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¡¡¡¡×÷ÕߵĻظ´£º
¡¡¡¡Regarding the mechanic of QRNG, it is a consensus for the whole
field,that a premise of the Bell test is, that the mechanic of a QRNG
must be nondeterministic. Otherwise, all Bell type experiments will
automatically have locality loophole and are unnecessary to be
implemented.

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¡¡¡¡I agree that there is some logical problem, since in the letter
the authors used a quantum random number generator to choose
measurements for the test - in simple words- they used quantum
mechanics to test quantum mechanics, however I do not see any better
solution to this problem and the authors of the comment also did not
propose one.

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ÀýÈçºóÀ´±»´«ÎªÎÞ©¶´µÄbellʵÑéµÄ2015ÄêÄÇƪÎÄÕ¡¶Loophole-free Bell
inequality violation using electron spins separated by 1.3 kilometres¡·
Ò²²»ÐУ¬µ«ÊÇÄÇƪÎÄÕµÄ×÷Õ߱ȽϴÏÃ÷£¬ÔÚÎÄÕÂÖÐдµÀ¡°Strictly speaking,
no Bell experiment can exclude all conceivable local-realist theories,
because it is fundamentally impossible to prove when and where free
random input bits and output values came into existence¡±Ò²¾ÍÊÇËäÈ»×ö
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¡¡¡¡For the SPCMs in our experiment, we had calibrated its measurement
time (from a photon injection into the detector to an electrical
signal emits) as 30 ns, which had been taken into account when
calculating d.

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