A vacuum-signal detection framework stabilizes non-vacuum signal ratio in lossy channels, suppressing QBER to enable in-principle arbitrarily long repeaterless quantum communication.
For instance, if the gate efficiency is r and N auxiliaries are used, then the expectation of n approximates rN
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Vacuum-Signal Detection and the Principle-Level Feasibility of Arbitrarily Long-Distance Repeaterless Quantum Communication
A vacuum-signal detection framework stabilizes non-vacuum signal ratio in lossy channels, suppressing QBER to enable in-principle arbitrarily long repeaterless quantum communication.