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|Title: ||Is a single photon's wave front observable?|
|Authors: ||Zagoskin, Alexandre M.|
Wilson, Richard D.
Everitt, Mark J.
Gulevich, Dmitry R.
|Issue Date: ||2013|
|Publisher: ||© The Authors. Published by Nature Publishing Group|
|Citation: ||ZAGOSKIN, A.M. ...et al., 2013.Is a single photon's wave front observable? ArXiv:1211.4182.|
|Abstract: ||We propose a method of resolving a spatially coherent signal, which contains on average just a single photon,
against the background of local noise at the same frequency. The method is based on detecting the signal
simultaneously in several points more than a wavelength apart through the entangling interaction of the
incoming photon with the quantum metamaterial sensor array. The interaction produces the spatially
correlated quantum state of the sensor array, characterised by a collective observable (e.g., total magnetic
moment), which is read out using a quantum nondemolition measurement. We show that the effects of local
noise (e.g., fluctuations affecting the elements of the array) are suppressed relative to the signal from the
spatially coherent field of the incoming photon as ~1√N, where N
is the number of array elements. The
realisation of this approach in the microwave range would be especially useful and is within the reach of
current experimental techniques.|
|Description: ||This is a pre print of ZAGOSKIN, A.M. et al, 2013. Spatially resolved single photon detection with a quantum sensor array. Scientific Reports, 3, article 3464. https://dspace.lboro.ac.uk/2134/18229|
|Version: ||Submitted version|
|Publisher Link: ||https://arxiv.org/abs/1211.4182|
|Appears in Collections:||Pre-Prints (Physics)|
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