Exotic states of matter with polariton chains
Physical Review B
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Kalinin, K., Lagoudakis, P., & Berloff, N. (2018). Exotic states of matter with polariton chains. Physical Review B, 97 (16) https://doi.org/10.1103/PhysRevB.97.161101
We consider linear periodic chains of exciton-polariton condensates formed by pumping polaritons nonresonantly into a linear network. To the leading order such a sequence of condensates establishes relative phases as to minimize a classical one-dimensional XY Hamiltonian with nearest and next-to-nearest neighbors. We show that the low-energy states of polaritonic linear chains demonstrate various classical regimes: ferromagnetic, antiferromagnetic, and frustrated spiral phases where quantum or thermal fluctuations are expected to give rise to a spin-liquid state. At the same time nonlinear interactions at higher pumping intensities bring about phase chaos and novel exotic phases.
The authors acknowledge the support of the Skoltech NGP Program (Skoltech-MIT joint project). K.P.K. acknowledges the financial support from Cambridge Trust and EPSRC.
External DOI: https://doi.org/10.1103/PhysRevB.97.161101
This record's URL: https://www.repository.cam.ac.uk/handle/1810/294522