| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a quantum tangle generation system capable of attaining an efficiency close to a theoretical limit in a case where kinds of error is not limited because no limitation is paused on kinds of error. <P>SOLUTION: A transmission device includes a first quantum tangle generation section in which a quantum tangle state is generated between a quantum bit A and optical pulse μ, and the optical pulse μ is transmitted to a reception device. The reception device includes a second quantum tangle generation section for generating a quantum tangle state, a detection light generation section which receives optical pulses ν<SB POS="POST">1</SB>and ν<SB POS="POST">2</SB>and generates optical pulses ν<SB POS="POST">3</SB>and ν<SB POS="POST">4</SB>, a detection section which measures a value dependent on the number of photons of the optical pulses ν<SB POS="POST">3</SB>and ν<SB POS="POST">4</SB>, and a determination section which determines success of sharing of quantum tangle when it is estimated that "there is a difference between the number of photons contained in the optical pulse ν<SB POS="POST">3</SB>and the optical pulse ν<SB POS="POST">4</SB>" based on the value dependent on the number of photons of the optical pulse ν<SB POS="POST">3</SB>and ν<SB POS="POST">4</SB>, and determines failure in sharing of quantum tangle when it is estimated that "there is no difference in the number of photons contained in the optical pulse ν<SB POS="POST">3</SB>and the optical pulse ν<SB POS="POST">4</SB>". <P>COPYRIGHT: (C)2013,JPO&INPIT |
