APS Logo

Correlation-Enhanced Quantized Charge Pumping

ORAL

Abstract

We investigate charge pumping in the vicinity of order-obstructed topological phases. To explore this, we study a prototypical Su-Schreiffer-Heefer model with non-local interaction that gives rise to orbital charge density wave order, and characterize the impact of this order on the model’s topological properties. In the ordered phase, where the many-body topological invariant loses quantization, we find that not only is quantized chage pumping possible, it is assisted by the collective nature of the orbital charge density wave order.

–

Presenters

  • Jacob Marks

    Physics Department, Stanford University, Quantum, X - The Moonshot Factory

Authors

  • Jacob Marks

    Physics Department, Stanford University, Quantum, X - The Moonshot Factory

  • Michael Schüler

    Stanford Institute for Materials and Energy Science (SIMES), Stanford University

  • Jan Budich

    Physics, TU Dresden, Technical University Dresden, Institute of Theoretical Physics, Technische Universitaet Dresden

  • Thomas Devereaux

    Stanford Univ, Materials Science and Engineering, Stanford University, Stanford University, SLAC National Accelerator Laboratory, Photon Sciences, Stanford Linear Accelerator (SLAC), SIMES, SLAC, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, SLAC National Accelerator Lab.