## Riemann hypothesisThe hypothesis was first formulated by Bernhard Riemann in 1859, was included in David Hilbert's list of challenging problems for 20th-century mathematicians, and is widely believed to be true. Yet a proof remains tantalizingly out of reach. What the Riemann hypothesis says is that the non-trivial zeros of the Riemann zeta function all have real part equal to 1/2. Broadly speaking, the hypothesis asserts that there is an underlying order, akin to musical harmonics, in the way prime numbers are distributed. It's known that for any given number n there are approximately n/log n prime numbers that are less than n. The formula
is not exact: sometimes it is a little high and sometimes a little low.
Riemann looked at these deviations and found that they contain periodicities.
His hypothesis quantifies and formalizes this discovery, positing that the
zeros of the zeta function can be regarded as the harmonic frequencies in
the distribution of primes. If the Riemann hypothesis turns out to be true,
what do these harmonics in the "music" of the primes mean? Remarkably, it is been found by the English physicist Michael Berry and his colleagues that there is a deep connection between the harmonics – the Riemann zeros – and the allowable energy states of physical systems that are on the border between the quantum world (see quantum mechanics) and the everyday world of classical physics. ^{1} The Riemann harmonics, or "magic numbers," behave exactly like the energy
levels in quantum systems that classically would be chaotic. This deep
connection between number theory and the physics of the real universe, if
upheld, is utterly astonishing. If the Riemann hypothesis is proved true,
it could open an entirely new window on the nature of reality and the relationship
between the abstract world of mathematics and the behavior of matter and
energy. On the other hand, if it were disproven, there would be an even
deeper mystery to explore: How could the Riemann zeta function so convincingly
mimic a quantum system without actually being one? ## Reference- Berry, Michael. "Quantum Physics on the Edge of Chaos."
*New Scientist*, 116: 44- 47 (1987).
## Related category• NUMBER THEORY | ||||||

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