Advantage in two-way communication using non-classical states of light
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Bohnishikha Ghosh and Amit Mukherjee and S. Aravinda
2019
Abstract
Maximal advantage in two-way communication via maximal violation of an
inequality associated with the `Guess Your Neighbour's Input' game has been
theoretically and experimentally established quite recently [Del Santo et al.,
PRL 18, Massa et al., OSA 18] using a single-photon two-mode entangled state.
We argue that such a maximal advantage can be achieved using single-mode
non-classicality, embedded in a two-mode entangled state, called the
generalized NOON state, irrespective of the average photon number of the state,
which in principle can be made to be very small. The same state furnishes
violation of Bell-type inequality without using a shared reference frame. It is
shown that the usage of generalized NOON states can provide an advantage over
the usage of single-photon two-mode entangled state under noisy apparatuses
(beam splitters and photo detectors).
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