We derive an analytical description for quantum state preparation using systems of on-off
detectors. Our method will apply the true click statistics of such detector systems. In …

In this paper, we present schemes on implementing the single-photon-added coherent
source in quantum key distributions. We apply this source in either the standard BB84 …

The addition of a photon into the same mode as a coherent state produces a nonclassical
state that has interesting features, including quadrature squeezing and a sub-Poissonian …

We show that a continuous range of nonclassical states of light can be generated using
conditional measurements on the idler mode of an optical parametric amplifier. The output …

The fast and accessible verification of nonclassical resources is an indispensable step
toward a broad utilization of continuous-variable quantum technologies. Here, we use …

We address the non-classicality of hybrid coherent (HC) states, ie states expressed as a
superposition of coherent state and single-photon-added coherent (SPAC) state. In …

Quantum digital signature (QDS) in principle can provide the information-theoretic security
based on the laws of quantum mechanics. The scheme of quantum digital signature that …

In this work, the measurement transition as well as precision measurement advantages of
single-photon-added coherent state after postselected von Neumann measurement are …

Quantum key distribution involving decoy-states is a significant application of quantum
information. By using three-intensity decoy-states of single-photon-added coherent sources …

The interaction of emitters with guided photonic modes can be used to prepare useful states
for quantum information and communication applications. Since the dynamics and emission …