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Abstract:
Some of the most astonishing and prominent properties of quantum mechanics, such as entanglement and Bell nonlocality, have only been studied extensively in low-energy laboratory setups. Rencently, the observation of entanglement and studies of other quantum correlations in collider experiments mark a significant step toward integrating quantum information with high-energy physics. Particle colliders provide vast number of events and rich quantum systems for quantum information studies, and one basic step of these study is to reconstruct the density matrix of the system, known as quantum state tomography. In this talk, I will first revisit the standard steps of quantum tomography for the spin states of massive particles, then I will introduce recent developments of quantum tomography in other systems such as spin states of quark pairs and the flavor states of neutral meson pairs.
Biography:
Kun Cheng, postdoctoral researcher at the University of Pittsburgh with general interests in high-energy phenomenology. I obtained my BS degree (2019) and PhD degree (2024) from Peking University. I have worked on two-Higgs-doublet-model, astrophysics search of ultralight dark matter, BSM phenomenology at future lepton colliders and spin correlation analysis. One of my recent focuses is exploring quantum information of different systems produced in collider environments.
Host: Prof. Jun Gao
Alternative online link：https://meeting.tencent.com/dm/rvqqjSwNDZ0D
Id: 178656321 password: 123456