4 ms·
Yes it does. From the paper: "We assume that the complete structure is maintained at cryogenic temperatures (∼1 K or less) inside an electron spin resonance (ES
by vtomole 9y ago
Yes it does. From the paper: "We assume that the
complete structure is maintained at cryogenic temperatures (∼1 K or less) inside an electron spin resonance (ESR) system, which will be used to apply qubit control pulses."
- aerovistae 9y agoDoes that mean at all times (permanently, like whenever the chip is being used) or just during manufacturing?
- jdironman 9y ago'Maintained at / in' usually means continuous or on going.I have not read the paper though, so cannot say for certain.
- marcosdumay 9y agoThat "using mostly standard silicon technology" phrase implies that cryogenic temperatures are not needed during manufacturing, only during operation.
- scentoni 9y agoIt means whenever it is being used. Manufacturing silicon chips involves temperatures from room temperature to ~1300C.
- zackmorris 9y agoNote that this is not as difficult as it sounds. Here is a video explaining how laser cooling works, by using 6 lasers pointing towards a sample with a wavelength just longer than the absorption wavelength of its atoms in order to decrease its momentum regardless of which way it's moving (details near the 2:20 mark): https://www.youtube.com/watch?v=hFkiMWrA2Bc https://www.youtube.com/watch?v=hFkiMWrA2Bc So mainstream cryogenics could be a side benefit of technologies like this. After rereading this, I'm not sure if the ESR itself can perform cooling.
- Symmetry 9y agoPeople who design science fiction settings who want people mining the Moon always talk about how we'll need He3 for advanced fusion in the future. But I swear if quantum computing takes off we'll need to mine the moon for He3 for all the dilution refrigerators we'll want to build. https://en.wikipedia.org/wiki/Dilution_refrigerator https://en.wikipedia.org/wiki/Dilution_refrigerator