Fig. 1


Download original image

Scheme of the durations received (each vertical bar represents a photon). tn is the arrival time of the nth photon and dn = tn+1 − tn. We define a random bit from the sign of dn − dm for sufficiently different values of n and m to avoid correlations between arrival times.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.