the model with next-nearest-neighbor hopping t' (the t'-Hubbard model), pairing is strongly influenced by t'. In particular, a recent study on a width-4 cylinder observed quasi-long-range superconducting order, associated with a negative t', which was taken to imply superconductivity in the two-dimensional (2D) limit. In this work we study more carefully pairing in the width-4 t'-Hubbard model. We show that in this specific system, the pairing symmetry with t' < 0 is not the ordinary d-wave one would expect in the 2D limit. Instead we observe a so-called plaquette d-wave pairing. We show that the plaquette d-wave or its extension is difficult to generalize in other geometries, for example a 4-leg ladder with open boundaries or a width-6 cylinder. We find that a negative t' suppresses the conventional d-wave, leading to plaquette pairing. In contrast, a different t '' coupling acting diagonally on the plaquettes suppresses plaquette pairing, leading to conventional d-wave pairing.

AB - The Hubbard model and its extensions are important microscopic models for understanding high-Tc superconductivity in cuprates. In the model with next-nearest-neighbor hopping t' (the t'-Hubbard model), pairing is strongly influenced by t'. In particular, a recent study on a width-4 cylinder observed quasi-long-range superconducting order, associated with a negative t', which was taken to imply superconductivity in the two-dimensional (2D) limit. In this work we study more carefully pairing in the width-4 t'-Hubbard model. We show that in this specific system, the pairing symmetry with t' < 0 is not the ordinary d-wave one would expect in the 2D limit. Instead we observe a so-called plaquette d-wave pairing. We show that the plaquette d-wave or its extension is difficult to generalize in other geometries, for example a 4-leg ladder with open boundaries or a width-6 cylinder. We find that a negative t' suppresses the conventional d-wave, leading to plaquette pairing. In contrast, a different t '' coupling acting diagonally on the plaquettes suppresses plaquette pairing, leading to conventional d-wave pairing.

KW - STRIPES

KW - STATE

U2 - 10.1103/PhysRevB.102.041106

DO - 10.1103/PhysRevB.102.041106

M3 - Journal article

VL - 102

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 4

M1 - 041106

ER -

ID: 271542670