Tailoring Spin Chain Dynamics for Fractional Revivals

Abstract

The production of quantum states required for use in quantum protocols & technologies is studied by developing the tools to re-engineer a perfect state transfer spin chain so that a separable input excitation is output over multiple sites. We concentrate in particular on cases where the excitation is superposed over a small subset of the qubits on the spin chain, known as fractional revivals, demonstrating that spin chains are capable of producing a far greater range of fractional revivals than previously known, at high speed. We also provide a numerical technique for generating chains that produce arbitrary single-excitation states, such as the W state.

v3: 11 pages, 8 figures. Accepted version

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Cited by in corpus (7)

• Spin chains for two-qubit teleportation
• Coherent Transport in Photonic Lattices: A Survey of Recent Analytic Results
• Perfect Coding for Dephased Quantum State Transfer
• Parity-dependent state transfer for direct entanglement generation
• Co-Processors for Quantum Devices
• Perfect State Transfer in a Spin Chain without Mirror Symmetry
• Noise reducing encoding strategies for spin chains