Achievable Qubit Rates for Quantum Information Wires

Details Achievable Qubit Rates for Quantum Information Wires Achievable Qubit Rates for Quantum Information Wires

2011-02-11

arxiv.org/abs/1102.2427v2

Physics

Quantum Physics

Scientific paper

Suppose Alice and Bob have access to two separated regions, respectively, of a system of electrons moving in the presence of a regular one-dimensional lattice of binding atoms. We consider the problem of communicating as much quantum information, as measured by the qubit rate, through this quantum information wire as possible. We describe a protocol whereby Alice and Bob can achieve a qubit rate for these systems which is proportional to N^(-1/3) qubits per unit time, where N is the number of lattice sites. Our protocol also functions equally in the presence of interactions modelled via the t-J and Hubbard models.

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