30 citations · 77 across the 15 of their papers we have counts for
15 papers
Boundary phases and thermodynamics of the Kondo spin- chain: from overscreened Kondo to boundary-bound states
Abay Zhakenov, Pradip Kattel, Andreas Gleis +1
We study a spin- impurity coupled to the boundary of a strongly correlated spin- Takhtajan--Babujian chain, an integrable model whose low-energy physics is described by…
Interplay of spin-orbit coupling, crystal field splitting and correlations: a ghost rotationally invariant slave boson treatment
Xue Sun, Walber Hugo Brito, Andreas Gleis +4
We investigate the interplay of spin-orbit coupling, crystal field splittings, and electronic correlations in the Hubbard-Kanamori model within the recently formulated gho…
Dynamical scaling near the pseudogap quantum critical point of the two-dimensional Hubbard model
Mathias Pelz, Gabriel Kotliar, Jan von Delft +1
We study dynamical scaling in the quantum-critical fan of the pseudogap-metal to Fermi-liquid transition of the two-dimensional Hubbard model. Using a four-patch dynamical cluster…
Quantum criticality in the two-dimensional Hubbard model
Mathias Pelz, Gabriel Kotliar, Jan von Delft +1
We study the normal-state, doping-driven phase diagram of the square-lattice Hubbard model using the dynamical cluster approximation combined with the numerical renormalization gro…
Symmetric estimator for discrete self-energy of discrete many-body systems
Aleksandrs Zacinskis, Frank T. Ebel, Mathias Pelz +5
We derive a discrete spectral representation of the single-particle self-energy using a discrete evaluation of Kugler's symmetric improved estimator. Our construction can be used o…
Topological Kondo Insulator from Spin Loop Currents
Andreas Gleis, Kevin Lucht, Po-Jui Chen +3
We demonstrate that interacting electrons in AB-stacked realize a topological Kondo insulator at hole filling per moiré unit cell. In the pre…
Liouvillian interpolation of the self-energy of cluster dynamical mean-field theories
Mathias Pelz, Jan von Delft, Andreas Gleis
Two widely-used non-local extensions of dynamical mean-field theory (DMFT), namely cellular DMFT (CDMFT) and the dynamical cluster approximation (DCA), both yield self-energies mar…
Tangent space Krylov computation of real-frequency spectral functions: Influence of density-assisted hopping on 2D Mott physics
Oleksandra Kovalska, Jan von Delft, Andreas Gleis
We present a tangent-space Krylov (TaSK) method for efficient computation of zero-temperature real-frequency spectral functions on top of ground state (GS) matrix product states (M…
Oscillate and Renormalize: Fast Phonons Reshape the Kondo Effect in Flat Band Systems
Liam L. H. Lau, Andreas Gleis, Daniel Kaplan +2
We examine the interplay between electron correlations and phonons in an Anderson-Holstein impurity model with an Einstein phonon. When the phonons are slow compared to charge fluc…
Reply to comment on "Controlled bond expansion for Density Matrix Renormalization Group ground state search at single-site costs"
Andreas Gleis, Jheng-Wei Li, Jan von Delft
We reply to McCulloch and Osborne's recent comment on our manuscript (Phys. Rev. Lett. 130, 246402 (2023)) on controlled bond expansion (CBE) for density matrix renormalization gro…
Dynamical scaling and Planckian dissipation due to heavy-fermion quantum criticality
Andreas Gleis, Seung-Sup B. Lee, Gabriel Kotliar +1
We study dynamical scaling associated with a Kondo-breakdown quantum critical point (KB-QCP) of the periodic Anderson model, treated by two-site cellular dynamical mean-field theor…
Emergent Properties of the Periodic Anderson Model: a High-Resolution, Real-Frequency Study of Heavy-Fermion Quantum Criticality
Andreas Gleis, Seung-Sup B. Lee, Gabriel Kotliar +1
We study paramagnetic quantum criticality in the periodic Anderson model (PAM) using cellular dynamical mean-field theory, with the numerical renormalization group (NRG) as an impu…
Time-dependent variational principle with controlled bond expansion for matrix product states
Jheng-Wei Li, Andreas Gleis, Jan von Delft
We present a controlled bond expansion (CBE) approach to simulate quantum dynamics based on the time-dependent variational principle (TDVP) for matrix product states. Our method al…
Controlled bond expansion for DMRG ground state search at single-site costs
Andreas Gleis, Jheng-Wei Li, Jan von Delft
DMRG ground state search algorithms employing symmetries must be able to expand virtual bond spaces by adding or changing symmetry sectors if these lower the energy. Traditional si…
Projector formalism for kept and discarded spaces of matrix product states
Andreas Gleis, Jheng-Wei Li, Jan von Delft
Any matrix product state has a set of associated kept and discarded spaces, needed for the description of , and changes thereof, respectively. These induce a…