Many-body localization in the age of classical computing

P Sierant, M Lewenstein, A Scardicchio… - Reports on Progress …, 2024 - iopscience.iop.org
Statistical mechanics provides a framework for describing the physics of large, complex
many-body systems using only a few macroscopic parameters to determine the state of the …

Challenges to observation of many-body localization

P Sierant, J Zakrzewski - Physical Review B, 2022 - APS
We study time dynamics of 1D disordered Heisenberg spin-1/2 chains focusing on a regime
of large system sizes and a long-time evolution. This regime is relevant for observation of …

Thouless time analysis of Anderson and many-body localization transitions

P Sierant, D Delande, J Zakrzewski - Physical Review Letters, 2020 - APS
Spectral statistics of disordered systems encode Thouless and Heisenberg timescales,
whose ratio determines whether the system is chaotic or localized. We show that the scaling …

Coherent control of a multi-qubit dark state in waveguide quantum electrodynamics

M Zanner, T Orell, CMF Schneider, R Albert… - Nature Physics, 2022 - nature.com
Superconducting qubits in a waveguide have long-range interactions mediated by photons
that cause the emergence of collective states. Destructive interference between the qubits …

Transmon platform for quantum computing challenged by chaotic fluctuations

C Berke, E Varvelis, S Trebst, A Altland… - Nature …, 2022 - nature.com
From the perspective of many-body physics, the transmon qubit architectures currently
developed for quantum computing are systems of coupled nonlinear quantum resonators. A …

Stability of many-body localization in Floquet systems

P Sierant, M Lewenstein, A Scardicchio, J Zakrzewski - Physical Review B, 2023 - APS
We study many-body localization (MBL) transition in disordered Floquet systems using a
polynomially filtered exact diagonalization (POLFED) algorithm. We focus on disordered …

Photon transport in a Bose-Hubbard chain of superconducting artificial atoms

GP Fedorov, SV Remizov, DS Shapiro, WV Pogosov… - Physical Review Letters, 2021 - APS
We demonstrate nonequilibrium steady-state photon transport through a chain of five
coupled artificial atoms simulating the driven-dissipative Bose-Hubbard model. Using …

Experimental characterization of the quantum many-body localization transition

M Gong, GD de Moraes Neto, C Zha, Y Wu, H Rong… - Physical Review …, 2021 - APS
As strength of disorder enhances beyond a threshold value in many-body systems, a
fundamental transformation happens through which the entire spectrum localizes, a …

Direct measurement of nonlocal interactions in the many-body localized phase

B Chiaro, C Neill, A Bohrdt, M Filippone, F Arute… - Physical Review …, 2022 - APS
The interplay of interactions and strong disorder can lead to an exotic quantum many-body
localized (MBL) phase of matter. Beyond the absence of transport, the MBL phase has …

Quantum neuronal sensing of quantum many-body states on a 61-qubit programmable superconducting processor

M Gong, HL Huang, S Wang, C Guo, S Li, Y Wu, Q Zhu… - Science Bulletin, 2023 - Elsevier
Classifying many-body quantum states with distinct properties and phases of matter is one of
the most fundamental tasks in quantum many-body physics. However, due to the …