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06-20
2023
Perturbative quantum simulation
内容： Approximation based on perturbation theory is the foundation for most of the quantitative predictions of quantum mechanics with broad applications in quantum many-body physics. Quantum computin...
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09-21
2023
Characterizing the ultimate potential and limitations of quantum error mitigation
内容： The inevitable accumulation of errors in near-future quantum devices represents a key obstacle in delivering practical quantum advantages, motivating the development of various quantum error-mi...
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04-28
2023
A universal theory of spin squeezing and the experimental realization
内容： Quantum metrology makes use of many-body entangled states to perform measurements with greater precision than would be possible using only classically correlated particles. Discerning states su...
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09-11
2023
Two-dimensional trapped ion crystals, micromotion and qubit state detection
内容： To study potential avenues for scaling up trapped ion crystal size, we built a modified Paul trap with an oblate aspect ratio designed for trapping radial 2-d ion crystals. In this geometry, th...
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10-19
2023
Quantum simulations on an analog-digital trapped-ion quantum system
内容： Our quantum experiment consists of a chain of 171Yb+ ions with individual Raman beam addressing and individual readout. This fully connected system can be configured to run any sequence of sing...
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12-15
2022
New Physics of Spontaneous Symmetry Breaking in the Early Universe
内容： A strong first-order electroweak phase transition provides a possible mechanism to generate baryon asymmetry in the early universe, and it may impact on the thermal environment of dark matter f...