How cold does a quantum computer need to be?

Related questions

1. What can a quantum computer solve?
2. Is a quantum computer faster?
3. What problems can quantum computers solve?
4. Does Microsoft have a quantum computer?
5. Can RSA 2048 be broken?
6. How can a qubit be 1 and 0?
7. What is the largest quantum computer?
8. What would a quantum computer do?
9. Is there a quantum computer?
10. What is the biggest quantum computer?

Tags

1. #quantum
2. #degrees
3. #state
4. #stationary
5. #close
6. #possible
7. #requires
8. #particles
9. #extremely
10. #computers
11. #which
12. #cores
13. #computing
14. #atomic
15. #measured
16. #absolute
17. #temperatures
18. #operate