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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

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Floquet Engineering Topological Many-Body Localized Systems.

K S C Decker¹, C Karrasch¹, J Eisert²

¹Technische Universität Braunschweig, Institut für Mathematische Physik, Mendelssohnstraße 3, 38106 Braunschweig, Germany.

Physical Review Letters

|May 30, 2020

Summary

This summary is machine-generated.

Second-order Floquet engineering enables many-body localization and topological properties in driven systems. This method dynamically controls topological qubits at high energies, overcoming preparation limitations.

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Area of Science:

Quantum Physics
Condensed Matter Physics
Many-Body Systems

Background:

Topological phases of matter are crucial for quantum technologies.
Many-body localization (MBL) defies conventional thermodynamics.
Dynamically controlling topological states at high energies is challenging.

Purpose of the Study:

To realize and control topological properties alongside many-body localization in a driven quantum system.
To overcome limitations in preparing topological states as ground states.
To explore the interplay between Floquet engineering, MBL, and topology.

Main Methods:

Utilizing second-order Floquet engineering to emulate effective three-body interactions from two-body interactions.
Implementing a periodically driven, non-equilibrium system.
Combining Floquet engineering, topology, and many-body localization.

Main Results:

Demonstrated coexistence of many-body localization and topological properties in a driven system.
Successfully implemented and controlled a symmetry-protected topologically ordered qubit at high energies.
Showcased the emulation of topology and disorder within the effective system.

Conclusions:

Floquet engineering offers a powerful route to combine MBL and topological order.
This approach allows dynamic control of topological qubits, leveraging advantages from each subfield.
The findings provide fundamental insights into quantum matter and technological applications.