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Quantum Networks
Essentially optimal gate teleportation
arXiv
Authors: Lukas Schmitt, David Sutter
Year
2026
Paper ID
76399
Status
Preprint
Abstract Read
~2 min
Abstract Words
76
Citations
N/A
Abstract
Gate teleportation allows us to implement a nonlocal unitary using local operations, classical communication (LOCC), and a shared entangled state. Known deterministic teleportation protocols consume at least one full ebit and achieve optimal entanglement consumption only for Clifford gates. Here, we present a deterministic LOCC protocol for implementing the two-qubit controlled-phase gate U_φ=diag\(1,1,1,ei φ\) with φin [0,π] whose entanglement consumption is close to optimal for every φ. In particular, vanishing rotation angles require vanishing entanglement.
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- This paper contributes to the Quantum Networks research area in the Quantum Articles archive.
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- Gate teleportation allows us to implement a nonlocal unitary using local operations, classical communication (LOCC), and a shared entangled state.
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