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63 papers · 1 filter
Coherently synchronized oscillations in many-body localization
Zi-Jian Li, Yi-Ting Tu, Sankar Das Sarma
We find an unexpected phenomenon of coherently synchronized oscillations in a mirror-symmetric many-body localized system. A synchronization transition of the spin oscillations is…
Many-body localization in a slowly varying potential
Zi-Jian Li, Yi-Ting Tu, Sankar Das Sarma
We study many-body localization (MBL) in a nearest-neighbor hopping 1D lattice with a slowly varying (SV) on-site potential with . The corresponding non…
Geometric Delocalization in Two Dimensions
Laura Shou, Alireza Parhizkar, Victor Galitski
We demonstrate the existence of transient two-dimensional surfaces where a random-walking particle escapes to infinity in contrast to localization in standard flat 2D space. We fir…
Interacting quasiperiodic spin chains in the prethermal regime
Yi-Ting Tu, David M. Long, Sankar Das Sarma
Recent progress in the study of many-body localization (MBL) in strongly disordered interacting spin chains has emphasized the importance of distinguishing finite time prethermal b…
Neural network based deep learning analysis of semiconductor quantum dot qubits for automated control
Jacob R. Taylor, Sankar Das Sarma
Machine learning offers a largely unexplored avenue for improving noisy disordered devices in physics using automated algorithms. Through simulations that include disorder in physi…
Absence of disordered Thouless pumps at finite frequency
Dominik Vuina, David M. Long, Philip J. D. Crowley +1
A Thouless pump is a slowly driven one-dimensional band insulator which pumps charge at a quantised rate. Previous work showed that pumping persists in weakly disordered chains, an…