dc.contributor.author | Banerjee, R | |
dc.contributor.author | Liew, TCH | |
dc.contributor.author | Kyriienko, O | |
dc.date.accessioned | 2020-01-14T12:03:01Z | |
dc.date.issued | 2018-08-13 | |
dc.description.abstract | We present a scheme to generate an artificial gauge field for the system of neutral bosons, represented by polaritons in micropillars arranged into a square lattice. The splitting between the two polarizations of the micropillars breaks the time-reversal symmetry (TRS) and results in the effective phase-dependent hopping between cavities. This can allow for engineering a nonzero flux on the plaquette, corresponding to an artificial magnetic field. Changing the phase, we observe a characteristic Hofstadter's butterfly pattern and the appearance of chiral edge states for a finite-size structure. For long-lived polaritons, we show that the propagation of wave packets at the edge is robust against disorder. Moreover, given the inherent driven-dissipative nature of polariton lattices, we find that the system can exhibit topological lasing, recently discovered for active ring cavity arrays. The results point to a static way to realize artificial magnetic field in neutral spinful systems, avoiding the periodic modulation of the parameters or strong spin-orbit interaction. Ultimately, the described system can allow for high-power topological single-mode lasing which is robust to imperfections. | en_GB |
dc.description.sponsorship | Ministry of Education, Singapore | en_GB |
dc.identifier.citation | Vol. 98 (7), article 075412 | en_GB |
dc.identifier.doi | 10.1103/PhysRevB.98.075412 | |
dc.identifier.grantnumber | M0E2017-T2-1-001 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/40406 | |
dc.language.iso | en | en_GB |
dc.publisher | American Physical Society | en_GB |
dc.rights | © 2018 American Physical Society | en_GB |
dc.title | Realization of Hofstadter's butterfly and a one-way edge mode in a polaritonic system | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2020-01-14T12:03:01Z | |
dc.identifier.issn | 2469-9950 | |
dc.description | This is the final version. Available from the American Physical Society via the DOI in this record | en_GB |
dc.identifier.journal | Physical Review B | en_GB |
dc.rights.uri | http://www.rioxx.net/licenses/all-rights-reserved | en_GB |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2018-08-13 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2020-01-14T12:01:54Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2020-01-14T12:03:07Z | |
refterms.panel | B | en_GB |