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In this talk, I will focus on two recent projects from our dysprosium quantum gas experiment. Firstly, we describe a study of entanglement within non-classical spin states of the electronic ground state spin J=8 of dysprosium [1]. This spin can formally be viewed more

In this talk, I will present a setup utilized for synthesizing polarization states of light from orthogonally polarized sub-beams. The goal of implementing this setup more

My talk will be divided into two parts. In the first part, I will discuss a novel design for nanomechanical resonators featuring ultralow dissipation. Low- dissipation nanomechanical resonators are of great importance for various appli- cations including high-sensitivity force sensors, displacement measurements and optomechanics experiments more

Approximate simulation methods play a crucial role in the efficient numerical computation of quantum dynamics in many body spin systems since its exponentially increasing Hilbert space cannot be treated precisely. For my thesis, we have investigated the realm of applicability of a very recently developed phase space method, based on the Monte Carlo sampling more

In this talk I will present the design and implementation of two approaches to generate stable frequencies, the sum of which is kept constant. The first approach locks the sum of two frequencies to a reference signal, using a feedback system called a phase-locked loop. more

In our recent experiments, we have used tailored optical potentials to create homogenous fermionic superfluids in two and three dimensions and measured their excitation spectrum with momentum resolved Bragg spectroscopy. This has allowed us to precisely determine the superfluid gap of these systems and thereby directly compare fermionic superfluids across different dimensionalities. more

Zhichao Guo, CUHK
According to the mean-field description, an atomic Bose-Einstein condensate (BEC) will collapse when the inter-particle interaction is attractive. more

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