A new study conducted by physicists at Heinrich Heine University Düsseldorf (HHU), in collaboration with the German Aerospace Center (DLR), suggests that the fundamental framework of quantum mechanics might not depend on imaginary numbers as previously thought. Traditionally, complex numbers—which include an imaginary component—have been viewed as essential for describing quantum phenomena.
Challenging the Complex Requirement
The research, published in the journal Physical Review Letters, examines a core property of quantum theory. The team demonstrated that the mathematics of the quantum world could potentially be formulated using only real numbers, providing a new perspective on the theory's structural foundations.
The findings have gained significant attention within the scientific community, earning a "Highlight" feature in the American Physical Society's Physics Magazine. While complex numbers remain a convenient tool for calculations, this discovery suggests they may not be a strictly necessary requirement for the physical reality of quantum mechanics.
