47 citations · 364 across the 19 of their papers we have counts for
19 papers
Accuracy of ghost-rotationally-invariant slave-boson theory for multiorbital Hubbard models and realistic materials
Tsung-Han Lee, Corey Melnick, Ran Adler +2
We assess the accuracy of the ghost-rotationally-invariant slave-boson (g-RISB) theory in multiorbital systems by applying it to both the three-orbital degenerate Hubbard model and…
Accuracy of ghost-rotationally-invariant slave-boson and dynamical mean field theory as a function of the impurity-model bath size
Tsung-Han Lee, Nicola Lanatà, Gabriel Kotliar
We compare the accuracy of the ghost-rotationally-invariant slave-boson (g-RISB) theory and dynamical mean-field theory (DMFT) on the single-band Hubbard model, as a function of th…
Mott domain walls: a (strongly) non-Fermi liquid state of matter
Tsung-Han Lee, J. Vučičević, D. Tanasković +2
Most Mott systems display a low-temperature phase coexistence region around the metal-insulator transition. The domain walls separating the respective phases have very recently bee…
Quantum-embedding description of the Anderson lattice model with the ghost Gutzwiller Approximation
Marius S. Frank, Tsung-Han Lee, Gargee Bhattacharyya +5
We present benchmark calculations of the Anderson lattice model based on the recently-developed "ghost Gutzwiller approximation". Our analysis shows that, in some parameters regime…
Efficient slave-boson approach for multiorbital two-particle response functions and superconductivity
Tsung-Han Lee, Nicola Lanata, Minjae Kim +1
We develop an efficient approach for computing two-particle response functions and interaction vertices for multiorbital strongly correlated systems based on fluctuation around rot…
Unusually thick metal-insulator domain walls around the Mott point
M. Y. Suárez-Villagrán, N. Mitsakos, Tsung-Han Lee +3
Many Mott systems feature a first-order metal-insulator transition at finite temperatures, with an associated phase coexistence region displaying inhomogeneities and local phase se…
Ultrafast triggering of insulator-metal transition in two-dimensional VSe
Deepnarayan Biswas, Alfred J. H. Jones, Paulina Majchrzak +24
Assembling transition metal dichalcogenides (TMDCs) at the two-dimensional (2D) limit is a promising approach for tailoring emerging states of matter such as superconductivity or c…
Bypassing the computational bottleneck of quantum-embedding theories for strong electron correlations with machine learning
John Rogers, Tsung-Han Lee, Sahar Pakdel +5
A cardinal obstacle to performing quantum-mechanical simulations of strongly-correlated matter is that, with the theoretical tools presently available, sufficiently-accurate comput…
Hybridization effect on the X-ray absorption spectra for actinide materials: Application to PuB
Wei-ting Chiu, Roxanne M. Tutchton, Giacomo Resta +5
Studying the local moment and 5-electron occupations sheds insight into the electronic behavior in actinide materials. X-ray absorption spectroscopy (XAS) has been a powerful to…
The two-dimensional disordered Mott metal-insulator transition
M. Y. Suárez-Villagrán, N. Mitsakos, Tsung-Han Lee +3
We studied several aspects of the Mott metal-insulator transition in the disordered case. The model on which we based our analysis is the disordered Hubbard model, which is the sim…
Rotationally invariant slave-boson and density matrix embedding theory: A unified framework and a comparative study on the 1D and 2D Hubbard Model
Tsung-Han Lee, Thomas Ayral, Yong-Xin Yao +2
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 (RI…
Pairing Mechanism in Hunds Metal Superconductors and the Universality of the Superconducting Gap to Critical Temperature Ratio
Tsung-Han Lee, Andrey Chubukov, Hu Miao +1
We analyze a simple model containing the physical ingredients of a Hund's metal, the local spin fluctuations with power-law correlators, , with greater than one, i…
Uncovering the Origin of Divergence in the CsM(CrO) (M = La, Pr, Nd, Sm, Eu; Am) Family through Examination of the Chemical Bonding in a Molecular Cluster and by Band Structure Analysis
Shane S. Galley, Alexandra A. Arico, Tsung-Han Lee +12
A series of f-block chromates, CsM(CrO) (M = La, Pr, Nd, Sm, Eu; Am), were prepared revealing notable differences between the AmIII derivatives and their lanthanide analogs…
Critical role of electronic correlations in determining crystal structure of transition metal compounds
Nicola Lanatà, Tsung-Han Lee, Yong-Xin Yao +2
The choice that a solid system "makes" when adopting a crystal structure (stable or metastable) is ultimately governed by the interactions between electrons forming chemical bonds.…
Dynamical Mean Field Theory, Density-Matrix Embedding Theory and Rotationally Invariant Slave Bosons: a Unified Perspective
Thomas Ayral, Tsung-Han Lee, Gabriel Kotliar
We present a unified perspective on Dynamical Mean Field Theory (DMFT), Density-Matrix Embedding Theory (DMET) and Rotationally Invariant Slave Bosons (RISB). We show that DMET can…
Emergent Bloch Excitations in Mott Matter
Nicola Lanatà, Tsung-Han Lee, Yongxin Yao +1
We develop a unified theoretical picture for excitations in Mott systems, portraying both the heavy quasiparticle excitations and the Hubbard bands as features of an emergent Fermi…
Fate of spinons at the Mott point
Tsung-Han Lee, Serge Florens, Vladimir Dobrosavljevic
Gapless spin liquids have recently been observed in several frustrated Mott insulators, with elementary spin excitations - "spinons" - reminiscent of degenerate Fermi systems. Howe…
Gate-tuned two-channel Kondo screening by graphene leads: Universal scaling of the nonlinear conductance
Tsung-Han Lee, Kenneth Yi-Jieh Zhang, Chung-Hou Chung +1
Based on the non-crossing approximation, we calculate both the linear and nonlinear conductance within the two-lead two-channel single-impurity Anderson model where the conduction…
Tunable Fano-Kondo resonance in side-coupled double quantum dot system
Chung-Hou Chung, Tsung-Han Lee
We study the interference between the Fano and Kondo effects in a side-coupled double-quantum- dot system where one of the quantum dots couples to conduction electron bath while th…