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Quantum fluctuations can promote or inhibit glass formation
Thomas E. Markland, Joseph A. Morrone, B. J. Berne +3
The very nature of glass is somewhat mysterious: while relaxation times in glasses are of sufficient magnitude that large-scale motion on the atomic level is essentially as slow as…
Transport through a quantum dot with excitonic dot-lead coupling
Florian Elste, David R. Reichman, Andrew J. Millis
We study the effect of a dot-lead interaction on transport through a quantum dot hybridized to two semi-infinite Luttinger-liquid leads. A bosonization approach is applied to treat…
Dynamical Mean-Field Theory for Quantum Chemistry
Nan Lin, C. A. Marianetti, Andrew J. Millis +1
The dynamical mean-field concept of approximating an unsolvable many-body problem in terms of the solution of an auxiliary quantum impurity problem, introduced to study bulk materi…
Numerically exact path integral simulation of nonequilibrium quantum transport and dissipation
Dvira Segal, Andrew J. Millis, David R. Reichman
We develop an iterative, numerically exact approach for the treatment of nonequilibrium quantum transport and dissipation problems that avoids the real-time sign problem associated…
Bold Line Diagrammatic Monte Carlo Method: General formulation and application to expansion around the Non-Crossing Approximation
Emanuel Gull, David R. Reichman, Andrew J. Millis
We present a general framework for performing "bold-line" diagrammatic Monte Carlo calculations based on using an analytical partial resummation as a starting point for stochastica…
Conductivity of disordered quantum lattice models at infinite temperature: Many-body localization
Timothy C. Berkelbach, David R. Reichman
We reinvestigate the behavior of the conductivity of several disordered quantum lattice models at infinite temperature using exact diagonalization. Contrary to the conclusion drawn…