Breaking the Speed Limit for Perfect Quantum State Transfer
arXiv:2209.08160 · doi:10.1103/PhysRevA.108.012408
Abstract
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 [1, 2].
arXiv comment5 pages, 1 figure
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