| Autor: |
Stepanenko AA; School of Physics and Engineering, ITMO University, Saint Petersburg 197101, Russia., Lyubarov MD; School of Physics and Engineering, ITMO University, Saint Petersburg 197101, Russia., Gorlach MA; School of Physics and Engineering, ITMO University, Saint Petersburg 197101, Russia. |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2022 May 27; Vol. 128 (21), pp. 213903. |
| DOI: |
10.1103/PhysRevLett.128.213903 |
| Abstrakt: |
Topological phases open a door to such intriguing phenomena as unidirectional propagation and disorder-resilient localization at a stable frequency. Recently discovered higher-order topological phases further extend the concept of topological protection enabling versatile control over localization in multiple dimensions. Motivated by the recent advances in quantum technologies such as large coherently operating qubit ensembles, we predict and investigate the higher-order topological phase of photon pairs emerging due to effective photon-photon interaction and described by the extended version of Bose-Hubbard model. Being feasible for state-of-the-art experimental capabilities, the designed model provides an interesting example of interaction-induced topological transitions in the few-particle two-dimensional system. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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