The huge discrepancies between actual devices and theoretical assumptions severely threaten the security of quantum key ***,a general new framework called the reference technique has attracted wide attention in defend...
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The huge discrepancies between actual devices and theoretical assumptions severely threaten the security of quantum key ***,a general new framework called the reference technique has attracted wide attention in defending against the imperfect sources of quantum key ***,the state preparation flaws,the side channels of mode dependencies,the Trojan horse attacks,and the pulse classical correlations are studied by using the reference technique on the phase-matching *** simulation results highlight the importance of the actual secure parameters choice for transmitters,which is necessary to achieve secure *** the single actual secure parameter will reduce the secure key ***,as long as the parameters are set properly,the secure key rate is still *** the influences of multiple actual secure parameters will significantly reduce the secure key *** actual secure parameters must be considered when scientists calibrate *** work is an important step towards the practical and secure implementation of phase-matching *** the future,it is essential to study the main parameters,find out their maximum and general values,classify the multiple parameters as the same parameter,and give countermeasures.
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