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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
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Floquet Engineering Correlated Materials with Unpolarized Light
1Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA.
Physical Review Letters
|May 14, 2021
Summary
We introduce a new method of Floquet engineering using unpolarized light to modify strongly correlated materials. This technique preserves symmetries and can create novel quantum phases, like a Dirac spin liquid in magnetic insulators.
Area of Science:
- Condensed matter physics
- Quantum materials science
- Photonics and light-matter interactions
Background:
- Floquet engineering uses periodic light to control material properties.
- Traditional methods rely on monochromatic light with varied parameters.
- Strongly correlated systems exhibit complex quantum phenomena.
Purpose of the Study:
- To introduce and explore Floquet engineering with unpolarized light.
- To demonstrate its ability to modify strongly correlated systems.
- To investigate the preservation of original symmetries during this process.
Main Methods:
- Utilizing unpolarized light composed of quasimonochromatic light sources.
- Applying this to insulating magnetic materials on a triangular lattice.
- Analyzing the resulting quantum phases and symmetries.
Main Results:
- Unpolarized light can effectively drive and modify strongly correlated systems.
- The original symmetries of the material are preserved.
- Different types of unpolarized light lead to distinct strongly correlated phases.
- A Dirac spin liquid phase was induced in the example system.
Conclusions:
- Unpolarized light offers a novel and versatile approach to Floquet engineering.
- This method provides a new pathway to realize exotic quantum phases in materials.
- The preservation of symmetries opens possibilities for topological phase control.
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