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New Frontier for Quantum Sensing

Photonics Spectra
Feb 2018
Devices that harness the counterintuitive features of quantum mechanics could signal the start of a second quantum revolution.

MARIE FREEBODY, CONTRIBUTING EDITOR, marie.freebody@photonics.com

Quantum physics is a peculiar field. In the subatomic domain, the usual physical laws no longer apply. Instead, nonintuitive behaviors reign and new laws govern. A case in point is the Heisenberg uncertainty principle, which tells us that it is not possible to know both the exact position and the exact momentum of an object at any one time. Quantum mechanics ­— an idea that started with Planck, Einstein and Heisenberg more than 100 years ago — gave us a better understanding of

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GLOSSARY
laser
A device which operates under the processes of absorption and stimulated emission and by the condition that gain exceeds loss in order to sustain amplification. The term laser is the acronym for Light Amplification by the Stimulated Emission of Radiation.  The standard components of a laser include: 1.) a lasing material known as the gain medium. 2.) a pump source. 3.) laser cavity To achieve lasing, the atoms of a material such as crystal, glass, liquid, dye or gas are excited by...
quantum sensinglaserHeisenbergMarie FreebodyM Squaredquantum gravimeterThales Research and Technologyquantum accelerometersquantum physicsFeatures

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