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--- lecture:201225_低温技术简介 [2020/12/25 12:32] – Ce Zhang
+++ lecture:201225_低温技术简介 [2021/06/04 07:31] (current) – [制冷机无液氦化] Ce Zhang
@@ Line 1: / Line 1: @@
 ====== 低温技术简介 ======
 林熙
+https://www.koushare.com/lives/room/590392
+===== 简介 =====
 人类商用 0.1K
@@ Line 47: / Line 52: @@
 He4波色子
+绝热去磁：
+升高温度：有序--》无序。
+等温磁化：逼着有序--》放热--》冷源带走
+然后断开热开关，绝热去磁。
+磁场之比就是温度之比。
+==== 制冷机无液氦化 ====
+干式制冷机
+液氦供应和价钱不好控制。
+--GM（Gifford-MaMahon）
+--脉冲管
+基本上制冷机就是；4K环境，稀释原部件、绝热去磁部件
+=== 应用 ===
+CPU
+量子比特
+量子计算需要低温环境
+{{gallery>:lecture:201225_lowtemp}}
+{{ :lecture:201225_lowtemp:201225_lowtemp1.png?600 |}}
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