Why room-temperature (ambient pressure) #superconductors, if they exist at all, won't help computers much. What consumes the most energy in traditional CPUs is not energy transfer, but switching transistors at an insane frequency and scale. It is currently unclear whether a CPU can be built from superconductors and scale to similar levels as existing semiconductors do, probably not.
While energy transfer is basically a free operation in the universe (free in terms of energy loss, not time) under certain conditions, such as in interstellar space or in existing cryogenic superconductors, changing physical states back and forth usually costs both time and energy.
Whether superconducting quantum computers can be scaled to significant levels remains to be seen, but I'm skeptical about that too.
As always, extraordinary claims require extraordinary evidence.
Do you think room-temp superconductors are possible at all?
#lk99 #physics #stem #quantum #computers
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npub17j…tnwnd
2023-08-10 22:19:30
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npub17jeft6xuk365aphusnuqxyu6s8ydm6veha9jj4snnuz9gcykrzvs6tnwndPublished at
2023-08-10 22:19:30Event JSON
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"content": "Why room-temperature (ambient pressure) #superconductors, if they exist at all, won't help computers much. What consumes the most energy in traditional CPUs is not energy transfer, but switching transistors at an insane frequency and scale. It is currently unclear whether a CPU can be built from superconductors and scale to similar levels as existing semiconductors do, probably not.\n\nWhile energy transfer is basically a free operation in the universe (free in terms of energy loss, not time) under certain conditions, such as in interstellar space or in existing cryogenic superconductors, changing physical states back and forth usually costs both time and energy.\n\nWhether superconducting quantum computers can be scaled to significant levels remains to be seen, but I'm skeptical about that too.\n\nAs always, extraordinary claims require extraordinary evidence.\n\nDo you think room-temp superconductors are possible at all?\n\n#lk99 #physics #stem #quantum #computers",
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