Designing a Spin Channel for Perfect Quantum Communication
Abstract
We propose a scheme for using a spin chain with fixed symmetry interaction as a channel for perfect quantum communication. The perfect quantum communication is determined by the eigenvalues that form a special arithmetical progression, the concrete interaction parameter Ji is obtained as a function of integer and perfect transmission time tp. There are infinite choices of Ji for perfect transmission and one can design the channel according to the requirement of tp. This scheme will provide more choices of spin chain for future experiment in quantum communication.
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