Publications (62)
Gap States in Dilute Magnetic Alloy Superconductors
Woonki Chung, Mark Jarrell
We study states in the superconducting gap induced by magnetic impurities using self-consistent quantum Monte Carlo with maximum entropy and formally exact analytic continuation me…
Comment on "Measurement of x-ray absorption spectra of overdoped high-temperature cuprate superconductors: Inapplicability of the single-band Hubbard model"
Philip Phillips, Mark Jarrell
In a recent Letter, Peets, et al. measured the x-ray intensity at the oxygen K-edge in overdoped LaSrCuO (LSCO) and TlBaCuO. They claimed th…
Simulation of the electron-phonon interaction in infinite dimensions
J. K. Freericks, Mark Jarrell
The electron-phonon interaction corresponding to the Holstein model (with Coulomb repulsion) is simulated in infinite dimensions using a novel quantum Monte Carlo algorithm. The th…
Imaginary-time quantum many-body theory out of equilibrium II: Analytic continuation of dynamic observables and transport properties
Andreas Dirks, Jong E. Han, Mark Jarrell +1
Within the imaginary-time theory for nonequilibrium in quantum dot systems the calculation of dynamical quantities like Green's functions is possible via a suitable quantum Monte-C…
First-Principle Wannier function analysis of the electronic structure of PdTe: Weaker magnetism and superconductivity
Chinedu E. Ekuma, Chia-Hui Lin, Juana Moreno +2
We report a first-principles Wannier function study of the electronic structure of PdTe. Its electronic structure is found to be a broad three-dimensional Fermi surface with highly…
Thermodynamic Consistency of the Dynamical Mean-Field Theory of the Double-Exchange Model
Randy S. Fishman, Juana Moreno, Thomas Maier +1
Although diagrammatic perturbation theory fails for the dynamical-mean field theory of the double-exchange model, the theory is nevertheless Phi-derivable and hence thermodynamical…
Unconventional Superconductivity from Local Spin Fluctuations in the Kondo Lattice
Oliver Bodensiek, Rok Zitko, Matthias Vojta +2
The explanation of heavy-fermion superconductivity is a long-standing challenge to theory. It is commonly thought to be connected to non-local fluctuations of either spin or charge…
Two-Channel Kondo Lattice: An Incoherent Metal
Mark Jarrell, Hanbin Pang, D. L. Cox +1
The two-channel Kondo lattice model is examined with a Quantum Monte Carlo simulation in the limit of infinite dimensions. We find non-fermi-liquid behavior at low temperatures inc…
Bond excitations in the pseudogap phase of the Hubbard Model
Alexandru Macridin, Mark Jarrell
Using the dynamical cluster approximation, we calculate the correlation functions associated with the nearest neighbor bond operator which measure the z component of the spin excha…
Sign learning kink-based (SiLK) quantum Monte Carlo for molecular systems
Xiaoyao Ma, Randall W. Hall, Frank Loffler +4
The Sign Learning Kink (SiLK) based Quantum Monte Carlo (QMC) method is used to calculate the ab initio ground state energies for multiple geometries of the HO, N, and F$…
What is the valence of Mn in GaMnN?
Ryky Nelson, Tom Berlijn, Juana Moreno +2
We investigate the current debate on the Mn valence in GaMnN, a diluted magnetic semiconductor (DMSs) with a potentially high Curie temperature. From a first-principles…
Study of multiband disordered systems using the typical medium dynamical cluster approximation
Yi Zhang, Hanna Terletska, C. Moore +6
We generalize the typical medium dynamical cluster approximation to multiband disordered systems. Using our extended formalism, we perform a systematic study of the non-local corre…
Interatomic Potential in a Simple Dense Neural Network Representation
Ka-Ming Tam, Nicholas Walker, Samuel Kellar +1
Simulations at the atomic scale provide a direct and effective way to understand the mechanical properties of materials. In the regime of classical mechanics, simulations for the t…
Periodic Anderson model with electron-phonon correlated conduction band
Peng Zhang, Peter Reis, Ka-Ming Tam +4
This paper reports dynamical mean field calculations for the periodic Anderson model in which the conduction band is coupled to phonons. Motivated in part by recent attention to th…
A first principles investigation of cubic BaRuO: A Hund's metal
Nagamalleswararao Dasari, S. R. K. C. Sharma Yamijala, Manish Jain +4
A first-principles investigation of cubic-BaRuO, by combining density functional theory with dynamical mean-field theory and a hybridization expansion continuous time quantum M…
The response to dynamical modulation of the optical lattice for fermions in the Hubbard model
Zhaoxin Xu, Simone Chiesa, Shuxiang Yang +5
Fermionic atoms in a periodic optical lattice provide a realization of the single-band Hubbard model. Using Quantum Monte Carlo simulations along with the Maximum Entropy Method, w…
Quantum critical local spin dynamics near the Mott metal-insulator transition in infinite dimensions
Nagamalleswararao Dasari, N. S. Vidhyadhiraja, Mark Jarrell +1
Finding microscopic models for metallic states that exhibit quantum critical properties such as scaling is a major theoretical challenge. We calculate the local dynamical sp…
Iterated perturbation theory for the attractive Holstein and Hubbard models
J. K. Freericks, Mark Jarrell
A strictly truncated (weak-coupling) perturbation theory is applied to the attractive Holstein and Hubbard models in infinite dimensions. These results are qualified by comparison…
Quantum critical dynamics of a magnetic impurity in a semiconducting host
Nagamalleswararao Dasari, Swagata Acharya, A. Taraphder +3
We have investigated the finite temperature dynamics of the singlet to doublet continuous quantum phase transition in the gapped Anderson impurity model using hybridization expansi…
Magneto-Resistance in the Two-Channel Anderson Lattice
Frithjof B. Anders, Mark Jarrell, D. L. Cox
The paramagnetic phase of the two channel Anderson Lattice model in the Kondo limit is investigated in infinite spatial dimensions using the non-crossing approximation. The resisti…
Phase Diagram of the Two-Channel Kondo Lattice
Mark Jarrell, Hanbin Pang, D. L. Cox
The phase diagram of the two-channel Kondo lattice model is examined with a Quantum Monte Carlo simulation in the limit of infinite dimensions. Commensurate (and incommensurate) an…
Two-dimensional Hubbard-Holstein bipolaron
Alexandru Macridin, George. A. Sawatzky, Mark Jarrell
We present a diagrammatic Monte Carlo study of the properties of the Hubbard-Holstein bipolaron on a two-dimensional square lattice. With a small Coulomb repulsion, U, and with inc…
Synergistic Polaron Formation in the Hubbard-Holstein Model at Small Doping
Alexandru Macridin, Brian Moritz, Mark Jarrell +1
We study the effect of dynamical Holstein phonons on the physics of the Hubbard model at small doping using the dynamical cluster approximation on a cluster. Non-local a…
Spectral properties of the three-dimensional Hubbard model
Sebastian Fuchs, Emanuel Gull, Matthias Troyer +2
We present momentum resolved single-particle spectra for the three-dimensional Hubbard model for the paramagnetic and antiferromagnetically ordered phase obtained within the dynami…
Evolution of the Superconductivity Dome in the two dimensional Hubbard Model
Kuang-Shing Chen, Zi Yang Meng, Shu-Xiang Yang +3
In a recent publication [Chen et al., Phys. Rev. B 86, 165136 (2012)], we identified a line of Lifshitz transition points separating the Fermi liquid and pseudogap regions in the h…
A Maximum Entropy Method of Obtaining Thermodynamic Properties from Quantum Monte Carlo Simulations
Carey Huscroft, Richard Gass, Mark Jarrell
We describe a novel method to obtain thermodynamic properties of quantum systems using Baysian Inference -- Maximum Entropy techniques. The method is applicable to energy values sa…
Absence of the d-Density Wave State in 2D Hubbard Model
Alexandru Macridin, Mark Jarrell, Thomas Maier
Using the Dynamical Cluster Approximation (DCA) we calculate the alternating circulating-current susceptibility and investigate the transition to the d-density wave (DDW) order in…
Lifshitz Transition in the Two Dimensional Hubbard Model
Kuang-Shing Chen, Zi Yang Meng, Thomas Pruschke +2
Using large-scale dynamical cluster quantum Monte Carlo simulations, we study the Lifshitz transition of the two dimensional Hubbard model with next-nearest-neighbor hopping ()…
Complex phases in the doped two-species bosonic Hubbard Model
Kalani Hettiarachchilage, Valéry G. Rousseau, Ka-Ming Tam +2
We study a two-dimensional bosonic Hubbard model with two hard-core species away from half filling using Quantum Monte Carlo simulations. The model includes a repulsive interspecie…
Magnetic phase diagram of the Hubbard model
J. K. Freericks, Mark Jarrell
The competition between commensurate and incommensurate spin-density-wave phases in the infinite-dimensional single-band Hubbard model is examined with quantum Monte Carlo simulati…
Multifractal Study of Quasiparticle Localization in Disordered Superconductors
Conrad Moore, Ka Ming Tam, Yi Zhang +1
The thermal metal to thermal insulator transition due to random disorder is studied in the context of the symmetries of the Bogoliubov de Gennes Hamiltonian. We focus on a three di…
A novel FLEX supplemented QMC approach to the Hubbard model
J. P. Hague, Mark Jarrell, T. C. Schulthess
This paper introduces a novel ansatz-based technique for solution of the Hubbard model over two length scales. Short range correlations are treated exactly using a dynamical cluste…
The relationship between Hirsch-Fye and weak coupling diagrammatic Quantum Monte Carlo methods
Karlis Mikelsons, Alexandru Macridin, Mark Jarrell
Two weak coupling Continuous Time Quantum Monte Carlo (CTQMC) methods are shown to be equivalent for Hubbard-like interactions. A relation between these CTQMC methods and the Hirsc…
Vertex-corrected perturbation theory for the electron-phonon problem with non-constant density of states
J. K. Freericks, V. Zlatic', Woonki Chung +1
A series of weak-coupling perturbation theories which include the lowest-order vertex corrections are applied to the attractive Holstein model in infinite dimensions. The approxima…
"Exhaustion" Physics in the Periodic Anderson Model using Iterated Perturbation Theory
N. S. Vidhyadhiraja, A. N. Tahvildar-Zadeh, Mark Jarrell +1
We discuss the "exhaustion" problem in the context of the Periodic Anderson Model using Iterated Perturbation Theory(IPT) within the Dynamical Mean Field Theory. We find that, desp…
Competition between electron-phonon attraction and weak Coulomb repulsion
J. K. Freericks, Mark Jarrell
The Holstein-Hubbard model is examined in the limit of infinite dimensions. Conventional folklore states that charge-density-wave (CDW) order is more strongly affected by Coulomb r…
Emergence of non-Fermi liquid dynamics through non-local correlations in an interacting disordered system
Sudeshna Sen, N. S. Vidhyadhiraja, Mark Jarrell
We provide strong evidence of a quantum critical point (QCP) associated with the destruction of Kondo screening in the Anderson-Hubbard model for interacting electrons with quenche…
Dynamical Cluster Quantum Monte Carlo Study of the Single Particle Spectra of Strongly Interacting Fermion Gases
Shi-Quan Su, Daniel E. Sheehy, Juana Moreno +1
We study the single-particle spectral function of resonantly-interacting fermions in the unitary regime, as described by the three-dimensional attractive Hubbard model in the dilut…
Approximate scaling relation for the anharmonic electron-phonon problem
J. K. Freericks, V. Zlatic, Mark Jarrell
An approximate scaling relation is found for the transition temperature to a charge-density-wave instability in the anharmonic electron-phonon problem, which maps a wide range of i…
Emergent Strange Nodal Metallicity from Orbital-Selective Mott Physics
Swagata Acharya, Mukul S. Laad, Nagamalleswararao Dasari +3
While a specific kind of strange metal is increasingly found to be the "normal" states in a wide variety of unconventional superconductors, its microscopic origin is presently a ho…
Periodic Anderson model with Holstein phonons for the description of the Cerium volume collapse
Enzhi Li, Shuxiang Yang, Peng Zhang +3
Recent experiments have suggested that the electron-phonon coupling may play an important role in the volume collapse transition in Cerium. A minimal model for t…
Three Dimensional Edwards-Anderson Spin Glass Model in an External Field
Sheng Feng, Ye Fang, Ka-Ming Tam +4
We study the Edwards-Anderson model on a simple cubic lattice with a finite constant external field. We employ an indicator composed of a ratio of susceptibilities at finite wavenu…
The isotope effect in the Hubbard model with local phonons
Alexandru Macridin, Mark Jarrell
The isotope effect (IE) in the two-dimensional Hubbard model with Holstein phonons is studied using the dynamical cluster approximation with quantum Monte Carlo. At small electron-…
Effective Cluster Typical Medium Theory for Diagonal Anderson Disorder Model in One- and Two-Dimensions
Chinedu E. Ekuma, Hanna Terletska, Zi Yang Meng +4
We develop a cluster typical medium theory to study localization in disordered electronic systems. Our formalism is able to incorporate non-local correlations beyond the local typi…
Proximity of the Superconducting Dome and the Quantum Critical Point in the Two-Dimensional Hubbard Model
Shu-Xiang Yang, Herbert Fotso, Shi-Quan Su +6
We use the dynamical cluster approximation to understand the proximity of the superconducting dome to the quantum critical point in the two-dimensional Hubbard model. In a BCS form…
Cooling Atomic Gases With Disorder
Thereza Paiva, Ehsan Khatami, Shuxiang Yang +5
Cold atomic gases have proven capable of emulating a number of fundamental condensed matter phenomena including Bose-Einstein condensation, the Mott transition, Fulde-Ferrell-Larki…
Parallel Tempering Simulation of the three-dimensional Edwards-Anderson Model with Compact Asynchronous Multispin Coding on GPU
Ye Fang, Sheng Feng, Ka-Ming Tam +4
Monte Carlo simulations of the Ising model play an important role in the field of computational statistical physics, and they have revealed many properties of the model over the pa…
Transition Temperature of a Magnetic Semiconductor with Angular Momentum j
Juana Moreno, Randy S. Fishman, Mark Jarrell
We employ dynamical mean-field theory to identify the materials properties that optimize Tc for a generalized double-exchange (DE) model. We reach the surprising conclusion that Tc…
Continuous-Time Quantum Monte Carlo and Maximum Entropy Approach to an Imaginary-Time Formulation of Strongly Correlated Steady-State Transport
Andreas Dirks, Philipp Werner, Mark Jarrell +1
Recently Han and Heary proposed an approach to steady-state quantum transport through mesoscopic structures, which maps the non-equilibrium problem onto a family of auxiliary quant…
Ferromagnetic phase in the polarized two-species bosonic Hubbard Model
Kalani Hettiarachchilage, Valéry G. Rousseau, Ka-Ming Tam +2
We recently studied a doped two-dimensional bosonic Hubbard model with two hard-core species, with different masses, using quantum Monte Carlo simulations [Phys. Rev. B 88, 161101(…
Systematic Quantum Cluster Typical Medium Method For the Study of Localization in Strongly Disordered Electronic Systems
Hanna Terletska, Yi Zhang, Ka Ming Tam +4
Great progress has been made in the last several years towards understanding the properties of disordered electronic systems. In part, this is made possible by recent advances in q…
A local theory for Mott-Anderson localization
Sudeshna Sen, Hanna Terletska, Juana Moreno +2
The paramagnetic metallic phase of the Anderson-Hubbard model (AHM) is investigated using a non-perturbative local moment approach within the framework of dynamical mean field theo…
Nonlocal effects on magnetism in the diluted magnetic semiconductor Ga_{1-x}Mn_{x}As
Unjong Yu, Abdol-Madjid Nili, Karlis Mikelsons +3
The magnetic properties of the diluted magnetic semiconductor Ga_{1-x}Mn_{x}As are studied within the dynamical cluster approximation. We use the k-dot-p Hamiltonian to describe th…
Suppression of superconductivity in the Hubbard model by buckling and breathing phonons
Alexandru Macridin, Brian Moritz, Mark Jarrell +1
We study the effect of buckling and breathing phonons, relevant for cuprate superconductors, on the d-wave superconductivity in the two-dimensional Hubbard model by employing dynam…
Pseudogap and antiferromagnetic correlations in the Hubbard model
Alexandru Macridin, Mark Jarrell, Thomas Maier +2
Using the dynamical cluster approximation and quantum monte carlo we calculate the single-particle spectra of the Hubbard model with next-nearest neighbor hopping . In the unde…
Phase diagram of the Bose-Hubbard model on a ring-shaped lattice with tunable weak links
Kalani Hettiarachchilage, Valéry G. Rousseau, Ka-Ming Tam +2
Motivated by recent experiments on toroidal Bose-Einstein condensates in all-optical traps with tunable weak links, we study the one-dimensional Bose-Hubbard model on a ring-shaped…
Unconventional superconductivity on the triangular lattice Hubbard model
Kuang Shing Chen, Zi Yang Meng, Unjong Yu +3
Using large-scale dynamical cluster quantum Monte Carlo simulations, we explore the unconventional superconductivity in the hole-doped Hubbard model on the triangular lattice. Due…
A multi-orbital iterated perturbation theory for model Hamiltonians and real material-specific calculations of correlated systems
Nagamalleswararao Dasari, Wasim Raja Mondal, Peng Zhang +3
Perturbative schemes utilizing a spectral moment expansion are well known and extensively used for investigating the physics of model Hamiltonians and real material systems. The ad…
The Boson-Hubbard Model on a Kagome Lattice with Sextic Ring-Exchange Terms
Valéry Rousseau, Ka-Ming Tam, Mark Jarrell +1
High order ring-exchange interactions are crucial for the study of quantum fluctuations on highly frustrated systems. We present the first exact quantum Monte Carlo study of a mode…
Locally self-consistent embedding approach for disordered electronic systems
Yi Zhang, Hanna Terletska, Ka-Ming Tam +4
We present a new embedding scheme for the locally self-consistent method to study disordered electron systems. We test this method in a tight-binding basis and apply it to the sing…
Comment on ``Exact bosonization for an interacting Fermi gas in arbitrary dimensions''
Dimitrios Galanakis, Shuxiang Yang, Fakher Assaad +3
This a comment on arXiv:0907.3243v2. We demonstrate that the method proposed by Efetov {\it et. al.} is just a reformulation of the Blankenbeckler, Scalapino, and Sugar approach an…
The anharmonic electron-phonon problem
J. K. Freericks, Mark Jarrell, G. D. Mahan
The anharmonic electron-phonon problem is solved in the infinite-dimensional limit using quantum Monte Carlo simulation. Charge-density-wave order is seen to remain at half filling…