aqora

Tunable transport in the mass-imbalanced Fermi Hubbard model

Philip Zechmann, Alvise Bastianello, Michael Knap

This repository contains code files used to create data and figures for the corresponding publication.

May 24, 20221 citation

Fractonic Luttinger liquids and supersolids in a constrained Bose-Hubbard model

Philip Zechmann, Ehud Altman, Michael Knap +1 more

Dynamical constraints have drastic consequences for the properties of many-particle quantum systems. Here, the authors study the quantum ground state phases in a fracton system of interacting bosons with dipole conservation. Through a combination of low-energy field theory and tensor network simulations, they identify a novel dipole Luttinger liquid phase as well as a fracton analogue of a supersolid state.

arXiv:2210.11072Physical review. B./Physical review. BMay 16, 202343 citations

Data repository for "Competing magnetic orders in a bilayer Hubbard model with ultracold atoms''

Marcell Gall, Nicola Wurz

Jul 30, 20200 citations

Local supersolid in moiré modulated Bose-Hubbard model using density-matrix renormalization group method

Siyu Xie, Qiang Xu, Qian‐Qian Shi +1 more

Chinese Journal of PhysicsJul 30, 20260 citations

Dynamical spectral response of fractonic quantum matter

Philip Zechmann, Julian Boesl, Johannes Feldmeier +1 more

Quantum many-body systems with fractonic excitations can realize fascinating phases of matter. Here, we study the low-energy excitations of a constrained Bose-Hubbard model in one dimension, which conserves the center of mass or, equivalently, the dipole moment in addition to the particle number. This model is known to realize fractonic phases, including a dipole Mott insulator, a dipole Luttinger liquid, and a metastable dipole supersolid. We use tensor network methods to compute spectral functions from the dynamical response of the system and verify predictions from low-energy field theories of the corresponding ground-state phases. We demonstrate the existence of gapped excitations compatible with strong coupling results in a dipole Mott insulator, linear sound modes characteristic of a Luttinger liquid of dipoles, and soft quadratic modes at both zero and finite momenta in a supersolid state with charge density wave order and phase coherence at noninteger filling.Quantum many-body systems with fractonic excitations can realize fascinating phases of matter. Here, we study the low-energy excitations of a constrained Bose-Hubbard model in one dimension, which conserves the center of mass or, equivalently, the dipole moment in addition to the particle number. This model is known to realize fractonic phases, including a dipole Mott insulator, a dipole Luttinger liquid, and a metastable dipole supersolid. We use tensor network methods to compute spectral functions from the dynamical response of the system and verify predictions from low-energy field theories of the corresponding ground-state phases. We demonstrate the existence of gapped excitations compatible with strong coupling results in a dipole Mott insulator, linear sound modes characteristic of a Luttinger liquid of dipoles, and soft quadratic modes at both zero and finite momenta in a supersolid state with charge density wave order and phase coherence at noninteger filling.

arXiv:2310.16084Physical review. B./Physical review. BMar 21, 202410 citations

Data supporting "Neural network decoder for near-term surface-code experiments".

Boris Varbanov, Marc Serra-Peralta, Byfield, David +1 more

This repository contains the datasets and scripts used to generate the figures used in the publication.

Jul 6, 20231 citation

Fractonic Luttinger Liquids and Supersolids in a Constrained Bose-Hubbard Model

Abstract

Related papers

Fractonic Luttinger Liquids and Supersolids in a Constrained Bose-Hubbard Model

Abstract

Related papers