Is Long-Distance Laser Cooling Feasible?

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Discussion Overview

The discussion revolves around the feasibility of laser cooling objects from a significant distance, specifically considering the hypothetical scenario of cooling a planet with orbiting satellites. Participants explore the principles of laser cooling and its limitations in terms of distance and effectiveness.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions whether it is possible to laser cool an object from afar, specifically asking about the threshold distance for effective cooling.
  • Another participant expresses skepticism about the feasibility of long-distance laser cooling, suggesting a lack of understanding of how laser cooling operates.
  • A different participant acknowledges familiarity with laser cooling but notes that it is typically discussed in the context of achieving very low temperatures, such as near absolute zero.
  • There is a reiteration of the initial question regarding the possibility of laser cooling from a distance, along with inquiries about the effectiveness of cooling when in close proximity.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the feasibility of long-distance laser cooling, with some expressing doubt while others seek clarification on the principles involved.

Contextual Notes

The discussion does not address specific assumptions or mathematical principles underlying laser cooling, nor does it explore the practical limitations of the technology in detail.

ASGTech
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Just wondering If it is possible to laser cool an object from afar or from a large distance away? Suppose you wanted to laser cool a planet with satellites in orbit around it, Would that be possible? Doesn't matter If they'd have to be ridiculously huge to have a noticeable effect or would take a very long period of time, Just wondering If it's possible. If not, then what is the threshold distance you can laser cool from if any?
 
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I can't see any way that it could be done at all. Do you know how laser cooling actually works?
 
I do but I've only heard of it in the context of super-cooling, like very near absolute zero.

In that regards it more or less gives very low energy electrons nowhere to move, but only very low energy before it is employed.
 
ASGTech said:
Just wondering If it is possible to laser cool an object from afar or from a large distance away? Suppose you wanted to laser cool a planet with satellites in orbit around it, Would that be possible? Doesn't matter If they'd have to be ridiculously huge to have a noticeable effect or would take a very long period of time, Just wondering If it's possible. If not, then what is the threshold distance you can laser cool from if any?
Can you cool an object with laser if you are close by?
How would you do it?
 

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