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Direct measurement of polariton-polariton interaction strength in the Thomas-Fermi regime of exciton-polariton condensation
Published 2020“…The Thomas-Fermi regime has previously been demonstrated only in ultracold atomic gases in thermal equilibrium. In a nonequilibrium exciton-polariton system, this regime offers a novel opportunity to study interaction-driven effects unmasked by an incoherent reservoir.…”
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Journal Article -
22
Realizing type-II Weyl points in an optical lattice
Published 2017“…In this paper, we propose a generalized two level system exhibiting type-II Weyl points that can be realized using ultracold atoms in an optical lattice. The system is engineered using a three-dimensional lattice with complex π phase tunneling amplitudes. …”
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Journal Article -
23
Ultrasensitive measurement of gas refractive index using an optical nanofiber coupler
Published 2019“…The demonstrated sensor not only shows vast potential in ultrasensitive pressure sensing, acoustic sensing, gas sensing, and gas phase biomarker detection, but also provides a new tool for nonlinear optics, ultrafast optics, quantum optics, and ultracold atom optics.…”
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Journal Article -
24
Geometric Ramsey interferometry with a tripod scheme
Published 2024“…We use a resonant tripod scheme in ultracold strontium atoms where the interferometric operation is restricted to a two-dimensional dark-state subspace in the dressed-state picture. …”
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Journal Article -
25
Topological lattice as open quantum system
Published 2024“…My results can be realized in bosonic systems such as ultracold atoms simulations as well as photonic chips. …”
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Final Year Project (FYP) -
26
Experimental investigation of non-Abelian artificial gauge fields: from SU(2) to SU(3)
Published 2023“…Apart from naturally occurring gauge fields, controllable artificial gauge fields can be used to tailor physical effects on quantum systems like neutral atoms, qubits, photons, anions etc. This thesis reports the study of laser-induced artificial non-Abelian gauge fields interacting with an ultracold atomic wave packet in free space. …”
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Thesis-Doctor of Philosophy -
27
Mechanisms for the emergence of Gaussian correlations
Published 2023“…Our work aims at providing an accessible presentation of the potential of atom-chip experiments to explore fundamental aspects of quantum field theories in quantum simulations.…”
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Journal Article