Quantum Sensors for GPS-free Orientation
Can quantum sensors change GPS technology?
How can we navigate airliners or allow military vehicles to remain on course without GPS or satellite signals? This is a challenge for which quantum inertial sensors offer an answer. Harnessing quantum technology, they can take ultrasensitive acceleration measurements in three dimensions and any orientation.
On the one hand, the optimal inertial sensor for navigation must transmit signals constantly at a high rate and, on the other, stay precise and sensitive over prolonged periods. Classic inertial sensors fulfill the first criterion, yet they err with time. On the other hand, quantum sensors are exceptionally precise and also sensitive. However, measures are followed by the dead time. By blending both sensor technologies, a group of scientists led by a CNRS scientist has actually created the first multidimensional hybrid quantum inertial sensor.
An article published in Science Advances shows that their device transmits a stable signal at the rate of a classic sensor yet with 50 times greater precision, utilizing in situ, real-time calibration enabled by quantum measurements. Such an instrument can be used to continually measure and track acceleration in 3 dimensions despite the position of the sensor. The full potential of these properties might be understood through onboard applications regarding airplane navigation without the help of global navigation satellite systems (GNSSs).
Read the original article on PHYS.
Read more: China’s New Quantum Computer Has One Million Times The Power Of Google’s.
