Search Results - "Scalettar, R. T"

Quantum Monte Carlo Simulations of the 2D Su-Schrieffer-Heeger Model by Xing, Bo, Chiu, Wei-Ting, Poletti, Dario, Scalettar, R T, Batrouni, George

“…Over the past several years, a new generation of quantum simulations has greatly expanded our understanding of charge density wave phase transitions in…”
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Quantum critical points and the sign problem by Mondaini, R, Tarat, S, Scalettar, R T

“…The "sign problem" (SP) is a fundamental limitation to simulations of strongly correlated matter. It is often argued that the SP is not intrinsic to the…”
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Phonon Dispersion and the Competition between Pairing and Charge Order by Costa, N C, Blommel, T, Chiu, W-T, Batrouni, G, Scalettar, R T

“…The Holstein model describes the interaction between fermions and a collection of local (dispersionless) phonon modes. In the dilute limit, the phonon degrees…”
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Geometry dependence of the sign problem in quantum Monte Carlo simulations by Iglovikov, V. I., Khatami, E., Scalettar, R. T.

“…The sign problem is the fundamental limitation to quantum Monte Carlo simulations of the statistical mechanics of interacting fermions. Determinant quantum…”
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Charge Order in the Holstein Model on a Honeycomb Lattice by Zhang, Y-X, Chiu, W-T, Costa, N C, Batrouni, G G, Scalettar, R T

“…The effect of electron-electron interactions on Dirac fermions, and the possibility of an intervening spin-liquid phase between the semimetal and…”
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Competition between antiferromagnetic and charge-density-wave order in the half-filled Hubbard-Holstein model by Nowadnick, E A, Johnston, S, Moritz, B, Scalettar, R T, Devereaux, T P

“…We present a determinant quantum Monte Carlo study of the competition between instantaneous on-site Coulomb repulsion and retarded phonon-mediated attraction…”
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Doping evolution of spin and charge excitations in the Hubbard model by Kung, Y. F., Nowadnick, E. A., Jia, C. J., Johnston, S., Moritz, B., Scalettar, R. T., Devereaux, T. P.

“…We shed light on how electronic correlations vary across the phase diagram of the cuprate superconductors, examining the doping evolution of spin and charge…”
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Competing supersolid and Haldane insulator phases in the extended one-dimensional bosonic Hubbard model by Batrouni, G G, Scalettar, R T, Rousseau, V G, Grémaud, B

“…The Haldane insulator is a gapped phase characterized by an exotic nonlocal order parameter. The parameter regimes at which it might exist, and how it competes…”
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Supersolid phases in the one-dimensional extended soft-core bosonic Hubbard model by Batrouni, G G, Hébert, F, Scalettar, R T

“…We present results of quantum Monte Carlo simulations for the soft-core extended bosonic Hubbard model in one dimension exhibiting the presence of supersolid…”
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Mott domains of bosons confined on optical lattices by Batrouni, G G, Rousseau, V, Scalettar, R T, Rigol, M, Muramatsu, A, Denteneer, P J H, Troyer, M

“…In the absence of a confining potential, the boson-Hubbard model exhibits a superfluid to Mott insulator quantum phase transition at commensurate fillings and…”
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Magnetic and superfluid transitions in the one-dimensional spin-1 boson Hubbard model by Batrouni, G G, Rousseau, V G, Scalettar, R T

“…Recent progress in experiments on trapped ultracold atoms has made it possible to study the interplay between magnetism and superfluid-insulator transitions in…”
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Polariton creation in coupled cavity arrays with spectrally disordered emitters by Patton, J T, Norman, V A, Mann, E C, Puri, B, Scalettar, R T, Radulaski, M

“…Integrated photonics has been a promising platform for analog quantum simulation of condensed matter phenomena in strongly correlated systems. To that end, we…”
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Local quantum criticality in confined fermions on optical lattices by Rigol, M, Muramatsu, A, Batrouni, G G, Scalettar, R T

“…Using quantum Monte Carlo simulations, we show that the one-dimensional fermionic Hubbard model in a harmonic potential displays quantum critical behavior at…”
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Superconductivity and lattice instability in compressed lithium from Fermi surface hot spots by Kasinathan, Deepa, Kunes, J, Lazicki, A, Rosner, H, Yoo, C S, Scalettar, R T, Pickett, W E

“…The highest superconducting temperature Tc observed in any elemental metal (Li with Tc approximately 18-20 K at pressure 35-48 GPa) is shown to arise from…”
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Quantum Monte Carlo study of an interaction-driven band-insulator-to-metal transition by Paris, N, Bouadim, K, Hebert, F, Batrouni, G G, Scalettar, R T

“…We study the transitions from band insulator to metal to Mott insulator in the ionic Hubbard model on a two-dimensional square lattice using determinant…”
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First-order isostructural mott transition in highly compressed MnO by YOO, C. S, MADDOX, B, SCALETTAR, R. T, PICKETT, W. E, KLEPEIS, J.-H. P, IOTA, V, EVANS, W, MCMAHAN, A, HU, M. Y, CHOW, P, SOMAYAZULU, M, HÄUSERMANN, D

“…We present evidence for an isostructural, first-order Mott transition in MnO at 105+/-5 GPa, based on high-resolution x-ray emission spectroscopy and…”
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Cerium volume collapse: results from the merger of dynamical mean-field theory and local density approximation by Held, K, McMahan, A K, Scalettar, R T

“…The merger of density-functional theory in the local density approximation and many-body dynamical mean-field theory allows for an ab initio calculation of Ce…”
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Effects of strong interactions in a half-metallic magnet: A determinant quantum Monte Carlo study by Jiang, M., Pickett, W. E., Scalettar, R. T.

“…Understanding the effects of electron-electron interactions in half-metallic magnets (HMs), which have band structures with one gapped spin channel and one…”
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Gapless inhomogeneous superfluid phase with spin-dependent disorder by Jiang, M, Nanguneri, R, Trivedi, N, Batrouni, G G, Scalettar, R T

“…We show that the presence of a spin-dependent random potential in a superconductor or a superfluid atomic gas leads to distinct transitions at which the energy…”
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Insulating ferromagnetism in La4Ba2Cu2O10: an Ab initio wannier function analysis by Ku, Wei, Rosner, H, Pickett, W E, Scalettar, R T

“…Microscopic mechanisms of the puzzling insulating ferromagnetism of half-filled La4Ba2Cu2O10 are elucidated with energy-resolved Wannier states. The dominant…”
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