J4 ›› 2015, Vol. 32 ›› Issue (5): 595-599.

• Quantum Optics • Previous Articles     Next Articles

Information transmission in spin chain of one-dimentional linear quantum dot array

LUO Guozhong   

  1. Department of physics Xinzhou Teachers university, Xinzhou 034000, China
  • Received:2014-10-13 Revised:2015-04-03 Published:2015-09-28 Online:2015-09-28

Abstract:

The paper firstly researched the quantum dot array, which is consisting of a uniform and orderly quantum dot based on one-dimensional linear real space lattice of tight-binding model, and then use the evolution operater to make a single qubit in a spin chain of quantum dot array transferring the information.That is to say, it is so that the information of one-qubit is transferred to the terminal state from the multi-particle state of initating terminal of the quantum dot array that the information is transferred to use the evolution operater , on the basis of the final calculation of probability to discuss ,it is completely possible that the information of one-qubit is transferred from the first qubit to the N qubit of the end.

Key words: quantum physics, information transfer, Taylor series of evolution operator, quantum dot array, linear spin chain; one-dimension, one-qubit

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