14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.7k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.6k papers
- European Organization for Nuclear ResearchCH1.6k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT1.5k papers
- National and Kapodistrian University of AthensGR1.5k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.5k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1.5k papers
- The Ohio State UniversityUS1.5k papers
- National Centre for Nuclear ResearchPL1.5k papers
- Institut de Recherche sur les Lois Fondamentales de l'UniversFR1.5k papers
- A. Alikhanyan National LaboratoryAM1.5k papers
97 papers · 1 filter
Quantum fluctuations determine the spin-flop transition in hematite
Tobias Dannegger, Imre Hagymási, Levente Rózsa +1
Magnetic phase transitions between ordered phases are often understood on the basis of semi-classical spin models. Deviations from the classical description due to the quantum natu…
Semi-Dirac spin liquids and frustrated quantum magnetism on the trellis lattice
Sourin Chatterjee, Atanu Maity, Janik Potten +7
Geometrical frustration in quantum magnets provides a fertile setting for unconventional phases of matter, including quantum spin liquids (QSLs). The trellis lattice, with its comp…
Two-site entanglement in the two-dimensional Hubbard model
Frederic Bippus, Anna Kauch, Gergő Roósz +3
The study of entanglement in strongly correlated electron systems typically requires knowledge of the reduced density matrix. Here, we apply the parquet dynamical vertex approximat…
Screening in Hubbard models with long-range interactions
Florian Gebhard, Kevin Bauerbach, Örs Legeza
We provide solid evidence for the long-standing presumption that model Hamiltonians with short-range interactions faithfully reproduce the physics of the long-range Coulomb interac…
Magnetic phases of the periodic Anderson model in two dimensions
Imre Hagymási
We investigate the ground-state properties of the periodic Anderson model on the square lattice across various band fillings. Employing the infinite projected entangled-pair states…
Hidden quantum correlations in the ground states of quasiclassical spin systems
Levente Rózsa, Dennis Wuhrer, Sebastián A. Díaz +2
Frustrated spin models may lead to the formation of both classical non-collinear spin structures and unique quantum phases including highly entangled quantum spin liquids. Here, we…
The algebraic spin liquid in the SU(6) Heisenberg model on the kagome lattice
Dániel Vörös, Kránitz Péter, Karlo Penc
We explore the Dirac spin liquid (DSL) as a candidate for the ground state of the Mott insulating phase of fermions with six flavors on the Kagome lattice, particularly focusing on…
Phase diagram of the antiferromagnetic - spin- pyrochlore Heisenberg model
Imre Hagymási, Nils Niggemann, Johannes Reuther
We study the phase diagram of the antiferromagnetic - Heisenberg model on the pyrochlore lattice with spins at zero and finite temperatures. We use a combination of…
Stacking of charge-density waves in 2H-NbSe bilayers
Fabrizio Cossu, Dhani Nafday, Krisztian Palotás +4
We employ ab-initio electronic structure calculations to investigate the charge-density waves and periodic lattice distortions in bilayer 2H-NbSe. We demonstrate that the verti…
Loss-induced quantum information jet in an infinite temperature Hubbard chain
Patrik Penc, Cătălin Paşcu Moca, Örs Legeza +3
Information propagation in the one-dimensional infinite temperature Hubbard model with a dissipative particle sink at the end of a semi-infinite chain is studied. In the strongly i…
Two dimensional quantum lattice models via mode optimized hybrid CPU-GPU density matrix renormalization group method
Andor Menczer, Kornél Kapás, Miklós Antal Werner +1
We present a hybrid numerical approach to simulate quantum many body problems on two spatial dimensional quantum lattice models via the non-Abelian ab initio version of the density…
A simple electronic ladder model harboring parafermions
Botond Osváth, Gergely Barcza, Örs Legeza +2
Parafermions are anyons with the potential for realizing non-local qubits that are resilient to local perturbations. Compared to Majorana zero modes, braiding of parafermions imple…
Phase diagram of the chiral SU(3) antiferromagnet on the kagome lattice
Yi Xu, Sylvain Capponi, Ji-Yao Chen +6
Motivated by the search for chiral spin liquids (CSL), we consider a simple model defined on the kagome lattice of interacting SU(3) spins (in the fundamental representation) inclu…
Kardar-Parisi-Zhang scaling in the Hubbard model
Cătălin Paşcu Moca, Miklós Antal Werner, Angelo Valli +2
We explore the Kardar-Parisi-Zhang (KPZ) scaling in the one-dimensional Hubbard model, which exhibits global symmetry at half-filling, for the pseudo-charg…
Crystalline phases and devil's staircase in qubit spin ice
Márk Kondákor, Karlo Penc
Motivated by the recent realization of an artificial quantum spin ice in an array of superconducting qubits with tunable parameters [King {\it et al.}, Science 373, 576 (2021)], we…
Quantum quench dynamics in the Luttinger liquid phase of the Hatano-Nelson model
Balázs Dóra, Miklós Antal Werner, Cătălin Paşcu Moca
We investigate the quantum quench dynamics of the interacting Hatano-Nelson model with open boundary conditions using both abelian bosonization and numerical methods. Specifically,…
Accurate localization of Kosterlitz-Thouless-type quantum phase transitions for one-dimensional spinless fermions
Florian Gebhard, Kevin Bauerbach, Örs Legeza
We investigate the charge-density wave (CDW) transition for one-dimensional spinless fermions at half band-filling with nearest-neighbor electron transfer amplitude and interac…
Enhanced symmetry-breaking tendencies in the pyrochlore antiferromagnet
Imre Hagymási, Vincent Noculak, Johannes Reuther
We investigate the ground-state properties of the nearest-neighbor pyrochlore Heisenberg antiferromagnet using two complementary numerical methods, density-matrix renormaliza…
Density matrix of electrons coupled to phonons and the electron-phonon entanglement content of excited states
Gergő Roósz, Karsten Held
We derive the exact reduced density matrix for the electrons in an analytically solvable electron-phonon model. Here, the electrons are described as a Luttinger liquid that is coup…
Simulating Lindbladian evolution with non-abelian symmetries: Ballistic front propagation in the Hubbard model with a localized loss
Cătălin Paşcu Moca, Miklós Antal Werner, Örs Legeza +3
We develop a non-Abelian time evolving block decimation (NA-TEBD) approach to study of open systems governed by Lindbladian time evolution, while exploiting an arbitrary number of…
Tracing the Mott-Hubbard transition in one-dimensional Hubbard models without Umklapp scattering
Florian Gebhard, Örs Legeza
We apply the density-matrix renormalization group (DMRG) method to a one-dimensional Hubbard model that lacks Umklapp scattering and thus provides an ideal case to study the Mott-H…
The dynamical structure factor of the SU(3) Heisenberg chain: The variational Monte Carlo approach
Dániel Vörös, Karlo Penc
We compute the dynamical spin structure factor of the SU(3) Heisenberg chain variationally using a truncated Hilbert space spanned by the Gutzwiller projected particle-hol…
Magnetization process and ordering of the pyrochlore magnet in a field
Imre Hagymási, Robin Schäfer, Roderich Moessner +1
We study the pyrochlore Heisenberg antiferromagnet in a magnetic field. Using large scale density-matrix renormalization group (DMRG) calculations for clusters up to …
Strong magneto-optical effects in ACr2O4 A=Fe, Co spinel oxides generated by tetrahedrally coordinated transition metal ions
Vilmos Kocsis, Sándor Bordács, Joachim Deisenhofer +5
Magneto-optical effects have been investigated over the infrared{visible spectral range in ACr2O4 (A = Fe, Co) spinel oxides with non-collinear spin orders in their ground states.…