Rotationally invariant slave-boson and density matrix embedding theory: Unified framework and comparative study on the one-dimensional and two-dimensional Hubbard model

Tsung Han Lee, Thomas Ayral, Yong Xin Yao, Nicola Lanata, B Kotliar

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We present detailed benchmark ground-state calculations of the one- and two-dimensional Hubbard model utilizing the cluster extensions of the rotationally invariant slave-boson mean-field theory and the density matrix embedding theory. Our analysis shows that the overall accuracy and the performance of these two methods are very similar. Furthermore, we propose a unified computational framework that allows us to implement both of these techniques on the same footing. This provides us with a different line of interpretation and paves the ways for developing systematically distinct generalizations of these complementary approaches.

Original languageEnglish (US)
Article number115129
JournalPhysical Review B
Volume99
Issue number11
DOIs
StatePublished - Mar 20 2019

Fingerprint

Hubbard model
Bosons
Mean field theory
two dimensional models
embedding
Ground state
bosons
ground state

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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Rotationally invariant slave-boson and density matrix embedding theory : Unified framework and comparative study on the one-dimensional and two-dimensional Hubbard model. / Lee, Tsung Han; Ayral, Thomas; Yao, Yong Xin; Lanata, Nicola; Kotliar, B.

In: Physical Review B, Vol. 99, No. 11, 115129, 20.03.2019.

Research output: Contribution to journalArticle

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T2 - Unified framework and comparative study on the one-dimensional and two-dimensional Hubbard model

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AU - Lanata, Nicola

AU - Kotliar, B

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