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08-05
2026
Hong-Ou-Mandel interference between temporally non-overlapping optical pulses and its application to quantum communication
时 间：10:30-11:30, Aug 5, 2026 (Wed)地 点：RM S327, MMW Building内容：Hong-Ou-Mandel (HOM) interference between two indistinguishable photons is a cornerstone of photonic quantum information science and underlies Bell-state measurement (BSM) in measurement-device-independent quantum key distribution (MDI-QKD). Although HOM interference is often associated with photon bunching that requires...
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07-30
2026
Quantum circuit as a lens into quantum phases and phase transitions
时 间：17:00-18:00, July 30, 2026 (Thu)地 点：RM 1-222, FIT Building内容：Quantum systems host fascinating phases like superconductivity, quantum Hall, topological order, etc that have no classical counterpart. Understanding what quantum phases exist and how phase transitions happen between them is the ultimate goal of condensed matter. But this is notoriously hard, especially in systems w...
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07-24
2026
Structural melting in two-dimensional trapped ion crystals
时 间：16:00-16:45, Jul 24, 2026 (Fri)地 点：RM 1-222, FIT Building内容：We investigate the structural properties, including isomerization, and melting behavior of two-dimensional ion crystals in an RF trap, focusing on the effects of ion temperature and trap potential anisotropy. We identify distinct crystal structures that form under varying trapping conditions and temperatures through ex...
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07-24
2026
Trapped-Ion Quantum Simulation of Chemical Dynamics beyond Born-Oppenheimer
时 间：10:00-10:45, Jul 24, 2026 (Fri)地 点：RM 1-222, FIT Building内容：Understanding how molecular vibrations afiect charge and energy transfer in complex chemical and biological systems requires modeling the interactions among the electronic, spin, and vibrational degrees of freedom, which cannot be treated independently, especially when the Born-Oppenheimer approximation breaks down. Tr...
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06-12
2026
Ion-ion entanglement over a 50-km long fibre channel with a compact cavity-coupled quantum network node
时 间：10:30-12:00, Jun 12, 2026 (Fri)地 点：RM S327, MMW Building内容：Quantum networks promise transformative applications in secure communication, distributed quantum computing, sensing, and precision timekeeping. Realising real-world metropolitan-scale quantum networks requires compact, deployable systems capable of distributing entanglement over long distances beyond laboratory conditi...
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06-12
2026
Programmable Quantum Simulator based on Two-Dimensional Trapped Ion Crystals
时 间：09:30-10:30, Jun 12, 2026 (Fri)地 点：RM S327, MMW Building内容：Trapped ions are a versatile platform for quantum simulation of spin models due to their good coherence properties, the possibility to induce variable-range spin-spin interactions as well as the ease of site-resolved single-particle control and readout. We make use of a modified design of a linear Paul trap, which allow...