Evaluation of the performance of two state-transfer Hamiltonians in the presence of static disorder

Abstract

We analyse the performance of two quantum-state-transfer Hamiltonians in the presence of diagonal and off-diagonal disorder, and in terms of different measures. The first Hamiltonian pertains to a fully-engineered chain and the second to a chain with modified boundary couplings. The task is to find which Hamiltonian is the most robust to given levels of disorder and irrespective of the input state. In this respect, it is shown that the performance of the two protocols are approximately equivalent.

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References in corpus (6)

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• Electron wavepacket propagation and entanglement in a chain of coupled quantum dots
• Non-Perturbative Entangling Gates between Distant Qubits using Uniform Cold Atom Chains
• From perfect to fractal transmission in spin chains
• Statistics of a quantum-state-transfer Hamiltonian in the presence of disorder
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Cited by in corpus (10)

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• Photon-assisted quantum state transfer and entanglement generation in spin chains
• Arbitrary length XX spin chains boundary-driven by non-Markovian environments
• Robust and efficient transport of two-qubit entanglement via disordered spin chains
• Two-excitation routing via linear quantum channels
• Non-Markovianity in the time evolution of open quantum systems assessed by means of quantum state distance