Breaking the Speed Limit for Perfect Quantum State Transfer

Weichen Xie, Alastair Kay, Christino Tamon

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We describe a protocol for perfectly transferring a quantum state from one party to another under the dynamics of a fixed, engineered Hamiltonian. Our protocol combines the concepts of fractional revival, dual rail encoding, and a rare glimpse of the anti-Zeno effect. Remarkably, the transfer happens faster than the speed limit for perfect quantum state transfer.
Original languageEnglish
Article number012408
JournalPhysical Review A
Issue number1
Publication statusPublished - 7 Jul 2023

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