Topological exciton-polaritons without a magnetic field
Exciton-polaritons are hybrid particles composed of a superposition of photons and excitons. Through pumping schemes, resonant or non-resonant pumping, they can undergo a phase transition to form a Bose-Einstein Condensate. In this superfluid phase, vortices have been observed in polariton systems....
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sg-ntu-dr.10356-1484062023-02-28T23:12:25Z Topological exciton-polaritons without a magnetic field Seet, Nathan Wei En Liew Chi Hin Timothy School of Physical and Mathematical Sciences TimothyLiew@ntu.edu.sg Science::Physics Exciton-polaritons are hybrid particles composed of a superposition of photons and excitons. Through pumping schemes, resonant or non-resonant pumping, they can undergo a phase transition to form a Bose-Einstein Condensate. In this superfluid phase, vortices have been observed in polariton systems. Past research has shown that a system of interacting lattice of vortices can induce a topological behaviour. This scheme, however, requires the use of a resonant pump. Recently, an experimental work showed that vortices can be imprinted by a non-resonant pump. However, there are no theoretical models explaining this phenomenon yet. In this report, we want to develop a new theoretical model to explain the experimental findings and incorporate them with past research to predict if a lattice of vortices generated by this scheme can induce a topological behaviour. Bachelor of Science in Physics 2021-04-26T04:40:18Z 2021-04-26T04:40:18Z 2021 Final Year Project (FYP) Seet, N. W. E. (2021). Topological exciton-polaritons without a magnetic field. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/148406 https://hdl.handle.net/10356/148406 en application/pdf Nanyang Technological University |
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Science::Physics Seet, Nathan Wei En Topological exciton-polaritons without a magnetic field |
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Exciton-polaritons are hybrid particles composed of a superposition of photons and excitons. Through pumping schemes, resonant or non-resonant pumping, they can undergo a phase transition to form a Bose-Einstein Condensate. In this superfluid phase, vortices have been observed in polariton
systems. Past research has shown that a system of interacting lattice of vortices can induce a topological behaviour. This scheme, however, requires the use of a resonant pump.
Recently, an experimental work showed that vortices can be imprinted by a non-resonant pump. However, there are no theoretical models explaining this phenomenon yet. In this report, we want to develop a new theoretical model to explain the experimental findings and incorporate them with past research to predict if a lattice of vortices generated by this scheme can induce a topological behaviour. |
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Liew Chi Hin Timothy |
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Liew Chi Hin Timothy Seet, Nathan Wei En |
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Final Year Project |
author |
Seet, Nathan Wei En |
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Seet, Nathan Wei En |
title |
Topological exciton-polaritons without a magnetic field |
title_short |
Topological exciton-polaritons without a magnetic field |
title_full |
Topological exciton-polaritons without a magnetic field |
title_fullStr |
Topological exciton-polaritons without a magnetic field |
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Topological exciton-polaritons without a magnetic field |
title_sort |
topological exciton-polaritons without a magnetic field |
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Nanyang Technological University |
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2021 |
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https://hdl.handle.net/10356/148406 |
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