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Exploration of localization physics with atomic, molecular, and optical platforms
Jun Gao1,2,3, Hang Li4, Val Zwiller5
1School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
Summary
Anderson localization (AL), a wave phenomenon in disordered systems, is reviewed. Recent advances in optical and atomic systems reveal insights into localization transitions and mobility edges, driving future research.
Area of Science:
- Quantum optics
- Ultracold atomic physics
- Condensed matter physics
Background:
- Anderson localization (AL) arises from coherent interference in disordered potentials.
- It is a fundamental wave phenomenon with universal characteristics.
- Controllable experimental realizations are key in quantum optics and ultracold atomic systems.
Purpose of the Study:
- To review recent advances in localization physics.
- Focus on Anderson localization, quasi-periodic modulation, and mobility edges.
- Highlight experimental progress in optical and atomic systems.
Main Methods:
- Review of theoretical frameworks (Anderson tight-binding model, Aubry-André model).
- Comprehensive analysis of experimental developments in ultracold atomic gases.
- Description of optical platforms like disordered waveguides and fiber loop systems.
Main Results:
- Precise observation and characterization of localization transitions.
- Experimental evidence for the emergence of mobility edges.
- Detailed discussion of system-specific methodologies, diagnostics, and challenges.
Conclusions:
- The interplay of theory and experimental innovation propels the field forward.
- Promising future directions include many-body localization and non-Hermitian systems.
- Synthetic-dimension systems offer new avenues for studying localization phenomena.
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