Stark localization as a resource for weak-field sensing with super-Heisenberg precision

X He, R Yousefjani, A Bayat - Physical Review Letters, 2023 - APS
Gradient fields can effectively suppress particle tunneling in a lattice and localize the wave
function at all energy scales, a phenomenon known as Stark localization. Here, we show …

Emergent dipole moment conservation and subdiffusion in tilted chains

S Nandy, J Herbrych, Z Lenarčič, A Głódkowski… - Physical Review B, 2024 - APS
We study transport in an interacting tilted (Stark) chain. We show that the crossover between
diffusive and subdiffusive relaxation is governed by FL, where F is the strength of the field …

Nonlinearity-enhanced quantum sensing in Stark probes

R Yousefjani, X He, A Carollo, A Bayat - arXiv preprint arXiv:2404.10382, 2024 - arxiv.org
Stark systems in which a linear gradient field is applied across a many-body system have
recently been harnessed for quantum sensing. Here, we explore sensing capacity of Stark …

Interacting Stark localization dynamics in a three-dimensional lattice Bose gas

L Wadleigh, N Kowalski, B DeMarco - Physical Review A, 2023 - APS
We measure the thermalization dynamics of a lattice Bose gas that is Stark localized by a
parabolic potential. A nonequilibrium thermal density distribution is created by quickly …

Disorder free many-body localization transition in two quasiperiodically coupled Heisenberg spin chains

K Gunawardana, B Uchoa - Physical Review B, 2024 - APS
Disorder free many-body localization (MBL) can occur in interacting systems that can
dynamically generate their own disorder. We address the thermal-MBL phase transition of …

Slowest and fastest information scrambling in the strongly disordered XXZ model

M Kim, DH Kim - Physical Review B, 2023 - APS
We present a perturbation method to compute the out-of-time-ordered correlator in the
strongly disordered Heisenberg XXZ model in the deep many-body localized regime. We …

Slow semiclassical dynamics of a two-dimensional Hubbard model in disorder-free potentials

A Kaczmarek, AS Sajna - Physical Review B, 2023 - APS
The quench dynamics of the Hubbard model in tilted and harmonic potentials is discussed
within the semiclassical picture. Applying the fermionic truncated Wigner approximation …

Investigating Stark MBL with Continuous Unitary Transformation Flows

JN Herre, Q Liu, R Rausch, C Karrasch… - arXiv preprint arXiv …, 2024 - arxiv.org
We investigate the ergodicity-to-localization transition in interacting fermion systems
subjected to a spatially uniform electric field. For that we employ the recently proposed …

Quantum Enhanced Sensitivity through Many-Body Bloch Oscillations

H Manshouri, M Zarei, M Abdi, S Bose… - arXiv preprint arXiv …, 2024 - arxiv.org
We investigate the sensing capacity of non-equilibrium dynamics in quantum systems
exhibiting Bloch oscillations. By focusing on resource efficiency of the probe, quantified by …

Exploring Hilbert-Space Fragmentation on a Superconducting Processor

YY Wang, YH Shi, ZH Sun, CT Chen, ZA Wang… - arXiv preprint arXiv …, 2024 - arxiv.org
Isolated interacting quantum systems generally thermalize, yet there are several
counterexamples for the breakdown of ergodicity, such as many-body localization and …