Resonant dynamics of one-dimensional dipole-conserving Bose-Hubbard model with time-dependent tensor electric fields
Phys. Rev. B 113, 144305 – Published 9 April, 2026
DOI: https://doi.org/10.1103/5vr6-fswh
Abstract
Recently, tensor gauge fields and their coupling to fracton phases of matter have attracted more and more research interest, and a series of novel quantum phenomena arising from the coupling has been predicted. Here, we propose a tunable platform using a one-dimensional dipole-conserving Bose-Hubbard chain subject to a periodically driven quadratic potential, which realizes a time-dependent rank-2 electric field. By tuning the drive frequency into resonance with the on-site interaction, the dynamics of dipoles and fractons change drastically from constrained motion to near-ballistic expansion via absorption of a quanta from the tensor electric fields, while the drive amplitude provides a knob for control. We identify experimentally accessible observables: wave packet radius of dipoles and fractons, which quantifies the speed of expansion, and state populations. Our work provides a possible approach to manipulate the dynamics of dipole-conserving quantum systems via tensor gauge fields.
