最后A叔吸收了薛定谔后，获得了他的能力。
本人小白可能说得不对：关于薛定谔能力，就是是一个模糊状态，就是既存在也不存在，我的理解是A叔后来是存在的也是不存在的，就是A叔誓死是活都不知道了，也就杀不死了，这就是无敌。
问题：1、但是如果能够确定A叔是活着的不就可以杀死他了吗？
2、还有观测问题A叔不能观测自己吧？因为薛定谔的猫的实验里，人类把盒子打开才能知道那只猫是活的还是死的？既然如此，A叔就是那只猫，也就是说只有他自己才知道自己是活的还是死的，别人是不知道的，如果告诉别人是生还是死？别人可以观测他杀死他吗？别人都不知道他是死是活？

不是介于生与死之间，是介于存在于不存在之间

动画中薛定谔的猫能力有二：
第一，通过第三者观测的话，无法确定它是否存在，所以“别人”不可能杀死它。
第二，可以通过自我观测，控制自己存在于一定的空间中。
并且这两条同时有效。
对于非猫本人来说，我们确实不知道他是死是活，也无法杀死他。
最好以原作中的事实为依据，无须拘泥物理，毕竟不是硬科幻。

根据薛定谔少尉的表现来看，他虽然不能被第三者杀死，但是可以自杀。
所以楼主说的部分是对的，他可以死，但是只能自杀才有效。

其实死不死都不重要啊，关键是A叔现在只有一条命，而且要维持存在就只能有一条命，
这就有问题了，因为
第一，他不能再吸食完整的人命，否则又会消失
第二，一条命没法用死河了，战斗力上限会大打折扣。
第三，他能不能干涉被人还是个问题，因为原来的薛定谔少尉没战斗力。

言下之意是以准尉的力量为主，吸血鬼的部分能力为辅，想想看你给一个本来力量及其速度远远超乎人类甚至达到超音速级别的生物，出现在任何地方且不被发现的能力，就已经足够恐怖了。而且他将陪伴着每一个人类甚至每一个智慧生命体的灵魂，他就在所有人的的意识里，而且理论上可出现在宇宙中任何一个地方，包括活人所无法进入的死亡之国，所以说他的实体处于一个没有生死概念的世界之中，现在大小姐所看见的他不过是实体在有生死概念的世界的投影罢了，言下之意有点跟超脱于生或死概念的‘涅槃’类似了。

而且准尉不是看世界，而是观测整个世界，并且是通过观测自身留在此世，可以说A叔获得了监视一切现实，且出现在他所能监视的一切地区的能力，代价是无法在奴役他人的生命，否则便无法出现在现实中，也就是说按少校的说法在客观存在时便是一位拥有自我的人类，只不过被冠以了吸血鬼与怪物之名，其实在少校看来是否拥有自我是判断是否为人类的唯一依据，而A叔本身的标志便是眼睛，而且他不是不死之王，而是无命王，而准尉的生命是虚数体，言下之意阿卡多名副其实了，而且是客观存在于世界的虚无之物，说他是克苏鲁神话中的旧日支配者也不为过了，然而他确实是科学技术的产物，所以无论本作中的吸血鬼到底是何物，都注定是黑暗科学的门扉....

其实这场战争的结果已经超越了任何一方的预期，唯一确定的是一切的源头都是阿卡多，这一切反而又是一场闹剧，每一个角色都不过是旧时代的亡灵，但又都各得其所走向了归宿，这也便是这部作品的艺术性所在，言下之意是各种偏执狂各得其所的哲学茶番。

A叔的人格分析。【引用自国外】
Oh btw, Alucard loves men, mortal or not, he's fascinated by humanity in the Manga.
But watch up, some humans (and vampires etc) are dogs. Certainly not the Hellsings, Anderson (pre Nail) or the Queen. This doesn't mean he's altruistic, but he cares for what is "HIS".
He hates to lose and is broken inside for his losses. Fortunately, he "redeems" himself in an IC way (eliminating what CAUSED trouble his sucking life) and got his happy ending. How long will that last? Depends how long he and Integra get to live.
Eternity, immortality, what you call it, Alucard derides its existence and laughs to the fools who actually believe it. Everyone wakes up of their "dreams." One day.
Depends which Alucard. Anime Alucard was basically a childish person with a Peter Pan complex obsessed with Young!Integra (according to Gonzo, he turned Seras because she had Y!Integra's eyes. Ohh deeeeep) because she would make perfect playmate. He wanted to fight/hang out around challenges to fight boredom.
Real "deep". Still he was afraid to lose her. He's still way too childish. Peter Pan complex and all.
Now. Manga Alucard (OVA Alucard is less layered, IMO like all OVA versions but eventually I HOPE they get there) is a very hurt soul (still insane and ruthless but WAY more deep) with a self-hatred issue he tries to deny over again (but eventually comes to light). Someone who in life, he wanted nothing but serve God, he sacrificed everything in war for this goal and got killed. In bitterness, Vlad died and Dracula was born. Dracula wanted nothing but to claim Mina, now again, he went to the extreme of war (consumed by this curse in a way to fight endlessly) and ended up losing everything again. This was his "death". Dracula's domains, subjects, etc are DEAD. Ditto about Vlad's.
His life as Alucard began. Look what Arthur Hellsing has to say about Alucard (he told this to Integra and she remembers this while she watches him breaking down in tears, in front of his beloved enemy Anderson):
"Integra. There are many undying monsters in the world. Here's what I wonder when I see them. Do they really desire immorality as their existence? Many of them crave conflict. Gory struggles. It becomes something akin to weeping, longing. Their screams are not born of desire for combat...but a desire for death.
The vampire. Dracula, Nosferatu, No life King, The count. how many years has that man seen? how many thousands, tens of thousands have had their despair devoured by him? But he has nothing now. No castle, No dominion, No subjects, No lover's heart, not even his own. From conflict to conflict. A revenant who walks on and on and on, until anything and everything is gone and completely leveled.
You see, to me, Integra, vampires, those dreadful undying monsters who control the world of night....look like terribly pitiful, pathetic children who might simply break down and cry feebly."
Anyway, Alucard was (according to himself) dreaming and there's an enemy who puts an end to his world and dream. This makes him emotional unstable. He can't help BUT ignite war but he doesn't want to lose what he has, he's troubled but accursed. IMO, Integra's pretty much an embodiment of God-religious goal + Mina-romantic goal (his previous defeats) which makes their relationship v. interesting. When he returns to London in v7 ending, there's a text that compares the past and the present saying there was once a vampire who came to London to claim a woman he desires (not to mention Major, in v4, saying Alucard stayed for her). After leaving the ship, Alucard ignores the battle, his enemies attacking him to walk right to Integra, kneel down and call her Countess.
They keep getting split apart, and well, no point to go into details. Anyway, upon Alucard's apparent defeat, Major says this was a rehearsal of the play of 1898. Integra, like Mina in the flashback (among the enemies of him), is show as witness of the vampire's defeat.
The Manga ends similar to the TV series (except with INTEGRA asking if he had considered sucking her blood and she bitting herself, her RING finger
, and offering it to her Count). We never get to see what happens next. It's up to our imaginations.
The whole evil POV who lives for war is a misconception Major also had. He would have really won if he had killed Integra and managed to destroy Hellsing, instead he let them live and that's what Alucard returns to at last. After 30 years fighting against millions of souls in "Romancia." He's very like Anderson and (in a way) Integra, extreme and ruthless to get their goals.
Contrasting with Pip and Seras compassion in their own battle.
Final note. He finally got what he wanted: his castle (Hellsing Org), servants/subjects (Pip and Seras), domains (England) and loved one (Integra) didn't get destroyed after the war.
Hence Hellsing ends. With his victory as a metaphorical man (no longer a fortress of lives cowardly supporting his own but returning with ONE life) after an existence of failure.
It's deeper than the Gonzo fail. Still Alucard's brutal, but he's like a knight killing his lady's enemies to win her favor as he once killed to get God's favor or killed to get Mina.
One-tracked-goal oriented person.

其实接触了HELLSING之后，感觉哲学层面上好像更加深邃了，但反而也对自身与人性本身更为迷茫了。

总之少校创造出足以颠覆黑森林的恐怖生物兵器【一把枪的射程达到了无限大【而且速度不受距离约束】，就不是枪械了，而是神器】，只是为了同阿卡多一战，足以把哲学提高到了令人发指的高度，所以我觉得HELLSING是独一无二的，不只是热血这么简单。