According to the news on the website of the University of science and technology of China on January 29, pan Jianwei, Lu Chaoyang and Zhu Xiaobo of the University of science and technology of China cooperated with Professor Cabello of the University of Seville in Spain to realize deterministic entanglement exchange by using ultra-high-precision superconducting quantum circuits, With the experimental accuracy of more than 43 standard deviations, it is proved that the real number can not completely describe the standard quantum mechanics, and the objective reality of the complex number is established. Relevant research results were recently published in physics review express in the form of "editor's recommendation". The physics website of the American Physical Society and the journal Nature invited international experts to write relevant viewpoint and news & views review articles respectively < p > screenshot of the article published in physics review express < / P > < p > physicists use mathematics to describe the laws of nature. In classical physics, people can write all laws only with real numbers, while complex numbers are introduced subjectively as a convenient calculation tool. With the birth of quantum mechanics, the complex number gradually shows some intuitive non exclusiveness: theoretically, the Schrodinger equation and Heisenberg commutation, which are the cornerstone of quantum mechanics, are written by complex numbers; In experiments, people directly measure the real and imaginary parts of the wave function. This shows that the complex number may not be a subjective computational symbol, but a physical reality that can be detected experimentally < p > experimental results < / P > < p > whether complex numbers must be used in quantum physics is a long-term basic problem. Recently, a team of scientists from Austria, Spain and Switzerland proposed a Bell inequality type test method to verify the necessity of complex numbers by using deterministic entanglement exchange. Participants who abide by quantum physics in the form of real numbers cannot obtain the boundaries allowed in standard quantum theory, thus ruling out the possibility of describing standard quantum mechanics in the form of real numbers. Pan Jianwei's team completed the experiment for the first time in the world based on the superconducting quantum circuit and high-precision quantum manipulation technology independently designed and developed. Under this theoretical framework, the limit of real number form is 7.66, while the experimental test result is 8.09, which exceeds the criterion by 43 standard deviations. The experimental results support the need to use complex numbers in quantum physics < p > physics review express shows that the first authors of the paper are Chen Mingcheng, Wang can and Liu Fengming. The research was supported by NSFC, Chinese Academy of Sciences, Ministry of science and technology, Ministry of education and Anhui Province