Perfect state transfer on a spin-chain without state initialization

Abstract

We demonstrate that perfect state transfer can be achieved using an engineered spin chain and clean local end-chain operations, without requiring the initialization of the state of the medium nor fine tuning of control-pulses. This considerably relaxes the prerequisites for obtaining reliable transfer of quantum information across interacting-spin systems. Moreover, it allows us to shed light on the interplay among purity, entanglement and operations on a class of many-body systems potentially useful for quantum information processing tasks.

5 pages, 1 figure, RevTeX4

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Cited by in corpus (4)

• Hamiltonian tomography in an access-limited setting without state initialization
• Exploiting Quench Dynamics in Spin Chains for Distant Entanglement and Quantum Communication
• Perfect function transfer and interference effects in interacting boson lattices
• Quantum Data Bus in Dipolar Coupled Nuclear Spin Qubits