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Nature 414, 31-32 (1 November 2001) | doi:10.1038/35102143
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Theoretical physics: In search of exact solutions
Michel Héritier
Abstract
Many-body systems, such as electrons flowing in a superconductor, are among the most difficult theoretical problems to study. A new family of exactly solvable models may offer some answers.
During the past 40 years, understanding quantum systems involving many particles has been one of the main goals of theoretical physics. This kind of research is designed not to work out the laws of interactions between particles, but, assuming that these interactions are already known, to calculate their effects on a system of n particles.
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