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Quantum sensor

A quantum sensor is a device that exploits quantum correlations, such as quantum entanglement to achieve a sensitivity or resolution that is better than can achieved using only classical systems.[1]

The Defense Advanced Research Projects Agency has recently launched a research program in optical quantum sensors that seeks to exploit ideas from quantum metrology and quantum imaging, such as quantum lithography and the NOON state, in order to achieve these goals with optical sensor systems such as lidar.[2]

Quantum sensor is also a term used in other settings where entangled quantum systems are exploited to make better atomic clocks,[3] or more sensitive magnetometers.[4][5]


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