Ultracold Physics

[Scott Bernard]

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Ok ts! thanks! I remember man gud way back in college, nga at 0 kelvin, all the atoms movement ceases to move. So this could introduce us to superconductors right? As I remember, the less heat a conductor has, the greater is its conductivity.

Aside from this, unsa kaha ang mga possible practical applications ani? Whether in our households, or perhaps sa undustries?

Compared sa conventional refrigeration or cryogenic methods, that uses refrigerants, taas ba ni ug efficiency ang ultracold technology, in terms of power input and heat rejected?

[fritzd]

Ok ts! thanks! I remember man gud way back in college, nga at 0 kelvin, all the atoms movement ceases to move. So this could introduce us to superconductors right? As I remember, the less heat a conductor has, the greater is its conductivity.

Yes, you are correct. You can imagine electrons moving without any scattering. When atoms are hot, they scatter electrons so obviously if atoms in the superconductor go below a critical temperature, the electrons don't scatter with the atoms anymore thus reducing electrical resistance significantly.

Aside from this, unsa kaha ang mga possible practical applications ani? Whether in our households, or perhaps sa undustries?

If you are talking about this field I am working on, then there aren't no direct industrial applications. But there are indirect industrial applications which I will elaborate more later. Anyway, for now, this research on ultracold atomic physics is highly fundamental. It's as fundamental as particle physics.

If you read about this field through the links or watch the videos I posted, you'll know about the peculiar property of matter if you cool it down to a low temperature in the order of microKelvin. Matter or the atoms with your gas doesn't become a liquid nor solid. It just forms an ensemble of waves. If you cool it down further in the order of nanoKelvin, then these waves from the atoms get bigger and start constructively interfering with each. As a result, your atoms are gone but you have one big super-atom or one big quantum system (This is known as the BOSE-EINSTEIN CONDENSATE). Basically you just have a wavepacket. At this point matter just behaves like waves and you can do so many things that you never thought would be possible. You can treat matter as if it were sound waves or light waves. You can simulate also other difficult quantum systems like solid state physics, our universe, and even form artificial systems. I can refer you to many easy to understand articles about this if you want. One of the main long term applications under strong research in this topic is Quantum Information/Computing/Communication. My research is also going in this direction. Bose-Einstein Condensates are good potential candidates or tools quantum computation.

Now, as you may have noticed, this field is quite fundamental. However, there is an indirect application to the industry. Ultracold atoms experiments demand for extremely sophisticated optical elements and as well as electronic systems for control. So with all these demands, universities do a lot of research and engineering to produce these devices and equipment. Consequently spin-off companies are formed from these universities. Eventually, the devices that these companies find their way to industrial applications. Allow me to give one example. Toptica: Home This company started producing highly advanced laser systems for research applications. Eventually their products found industrial applications due to its precision and accuracy.

Compared sa conventional refrigeration or cryogenic methods, that uses refrigerants, taas ba ni ug efficiency ang ultracold technology, in terms of power input and heat rejected?

Cryogenic methods of cooling is also quite different. There are many cryogenic systems that can go down to microKelvin but never a Bose-Einstein Condensate only laser cooling can do that. Cryogenic systems have extremely high cooling power so they can really out-do laser cooling with it comes to cooling a lot of material. But wait, that is not what laser cooling is for. The purpose is to study and discover new physics. I hope you won't get confused. Cryogenic systems and laser cooling are two different technologies with their own particular ups and downs.

[Scott Bernard]

Ah ok, ako nang na connect gamay sir! So in nanoK or picoK, mao na nga ang atoms mo condense ug into one big superatom, then mahimo na siya ug energy waves, supporting the formula of einstein Energy is directly proportional to Matter and Speed of light..

Ang target sa study is on the Bose-Einstein condensate, not in reaching almost zero K. Nice ts! ... I hope daghan paka ma discover ug new things..gud luck!