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清华大学材料科学与工程院《材料科学论坛》:复合材料的可持续发展:从纳米多功能复合...
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报告题目:
Supremacy of quantum senses
 报告人:
刘仁保教授
香港中文大学教授
报告时间:
2024-04-24 16:00
报告地点:
清华大学高等研究院(科学馆)104报告厅
主办单位:
清华大学高等研究院
  简介:

In the fields of computing and communications, quantum supremacy is well known. Quantum sensing can improve resolution, sensitivity, and accuracy of imaging, detection, and metrology. The question is, does quantum sensing have the so-called quantum supremacy, i.e., can it accomplish certain tasks that classical methods cannot? There are studies indicating that the answer may be positive. For example, Aharonov et al found that using quantum measurements, certain physical experiments can be exponentially accelerated. Our study also shows that quantum probes can probe the thermodynamics of environmental systems in the complex plane by using the intrinsic complex phase factors brought about by quantum evolution. In addition, we can select two different effects, namely, the probe-driven evolution of the environment or the environment-driven evolution of the probe, by preparing the initial state of the probe and selecting a certain measurement basis, so that we can detect any type of quantum correlations and realize the exponential expansion of the accessible correlations in an environment. Future research may reveal more aspects of quantum supremacy in detection applications. 

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