Heisenberg Limit 3x More Valuable Than thought?
New Math Makes Scientists More Certain About Quantum Uncertainties
Excerpts and salient points ~
+ Quantum measurements, at the core of next-generation technologies including quantum computing, quantum cryptography, and ultra-sensitive electronics, may face a new hurdle as system sensitivities brush up against Heisenberg’s Uncertainty Principle.
New statistical calculations suggest the fundamental quantum limits of some sensitive measurements may have been off by a factor of pi.
+ The practical Heisenberg limits in measuring some quantities up to the ultimate quantum sensitivity may be larger than expected—by a factor of pi. This new finding would, according to physicist Wojciech Górecki of the University of Warsaw in Poland, represent “an impediment compared to previous expectations.”
+ Górecki said he and his collaborators arrived at this theoretical limit by applying a branch of math known as Bayesian statistics to familiar quantum measurement problems.
+ Górecki notes that canonical Heisenberg isn’t as much help here as is a related concept called the “Heisenberg limit.” The Heisenberg Limit, he says, delineates the smallest possible uncertainty in a measurement, given a set number of times a system is probed. “It is a natural consequence of Heisenberg’s uncertainty principle, interpreted in a slightly broader context,” says Górecki.
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