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Ψ in the sky

A Correction to this article was published on 03 November 2015

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Quantum technologies, including quantum sensors, quantum communication and quantum metrology, represent a growing industry. Out in space, such technologies can revolutionize the way we communicate and observe our planet.

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Figure 1: With increasing sensitivity, more features contribute to gravity measurements.

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  • 20 October 2015

    In the Commentary 'Ψ in the sky' (Nature Physics 11, 615–617; 2015), the resolution of GOCE in Fig. 1 was misleading. The spatial resolution of GOCE is application specific, and in fact can reach less than 100 km for a recovery error of the geoid of 2 cm. This has now been clarified in the online versions after print 20 October 2015.


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K.B., M.H. and Y.S. are members of the UK NQT Hub in Sensors and Metrology and acknowledge funding from EPSRC (within grant EP/M013294/1) and Dstl.

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Correspondence to Kai Bongs.

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Bongs, K., Holynski, M. & Singh, Y. Ψ in the sky. Nature Phys 11, 615–617 (2015).

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