1.4k 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 ScientifiqueFR399 papers
- Laboratoire de Physique Théorique et ModélisationFR273 papers
- Analyse, Géométrie et ModélisationFR97 papers
- Université Pierre-et-Marie-CurieFR44 papers
- Université Paris-SudFR40 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR30 papers
- Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et AtmosphèresFR29 papers
- Observatoire de ParisFR29 papers
- Equipes Traitement de l'Information et SystèmesFR22 papers
- Université Paris-SaclayFR21 papers
- CEA Paris-SaclayFR19 papers
- Université Toulouse III - Paul SabatierFR19 papers
52 papers · 1 filter
Thermodynamic properties of the Shastry-Sutherland model throughout the dimer-product phase
Alexander Wietek, Philippe Corboz, Stefan Wessel +3
The thermodynamic properties of the Shastry-Sutherland model have posed one of the longest-lasting conundrums in frustrated quantum magnetism. Over a wide range on both sides of th…
Out-of-equilibrium transport in the interacting resonant level model: the surprising relevance of the boundary sine-Gordon model
Kemal Bidzhiev, Grégoire Misguich, Hubert Saleur
Using time-dependent density matrix renormalization group calculations we study the transport properties ( curves and shot noise) of the interacting resonant level model (IRLM…
Thermodynamic properties of the Shastry-Sutherland model from quantum Monte Carlo simulations
Stefan Wessel, Ido Niesen, Jonas Stapmanns +4
We investigate the minus-sign problem that afflicts quantum Monte Carlo (QMC) simulations of frustrated quantum spin systems, focusing on spin S=1/2, two spatial dimensions, and th…
Thermal Critical Points and Quantum Critical End Point in the Frustrated Bilayer Heisenberg Antiferromagnet
Jonas Stapmanns, Philippe Corboz, Frederic Mila +3
We consider the finite-temperature phase diagram of the frustrated Heisenberg bilayer. Although this two-dimensional system may show magnetic order only at zero temperatu…
Unified Phase Diagram of Antiferromagnetic SU(N) Spin Ladders
Andreas Weichselbaum, Sylvain Capponi, Philippe Lecheminant +2
Motivated by near-term experiments with ultracold alkaline-earth atoms confined to optical lattices, we establish numerically and analytically the phase diagram of two-leg SU()…
Matrix Product State description of the Halperin States
Valentin Crepel, Benoit Estienne, B. Andrei Bernevig +2
Many fractional quantum Hall states can be expressed as a correlator of a given conformal field theory used to describe their edge physics. As a consequence, these states admit an…
"Haldane" phases with ultracold fermionic atoms in double-well optical lattices
P. Fromholz, S. Capponi, P. Lecheminant +2
We propose to realize one-dimensional topological phases protected by SU() symmetry using alkali or alkaline-earth atoms loaded into a bichromatic optical lattice. We derive a r…
Efficient Quantum Monte Carlo simulations of highly frustrated magnets: the frustrated spin-1/2 ladder
Stefan Wessel, B. Normand, Frédéric Mila +1
Quantum Monte Carlo simulations provide one of the more powerful and versatile numerical approaches to condensed matter systems. However, their application to frustrated quantum sp…
Non-perturbative methodologies for low-dimensional strongly-correlated systems: From non-abelian bosonization to truncated spectrum methods
Andrew J. A. James, Robert M. Konik, Philippe Lecheminant +2
We review two important non-perturbative approaches for extracting the physics of low-dimensional strongly correlated quantum systems. Firstly, we start by providing a comprehensiv…
A Monte Carlo study of critical properties of strongly diluted magnetic semiconductor (Ga,Mn)As
P. Tomczak, H. T. Diep, P. Jabłoński +1
Within a Monte Carlo technique we examine critical properties of diluted bulk magnetic semiconductor (Ga,Mn)As modeled by a strongly diluted ferromagnetic Heisenberg spin-$\frac{5}…
Bubble phase at for a spinless hollow-core interaction
Grégoire Misguich, Thierry Jolicoeur, Takahiro Mizusaki
We investigate fractional quantum Hall states for model interactions restricted to a repulsive hard-core. When the hard-core excludes relative angular momentum between spinle…
Finite-Temperature Dynamics and Thermal Intraband Magnon Scattering in Haldane Spin-One Chains
Jonas Becker, Thomas Köhler, Alexander C. Tiegel +3
The antiferromagnetic spin-one chain is considerably one of the most fundamental quantum many-body systems, with symmetry protected topological order in the ground state. Here, we…
Breakdown of Magnons in a Strongly Spin-Orbital Coupled Magnet
Stephen M. Winter, Kira Riedl, Pavel A. Maksimov +3
The description of quantized collective excitations stands as a landmark in the quantum theory of condensed matter. A prominent example occurs in conventional magnets, which suppor…
Lattice spin models for non-Abelian Chiral Spin Liquids
P. Lecheminant, A. M. Tsvelik
We suggest a class of two-dimensional lattice spin Hamiltonians describing non-Abelian SU(2) chiral spin liquids - spin-analogues of fractional non-Abelian quantum Hall states- wit…
Magnetic properties of perovskites LaSrMnMnTiO:Monte Carlo simulation versus experiments
Samia Yahyaoui, Sami Kallel, H. T. Diep
This work presents a Monte Carlo study of the phase transition in the perovskites LaSrMnMnTiO (= 0.1, 0.2, and 0.25). We take…
Multi-triplet bound states and finite-temperature dynamics in highly frustrated quantum spin ladders
Andreas Honecker, Frédéric Mila, B. Normand
Low-dimensional quantum magnets at finite temperatures present a complex interplay of quantum and thermal fluctuation effects in a restricted phase space. While some information ab…
One-dimensional two-orbital SU(N) ultracold fermionic quantum gases at incommensurate filling: a low-energy approach
V. Bois, P. Fromholz, P. Lecheminant
We investigate the zero-temperature phase diagram of two-orbital SU(N) fermionic models at incommensurate filling which are directly relevant to strontium and ytterbium ultracold a…
Magnetic excitations in the S = 1/2 antiferromagnetic-ferromagnetic chain compound BaCu2V2O8 at zero and finite temperature
E. S. Klyushina, A. C. Tiegel, B. Fauseweh +7
Unlike most quantum systems which rapidly become incoherent as temperature is raised, strong correlations persist at elevated temperatures in dimer magnets, as revealed by…
Optical conductivity of the Hubbard chain away from half filling
Alexander C. Tiegel, Thomas Veness, Piet E. Dargel +4
We consider the optical conductivity in the metallic phase of the one-dimensional Hubbard model. Our results focus on the vicinity of half filling and the frequency regime…
Dynamical properties of the sine-Gordon quantum spin magnet Cu-PM at zero and finite temperature
Alexander C. Tiegel, Andreas Honecker, Thomas Pruschke +4
The material copper pyrimidine dinitrate (Cu-PM) is a quasi-one-dimensional spin system described by the spin-1/2 XXZ Heisenberg antiferromagnet with Dzyaloshinskii-Moriya interact…
Thermodynamic properties of highly frustrated quantum spin ladders: influence of many-particle bound states
A. Honecker, S. Wessel, R. Kerkdyk +3
Quantum antiferromagnets have proven to be some of the cleanest realizations available for theoretical, numerical, and experimental studies of quantum fluctuation effects. At finit…
Massless renormalization group flow in SU(N) perturbed conformal field theory
P. Lecheminant
We investigate the infrared properties of SU(N) conformal field theory perturbed by its adjoint primary field in 1+1 dimensions. The latter field theory is shown to govern the…
ESR modes in a Strong-Leg Ladder in the Tomonaga-Luttinger Liquid Phase
M. Ozerov, M. Maksymenko, J. Wosnitza +6
Magnetic excitations in the strong-leg quantum spin ladder compound (CHN)CuBr (known as DIMPY) in the field-induced Tomonaga-Luttinger spin liquid phase are stud…
Competing superconducting instabilities in the one-dimensional p-band degenerate cold fermionic system
V. Bois, S. Capponi, P. Lecheminant +1
The zero-temperature phase diagram of -orbital two-component fermionic system loaded into a one-dimensional optical lattice is mapped out by means of analytical and numerical te…