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We present a protocol for quantum state transfer and remote state preparationacross spin chains which operate in their anti-ferromagnetic mode. The proposedmechanism harnesses the inherent entanglement of the ground state of thestrongly correlated many-body systems which naturally exists for free. Theuniform Hamiltonian of the system does not need any engineering and, during thewhole process, remains intact while a single qubit measurement followed by asingle-qubit rotation are employed for both encoding and inducing dynamics inthe system. This, in fact, has been inspired by recent progress in observingspin waves in optical lattice experiments, in which manipulation of theHamiltonian is hard and instead local rotations and measurements have becomeviable. The attainable average fidelity stays above the classical threshold forchains up to length $~50$ and the system shows very good robustness againstvarious sources of imperfection.

Measurement induced dynamics for spin chain quantum communication and its application for optical lattices