Steganographic Entanglement Sharing
Bruno Avritzer, Todd A. Brun

TL;DR
This paper extends classical quantum steganography to quantum information transmission, demonstrating how entanglement sharing can be used for secure nonclassical state teleportation despite active eavesdroppers.
Contribution
It introduces a method for steganographic entanglement sharing in quantum channels, building on prior classical steganography frameworks and applying it to quantum information tasks.
Findings
Demonstrates secure quantum entanglement sharing in the presence of eavesdroppers
Extends classical steganography protocols to quantum information transmission
Shows practical utility in nonclassical state teleportation
Abstract
In a previous work we have discussed a theoretical grounding for classical steganography using quantum Fock and coherent states in an optical channel, building on previous work by Wu et al. In that work, we discussed protocols which disguise communications to mimic the thermal state of a harmonic oscillator. In this work we will extend this to transmission of quantum information, and demonstrate the utility of steganographic entanglement sharing in practical contexts like nonclassical state teleportation, even with the presence of an active eavesdropper.
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