Hi,
Answer:
The statement you've provided is accurate. In the context of nuclear fusion, such as the fusion reactions occurring in stars or in experimental fusion reactors, extremely high temperatures are required to overcome the Coulomb barrier, which is the electrostatic force of repulsion between positively charged atomic nuclei. To achieve fusion on Earth, temperatures of at least 100 million degrees Celsius (180 million degrees Fahrenheit) or even higher are necessary to provide enough kinetic energy to the particles so that they can overcome this barrier and fuse together, releasing a tremendous amount of energy in the process. This is the fundamental principle behind fusion as a potential future source of clean and abundant energy.