Chinese Journal of Quantum Electronics, Volume. 32, Issue 5, 595(2015)
Information transmission in spin chain of one-dimensional quantum dot array
The quantum dot array consisting of a uniform and orderly quantum dot based on one-dimensional linear real space lattice of tight-binding model was investigated, and the evolution operator was used to transfer a single qubit in a spin chain of quantum dot array. That is to say, the information of one-qubit is transferred to the terminal state from the multi-particle state |110203…0N-10N> of initiating terminal of the quantum dot array |010203…0N-11N> with the evolution operator exp(-iλt?H). The probability was calculated. The results show that it is possible that the information of one-qubit is transferred from the first qubit of initiating terminal of the multi-particle state |110203…0N-10N> to the N qubit of the end of the terminal state |010203…0N-11N>.
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LUO Guozhong. Information transmission in spin chain of one-dimensional quantum dot array[J]. Chinese Journal of Quantum Electronics, 2015, 32(5): 595
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Received: Oct. 13, 2014
Accepted: --
Published Online: Oct. 22, 2015
The Author Email: Guozhong LUO (luoguozhong2013@163.com)