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Details of Grant 

EPSRC Reference: EP/R04399X/1
Title: Polariton lattices: a solid-state platform for quantum simulations of correlated and topological states
Principal Investigator: Szymanska, Dr MH
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department: Physics and Astronomy
Organisation: UCL
Scheme: Standard Research - NR1
Starts: 23 April 2018 Ends: 22 April 2021 Value (£): 116,174
EPSRC Research Topic Classifications:
EPSRC Industrial Sector Classifications:
Communications No relevance to Underpinning Sectors
Related Grants:
EP/R044058/1 EP/R04385X/1
Panel History:  
Summary on Grant Application Form
The development of quantum simulation lacks compact on-chip scalable platforms. The recent

demonstrations of polariton lattices in semiconductor microcavities, in combination with their

extraordinary nonlinearities, place polaritons as one of the most promising candidates to achieve

this goal. The aim of this proposal is to implement polariton lattices in semiconductor

microcavities as a photonic-based solid-state platform for quantum simulations. The

polariton platform will allow for the engineering of the lattice geometry and site-to-site hoping, state

preparation and detection in individual sites, sensitivity to magnetic fields, and scalability due to the

low value of disorder. The driven-dissipative nature of the system opens the exciting possibility of

studying out-of-equilibrium strongly correlated phases, but it also calls for new theoretical

methods. We will combine the expertise in semiconductor physics and technology of four

experimental groups and the input of three theoretical groups to push polariton nonlinearities into

the strongly interacting regime. We plan on implementing the first polariton simulators by

studying quantum correlations and the topological phases in flat bans and in the presence

of artificial gauge field acting on polaritons in 1D and 2D lattice geometries, both

experimentally and theoretically. This project will provide the first quantum simulation platform

using scalable lattices at optical wavelengths.
Key Findings
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