Quantum Illumination with Non-Gaussian Three Photons States

TL;DR

This paper demonstrates that using non-Gaussian three-photon states in quantum illumination can significantly improve detection sensitivity in noisy environments compared to traditional Gaussian states.

Contribution

It introduces a novel non-Gaussian three-photon state approach for quantum illumination, showing enhanced sensitivity over Gaussian methods in high-noise conditions.

Findings

Outperforms Gaussian quantum illumination in noisy backgrounds

Reduces error probability exponentially with photon number

Provides a new pathway for quantum sensing in practical scenarios

Abstract

It is shown that quantum illumination with three photons non-Gaussian states, where the signal is described by a two photons state and the idler is described by a one photon state, can outperform in sensitivity standard Gaussian quantum illumination in a high noisy background. In particular, there is a reduction in the probability due to an increase in the probability of error exponent by a factor $1/{N_S}$, where $N_S$ is the average number of photons per mode of the signal state.