Quantum Hall phase emerging in an array of atoms interacting with photons
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2020
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866910841224298496 |
|---|---|
| author | Poshakinskiy, Alexander V. Zhong, Janet Ke, Yongguan Olekhno, Nikita A. Lee, Chaohong Kivshar, Yuri S. Poddubny, Alexander N. |
| author_facet | Poshakinskiy, Alexander V. Zhong, Janet Ke, Yongguan Olekhno, Nikita A. Lee, Chaohong Kivshar, Yuri S. Poddubny, Alexander N. |
| contents | Topological quantum phases underpin many concepts of modern physics. While the existence of disorder-immune topological edge states of electrons usually requires magnetic fields, direct effects of magnetic field on light are very weak. As a result, demonstrations of topological states of photons employ synthetic fields engineered in special complex structures or external time-dependent modulations. Here, we reveal that the quantum Hall phase with topological edge states, spectral Landau levels and Hofstadter butterfly can emerge in a simple quantum system, where topological order arises solely from interactions without any fine-tuning. Such systems, arrays of two-level atoms (qubits) coupled to light being described by the classical Dicke model, have recently been realized in experiments with cold atoms and superconducting qubits. We believe that our finding will open new horizons in several disciplines including quantum physics, many-body physics, and nonlinear topological photonics, and it will set an important reference point for experiments on qubit arrays and quantum simulators. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2003_08257 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Quantum Hall phase emerging in an array of atoms interacting with photons Poshakinskiy, Alexander V. Zhong, Janet Ke, Yongguan Olekhno, Nikita A. Lee, Chaohong Kivshar, Yuri S. Poddubny, Alexander N. Quantum Physics Mesoscale and Nanoscale Physics Pattern Formation and Solitons Optics Topological quantum phases underpin many concepts of modern physics. While the existence of disorder-immune topological edge states of electrons usually requires magnetic fields, direct effects of magnetic field on light are very weak. As a result, demonstrations of topological states of photons employ synthetic fields engineered in special complex structures or external time-dependent modulations. Here, we reveal that the quantum Hall phase with topological edge states, spectral Landau levels and Hofstadter butterfly can emerge in a simple quantum system, where topological order arises solely from interactions without any fine-tuning. Such systems, arrays of two-level atoms (qubits) coupled to light being described by the classical Dicke model, have recently been realized in experiments with cold atoms and superconducting qubits. We believe that our finding will open new horizons in several disciplines including quantum physics, many-body physics, and nonlinear topological photonics, and it will set an important reference point for experiments on qubit arrays and quantum simulators. |
| title | Quantum Hall phase emerging in an array of atoms interacting with photons |
| topic | Quantum Physics Mesoscale and Nanoscale Physics Pattern Formation and Solitons Optics |
| url | https://arxiv.org/abs/2003.08257 |