196 citations · 837 across the 17 of their papers we have counts for
17 papers
Precision quantum simulation of magnon spectra and interactions
Trond I. Andersen, Nikita Astrakhantsev, Jeronimo Martinez +329
Quantum simulation promises to advance materials discovery by accurately simulating complex states of matter, their microscopic excitations, and macroscopic response functions. The…
Fractional Chern insulator edges: crystalline effects and optical measurements
Yan-Qi Wang, Johannes Motruk, Andrey Grankin +1
Edge states of chiral topologically ordered phases are commonly described by chiral Luttinger liquids, effective theories that are exact only in the hydrodynamic limit. Motivated b…
Thermalization and Criticality on an Analog-Digital Quantum Simulator
Trond I. Andersen, Nikita Astrakhantsev, Amir H. Karamlou +224
Understanding how interacting particles approach thermal equilibrium is a major challenge of quantum simulators. Unlocking the full potential of such systems toward this goal requi…
Kagome chiral spin liquid in transition metal dichalcogenide moiré bilayers
Johannes Motruk, Dario Rossi, Dmitry A. Abanin +1
At filling of the moiré flat band, transition metal dichalcogenide moiré bilayers will develop kagome charge order. We derive an effective spin model for the resulting loca…
Four-Spin Terms and the Origin of the Chiral Spin Liquid in Mott Insulators on the Triangular Lattice
Tessa Cookmeyer, Johannes Motruk, Joel E. Moore
At strong repulsion, the triangular-lattice Hubbard model is described by spins with nearest-neighbor antiferromagnetic Heisenberg interactions and exhibits conventional 12…
Phase diagram of the anisotropic triangular lattice Hubbard model
Aaron Szasz, Johannes Motruk
In a recent study [Phys. Rev. X 10, 021042 (2020)], we showed using large-scale density matrix renormalization group (DMRG) simulations on infinite cylinders that the triangular la…
Performance of the rigorous renormalization group for first order phase transitions and topological phases
Maxwell Block, Johannes Motruk, Snir Gazit +4
Expanding and improving the repertoire of numerical methods for studying quantum lattice models is an ongoing focus in many-body physics. While the density matrix renormalization g…
Detecting Fractional Chern Insulators in Optical Lattices through Quantized Displacement
Johannes Motruk, Ilyoun Na
The realization of interacting topological states of matter such as fractional Chern insulators (FCIs) in cold atom systems has recently come within experimental reach due to the e…
Critical properties of the many-particle (interacting) Aubry-André model ground-state localization-delocalization transition
Tessa Cookmeyer, Johannes Motruk, Joel E. Moore
As opposed to random disorder, which localizes single-particle wave-functions in 1D at arbitrarily small disorder strengths, there is a localization-delocalization transition for q…
Chiral spin liquid phase of the triangular lattice Hubbard model: a density matrix renormalization group study
Aaron Szasz, Johannes Motruk, Michael P. Zaletel +1
Motivated by experimental studies that have found signatures of a quantum spin liquid phase in organic crystals whose structure is well described by the two-dimensional triangular…
Charge excitation dynamics in bosonic fractional Chern insulators
Xiao-Yu Dong, Adolfo G. Grushin, Johannes Motruk +1
The experimental realization of the Harper-Hofstadter model in ultra-cold atomic gases has placed fractional states of matter in these systems within reach---a fractional Chern ins…
Phase transitions and adiabatic preparation of a fractional Chern insulator in a boson cold atom model
Johannes Motruk, Frank Pollmann
We investigate the fate of hardcore bosons in a Harper-Hofstadter model which was experimentally realized by Aidelsburger et al. [Nature Physics 11 , 162 (2015)] at half filling of…
Density matrix renormalization group on a cylinder in mixed real and momentum space
Johannes Motruk, Michael P. Zaletel, Roger S. K. Mong +1
We develop a variant of the density matrix renormalization group (DMRG) algorithm for two-dimensional cylinders that uses a real space representation along the cylinder and a momen…
Interaction driven phases in the half-filled honeycomb lattice: an infinite density matrix renormalization group study
Johannes Motruk, Adolfo G. Grushin, Fernando de Juan +1
The emergence of the Haldane Chern insulator state due to strong short range repulsive interactions in the half-filled fermionic spinless honeycomb lattice model has been proposed…
Characterization and stability of a fermionic ν=1/3 fractional Chern insulator
Adolfo G. Grushin, Johannes Motruk, Michael P. Zaletel +1
Using the infinite density matrix renormalization group method on an infinite cylinder geometry, we characterize the fractional Chern insulator state in the Haldane honeycomb…
Topological phases in gapped edges of fractionalized systems
Johannes Motruk, Ari M. Turner, Erez Berg +1
Recently, it has been proposed that exotic one-dimensional phases can be realized by gapping out the edge states of a fractional topological insulator. The low-energy edge degrees…
Bose-Hubbard model on two-dimensional line graphs
Johannes Motruk, Andreas Mielke
We construct a basis for the many-particle ground states of the positive hopping Bose-Hubbard model on line graphs of finite 2-connected planar bipartite graphs at sufficiently low…