deletions | additions       diff --git a/To_reach_the_SQ_limit__.md b/To_reach_the_SQ_limit__.md  index baba75a..2b01b40 100644  --- a/To_reach_the_SQ_limit__.md  +++ b/To_reach_the_SQ_limit__.md 
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To reach the SQ limit, electrical nad and  optical properties of the system must meet the ideal conditions assumed by SQ conditions,  these include:   * infinite mobility  * no non-radiative recombination processes