Generating Quantum States through Spin Chain Dynamics

Abstract

Spin chains can realise perfect quantum state transfer between the two ends via judicious choice of coupling strengths. In this paper, we study what other states can be created by engineering a spin chain. We conclude that, up to local phases, all single excitation quantum states with support on every site of the chain can be created. We pay particular attention to the generation of W-states that are superposed over every site of the chain.

9 pages, 1 figure

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• Coherent Transport in Photonic Lattices: A Survey of Recent Analytic Results
• Steady many-body entanglements in dissipative systems
• Tailoring Spin Chain Dynamics for Fractional Revivals
• Fermionic quantum carpets: From canals and ridges to solitonlike structures
• Perfect Coding for Dephased Quantum State Transfer
• Parity-dependent state transfer for direct entanglement generation
• Exact generation of quantum states by the dynamics of spin chains
• Co-Processors for Quantum Devices
• Single- to many-body crossover of a quantum carpet