Two theoretical physicists from the Paul Scheer Institute in Switzerland, in collaboration with Google and university researchers from five countries, have developed and tested a new digital analog hybrid quantum simulator. This simulator not only simulates physical processes with unprecedented accuracy, but also has high flexibility and stronger capabilities, making it suitable for solving a wide range of problems from solid-state physics to astrophysics. This achievement is regarded as an important milestone in the field of quantum computing, and related papers have been published in the latest issue of the journal Nature. How does cold milk spread when dropped into hot coffee? Even the fastest supercomputers find it difficult to simulate this problem with high precision because the quantum physics processes behind it are exceptionally complex. In 1982, Nobel laureate Richard Feynman proposed that using traditional computers to solve such problems is more effective than using specially designed quantum simulators to simulate quantum physical processes. With the rapid development of quantum computer technology, Feynman's ideas are gradually becoming a reality. The team achieved an effective combination of digital and analog operating modes with the help of a chip provided by Google, which contains 69 superconducting qubits. In the experiment, they simulated the process of thermal energy entering a solid by setting discrete initial conditions and demonstrated how a quantum simulator achieves thermal equilibrium. This is just one of the many interesting questions that the new quantum simulator can answer. This new research lays the foundation for the development of a universal quantum simulator, whose capabilities far exceed those of current quantum simulators that can only handle specific physics problems, covering multiple different fields of physics. One research topic of hybrid quantum simulators is magnetism. For example, in Google quantum chips, the related characteristics of quantum bits and their magnetic orientation adjustment are crucial for the new generation of computer chips based on electron spin rather than charge, helping to improve memory density and computing speed. In addition, the quantum simulator also has broad application prospects in the development of new materials, such as the development of high-temperature superconductors, more precise and less side effect drugs; In the field of astrophysics, it can be used to study the information paradox about black holes - the principles of quantum physics state that information is not lost, but astrophysicists believe that black holes destroy the information related to their formation. This quantum simulator helps clarify these complex astronomical phenomena. (New Society)