Efficiency of photonic state tomography affected by fiber attenuation
- URL: http://arxiv.org/abs/2202.08802v3
- Date: Tue, 7 Jun 2022 17:50:31 GMT
- Title: Efficiency of photonic state tomography affected by fiber attenuation
- Authors: Artur Czerwinski and Jakub Szlachetka
- Abstract summary: We study the efficiency of photonic state tomography in the presence of fiber attenuation.
In particular, we focus on entangled qubits and qutrits, which are sent through fibers of different lengths.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: In this article, we investigate the efficiency of photonic state tomography
in the presence of fiber attenuation. The theoretical formalism of the photon
loss is provided by implementing methods from the theory of open quantum
systems. The quantum state is reconstructed from photon counts obtained for
symmetric informationally complete POVMs. The number of photons that reach the
detectors is numerically modeled by the binomial distribution, which describes
the loss of light caused by the medium. This approach allows us to study the
quality of state tomography versus the length of the fiber. In particular, we
focus on entangled qubits and qutrits, which are sent through fibers of
different lengths. The amount of entanglement detected by the measurement
scheme is quantified and presented on graphs. The results demonstrate how the
quality of photonic tomography depends on the distance between the source and
the receiver.
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