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On Sat, 21 Sep 2024 23:55:13 +0000, Lawrence D'Oliveiro wrote:Targeting a single particle without casting any effect on any other particle? Can that be done?
On Sat, 21 Sep 2024 13:43:55 -0700, Chris M. Thomasson wrote:Using lasers to slow the particles down !
>On 9/21/2024 1:22 AM, Lawrence D'Oliveiro wrote:>
>On Fri, 20 Sep 2024 15:33:23 -0700, Chris M. Thomasson wrote:>
>Is there any activity going on at absolute zero?>
No, because the Third Law of Thermodynamics says you can’t get there
anyway.
How close can one get?
Arbitrarily close. I heard of experiments already being done in the
microkelvin range.
>
Correction: just checked, and the Guinness World Record site reports a
figure of 38pK.
When a particle is vibrating towards the laser, a picosecond blast
of energy slows it back down. Using heat to achieve cold.
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