Whittaker, C.E., Cancellieri, E., Walker, P.M. et al. (10 more authors) (2018) Exciton-polaritons in a two-dimensional Lieb lattice with spin-orbit coupling. Physical Review Letters , 120. 097401. ISSN 0031-9007
Abstract
We study exciton-polaritons in a two-dimensional Lieb lattice of micropillars. The energy spectrum of the system features two flat bands formed from $S$ and $P_{x,y}$ photonic orbitals, into which we trigger bosonic condensation under high power excitation. The symmetry of the orbital wave functions combined with photonic spin-orbit coupling gives rise to emission patterns with pseudospin texture in the flat band condensates. Our work shows the potential of polariton lattices for emulating flat band Hamiltonians with spin-orbit coupling, orbital degrees of freedom and interactions.
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Copyright, Publisher and Additional Information: | © 2018 American Physical Society. This is an author produced version of a paper subsequently published in Physical Review Letters. Uploaded in accordance with the publisher's self-archiving policy. | ||||||
Keywords: | cond-mat.mes-hall; cond-mat.mes-hall | ||||||
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Institution: | The University of Sheffield | ||||||
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) | ||||||
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Depositing User: | Symplectic Sheffield | ||||||
Date Deposited: | 18 May 2017 12:28 | ||||||
Last Modified: | 22 Jul 2020 07:54 | ||||||
Published Version: | https://doi.org/10.1103/PhysRevLett.120.097401 | ||||||
Status: | Published | ||||||
Publisher: | American Physical Society | ||||||
Refereed: | Yes | ||||||
Identification Number: | https://doi.org/10.1103/PhysRevLett.120.097401 | ||||||
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