什么是量子计算机？做一台量子计算机有哪些困难？

array(10) { [0]=> object(stdClass)#4358 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "x1VY8HbGQWM" ["related_video_title"]=> string(83) "超出你的想像，世界上最極端的監獄 | 老高與小茉 Mr & Mrs Gao" ["posted_time"]=> string(19) "1 час назад" ["channelName"]=> string(28) "老高與小茉 Mr & Mrs Gao" } [1]=> object(stdClass)#4331 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "B3NlHL-4CBg" ["related_video_title"]=> string(83) "量子故事会（16）贝尔不等式啥意思？也许你还不了解这个世界" ["posted_time"]=> string(19) "6 лет назад" ["channelName"]=> string(18) "妈咪说MommyTalk" } [2]=> object(stdClass)#4356 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "EGQzhq78myk" ["related_video_title"]=> string(77) "量子故事会（15）薛定谔的猫，一个被你误解了的思想实验" ["posted_time"]=> string(19) "6 лет назад" ["channelName"]=> string(18) "妈咪说MommyTalk" } [3]=> object(stdClass)#4363 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "XuN6sF8UGSw" ["related_video_title"]=> string(120) "一小時略懂量子電腦｜量子位元、量子計算、超導電路、離子阱、拓撲量子位元、量子糾錯" ["posted_time"]=> string(27) "6 месяцев назад" ["channelName"]=> string(16) "PanSci 泛科學" } [4]=> object(stdClass)#4342 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "qWu16X-NpL8" ["related_video_title"]=> string(142) "所有電腦將被終結？量子電腦足以模擬整個宇宙！？量子電腦是噱頭還是真有本事？｜量子熊 ✕ 泛科學 EP10" ["posted_time"]=> string(19) "1 год назад" ["channelName"]=> string(16) "PanSci 泛科學" } [5]=> object(stdClass)#4360 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "4hBpLHqBSOg" ["related_video_title"]=> string(53) "一口气了解12万亿化债和中国的财政体系" ["posted_time"]=> string(27) "5 месяцев назад" ["channelName"]=> string(9) "小Lin说" } [6]=> object(stdClass)#4355 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "g_fSistU3MQ" ["related_video_title"]=> string(87) "比特币和区块链啥原理？矿机挖矿咋回事？李永乐老师讲比特币(1)" ["posted_time"]=> string(19) "6 лет назад" ["channelName"]=> string(15) "李永乐老师" } [7]=> object(stdClass)#4365 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "VAH3hgaZTSU" ["related_video_title"]=> string(62) "过目不忘的天才——冯诺依曼的传奇人生" ["posted_time"]=> string(19) "6 лет назад" ["channelName"]=> string(18) "妈咪说MommyTalk" } [8]=> object(stdClass)#4341 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "iIb9bR73FSQ" ["related_video_title"]=> string(78) "平行宇宙真的存在吗？物理学家眼中的平行宇宙长什么样？" ["posted_time"]=> string(19) "5 лет назад" ["channelName"]=> string(18) "妈咪说MommyTalk" } [9]=> object(stdClass)#4359 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "EcAtRsUcGhQ" ["related_video_title"]=> string(78) "Вояджер - 2 попал в западню — заявляет NASA." ["posted_time"]=> string(21) "1 день назад" ["channelName"]=> string(21) "Злой Космос" } }