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Vincent Liu’s Team from Wilczek Quantum Center Published Paper in Physical Review Letters

Time: 0331 ,2015

Vincent Liu’s Team from Wilczek Quantum Center (WQC) published paper in Physical Review Letters (PRL), which showing ZJUT as the first author. The paper is "Weyl Superfluidity in a Three-dimensional Dipolar Fermi Gas".

Because quantum computers will depend on our ability to control quantum behavior, this paper presents an important advance from high energy particle physics concerning the "Weyl fermion." WQC Director Vincent Liu explains this as follows: "Weyl fermions carry exactly zero mass, so they travel in space with speed of light. Physicists call them right or left-handed because they spin either clockwise or anticlockwise (never in between) about the direction of traveling. For many decades, neutrinos were thought to be the most probable candidates until that idea was ruled out in recent years. High energy experiments actually discovered neutrinos are not exactly massless."

There has been a great hope among physicists to discover an actual Weyl fermion. In this PRL paper, Liu et al. propose a critical step for creating Weyl fermions in a low-energy non-relativistic quantum gas of magnetic dipoles. Somewhat poetically, Vincent Liu said, "Much like a group of well- organized dancers, the atoms produce beautiful waves, moving in the Fermi speed, the equivalent of speed of light in an otherwise non-relativistic system. Much like the duality of optical waves and photons in quantum physics, those waves are Weyl particles."

 

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