Physicists Observe Quantum Behavior in Liquid Vibrations

Physicists Observed Quantum Behavior in a Liquid

The space between two optical fibers (yellow) is filled wth liquid helium (blue). Laser light (red) is trapped in this space, and interacts with sound waves in the liquid (blue ripples). (Image credit: Harris Lab)

For the first time, Yale physicists have directly observed quantum behavior in the vibrations of a liquid body.

A great deal of ongoing research is currently devoted to discovering and exploiting quantum effects in the motion of macroscopic objects made of solids and gases. This new experiment opens a potentially rich area of further study into the way quantum principles work on liquid bodies.

The findings come from the Yale lab of physics and applied physics professor Jack Harris, along with colleagues at the Kastler Brossel Laboratory in France. A study about the research appears in the journal Physical Review Letters.

“We filled a specially designed cavity with superfluid liquid helium,” Harris explained. “Then we use laser light to monitor an individual sound wave in the liquid helium. The volume of helium in which this sound wave lives is fairly large for a macroscopic object — equal to a cube whose sides are one-thousandth of an inch.”

Harris and his team discovered they could detect the sound wave’s quantum properties: its zero-point motion, which is the quantum motion that exists even when the temperature is lowered to absolute zero; and its quantum “back-action,” which is the effect of a detector on the measurement itself.

The co-first authors of the study are Yale postdoctoral fellows Alexey Shkarin and Anya Kashkanova. Additional authors are Charles Brown of Yale and Jakob Reichel, Sébastien Garcia, and Konstantin Ott of the Kastler Brossel Laboratory.

Publication: A. B. Shkarin, et al., “Quantum Optomechanics in a Liquid,” Phys. Rev. Lett., 2019; doi:10.1103/PhysRevLett.122.153601

9 Comments on "Physicists Observe Quantum Behavior in Liquid Vibrations"

  1. Miles Mathis says it is light, i.e. photons 19x the mass of the atomic field. Real not virtual photons.

  2. I have read through other blogs, but they are cumbersome and more confusing than your post. I hope you continue to have such quality posts to share with everyone! I believe a lot of people will be surprised to read this article!

  3. Thanks to this article I can find out more. Expand my knowledge and abilities. Actually the article is very practical.

  4. A really informative web-site. The way you might have share this details is basically really appreciative. Hope to discover far more on this
    topic listed here. Many thanks for your efforts

  5. The three things you can do to fix the car nausea you share are very good and effective. Thanks for sharing.

  6. thanks for sharing this article.I believe a lot of people will be surprised to read this article!

  7. Quantum behavior has many complexities. I hope scientists succeed thanks

  8. For traveling to a very popular destination like Mashhad, before everything you should think of an accommodation. Fortunately, because the number and variety of the hotels in Mashhad is great and numerous, you just need to spend some time and be patient. Visit Jainjas and go to the page of Mashhad hotels reservation for reserving your intended hotel or hotel apartment in Mashhad. You’d better use the filters on the right side of page for fast reservation. In this case, you have considered your priorities as well as not wasting your time. We have provided you information and facilities for staying in a luxury hotel like Darvishi Hotel and reserving hotel apartments of this city in Jainjas. Don’t forget that in the page of each hotel, the comments of users are the important sections that you should read more carefully.
    https://jainjas.com/mashhad

  9. kharid tour kish ba behtarin gheimat az arshinparvaz

Leave a comment

Email address is optional. If provided, your email will not be published or shared.