191 citations · 1.1k across the 16 of their papers we have counts for
8 papers · 1 filter
Learning Feynman Diagrams with Tensor Trains
Yuriel Nunez-Fernandez, Matthieu Jeannin, Philipp T. Dumitrescu +4
We use tensor network techniques to obtain high order perturbative diagrammatic expansions for the quantum many-body problem at very high precision. The approach is based on a tens…
Planckian Metal at a Doping-Induced Quantum Critical Point
Philipp T. Dumitrescu, Nils Wentzell, Antoine Georges +1
We numerically study a model of interacting spin- electrons with random exchange coupling on a fully connected lattice. This model hosts a quantum critical point separating tw…
Quantum Quasi-Monte Carlo algorithm for out-of-equilibrium Green functions at long times
Corentin Bertrand, Daniel Bauernfeind, Philipp T. Dumitrescu +3
We extend the recently developed Quantum Quasi-Monte Carlo (QQMC) approach to obtain the full frequency dependence of Green functions in a single calculation. QQMC is a general app…
Quantum Quasi-Monte Carlo Technique for Many-Body Perturbative Expansions
Marjan Maček, Philipp T. Dumitrescu, Corentin Bertrand +3
High order perturbation theory has seen an unexpected recent revival for controlled calculations of quantum many-body systems, even at strong coupling. We adapt integration methods…
Long-lived interacting phases of matter protected by multiple time-translation symmetries in quasiperiodically-driven systems
Dominic V. Else, Wen Wei Ho, Philipp T. Dumitrescu
We show how a large family of interacting nonequilibrium phases of matter can arise from the presence of multiple time-translation symmetries, which occur by quasiperiodically driv…
Tracking the quantized information transfer at the edge of a chiral Floquet phase
Blake R. Duschatko, Philipp T. Dumitrescu, Andrew C. Potter
Two-dimensional arrays of periodically driven qubits can host inherently dynamical topological phases with anomalous chiral edge dynamics. These chiral Floquet phases are formally…
String order parameters for 1d Floquet Symmetry Protected Topological Phases
Ajesh Kumar, Philipp T. Dumitrescu, Andrew C. Potter
Floquet symmetry protected topological (FSPT) phases are non-equilibrium topological phases enabled by time-periodic driving. FSPT phases of 1d chains of bosons, spins, or qubits h…
Shear Viscosity in a Non-Fermi Liquid Phase of a Quadratic Semimetal
Philipp T. Dumitrescu
We study finite temperature transport in the Luttinger-Abrikosov-Beneslavskii phase -- an interacting, scale invariant, non-Fermi liquid phase found in quadratic semimetals. We dev…