Wireless Microwave Quantum Communication
- URL: http://arxiv.org/abs/2401.08708v1
- Date: Mon, 15 Jan 2024 11:40:44 GMT
- Title: Wireless Microwave Quantum Communication
- Authors: Tasio Gonzalez-Raya
- Abstract summary: We study the limits in the application of quantum microwaves for quantum communication and quantum sensing.
We take advantage of Gaussian quantum states for quantum teleportation and quantum illumination.
We conclude by studying the teleportation of quantum information in a quantum local area.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: This Thesis explores the limits in the application of propagating quantum
microwaves for quantum communication and quantum sensing, as well as the design
of new devices and protocols to fight these limitations. We take advantage of
Gaussian quantum states for quantum teleportation and quantum illumination, and
studies how these protocols can be improved using entanglement distillation and
partial purification, respectively. The Thesis is centered around open-air
entanglement distribution, and it follows the steps of state generation inside
the cryostat, impedance matching between the cryostat and the open air with a
new generation of coplanar antennae, and open air propagation, in the limited
framework of current microwave technology. We also address the limitations
produced by losses and measurement inefficiencies, and explore the extension to
satellite quantum communications. There, we analyze the effects of diffraction
and turbulence, studying how the latter affects signals in the optical regime
as well. We conclude by studying the teleportation of quantum information in a
quantum local area network. To sum up, this Thesis contributes to the
development of wireless quantum communications in the microwave regime,
studying its technological limitations and how to overcome them. Nevertheless,
quantum technologies working in this frequency range are still emergent and
plenty of work must be accomplished in order to make them competitive.
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