• HOME
  • NEWS
    • BIOENGINEERING
    • SCIENCE NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • FORUM
    • INSTAGRAM
    • TWITTER
  • CONTACT US
Monday, March 8, 2021
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
    • BIOENGINEERING
    • SCIENCE NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • FORUM
    • INSTAGRAM
    • TWITTER
  • CONTACT US
  • HOME
  • NEWS
    • BIOENGINEERING
    • SCIENCE NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • FORUM
    • INSTAGRAM
    • TWITTER
  • CONTACT US
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News Chemistry

How complex oscillations in a quantum system simplify with time

Bioengineer by Bioengineer
January 25, 2021
in Chemistry
0
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram

IMAGE

Credit: S. Sotiriadis / Freie Universität Berlin

Quantum physics allows to make statements about the behaviour of a wide variety of many-particle systems at the atomic level, from salt crystals to neutron stars. In quantum systems, many parameters do not have concrete values, but are distributed over various values with certain probabilities. Often this distribution takes the form of a simple Gaussian bell curve that is encountered also in classical systems for example the distribution of balls in the Galton box experiment. However, not all quantum systems follow this simple behavior and some might deviate from the Gaussian distribution due to interactions.

Prof. Dr. Jens Eisert, who heads a joint research group on theoretical physics at the Freie Universität Berlin and the Helmholtz-Zentrum Berlin, argues that once interactions are reduced such deviations decay over time and become Gaussian distributed. Now he has been able to substantiate this presumption experimentally.

To do this, the Berlin team worked together with a group of experimental physicists led by Prof. Dr. Jörg Schmiedmayer at the Vienna University of Technology. Schmiedmayer and members of his group, in particular Dr. Thomas Schweigler, prepared a so-called Bose-Einstein condensate: this is a quantum system consisting of several thousand rubidium atoms, which were confined in a quasi-one-dimensional configuration with the help of magnetic fields and cooled near absolute zero (50 nanokelvin).

“The Vienna group created a synthetic quantum system in which the distribution of the phonons can be observed particularly sharply” explains Dr. Marek Gluza, coauthor of the study and postdoc with Jens Eisert. The measurement data initially represent the complex dynamics of the phonons. But the complexity is lost over time and the distribution takes on the shape of a Gaussian bell curve.

“In fact, we can see here how a Gaussian distribution emerges over time. Nature finds a simple solution, all by itself, through its physical laws” comments Jens Eisert.

What is unique about the performed experiment is that as time goes on the system swings back to the more complex distribution, demonstrating that the signatures of a complicated state can be retrieved again. “We know precisely why it swings back and what it depends on”, Gluza explains. “This shows us something about the isolation of the system because the information about the signatures has never left the system “.

###

Media Contact
Antonia Roetger
[email protected]

Original Source

https://www.helmholtz-berlin.de/pubbin/news_seite?nid=22482;sprache=en;seitenid=1

Related Journal Article

http://dx.doi.org/10.1038/s41567-020-01139-2

Tags: Chemistry/Physics/Materials Sciences
Share12Tweet8Share2ShareShareShare2

Related Posts

IMAGE

Study shows cactus pear as drought-tolerant crop for sustainable fuel and food

March 5, 2021
IMAGE

Christopher Tunnell wins NSF CAREER Award

March 5, 2021

Tantalizing signs of phase-change ‘turbulence’ in RHIC collisions

March 5, 2021

Species are our livelihoods

March 5, 2021

Leave a Reply Cancel reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

POPULAR NEWS

  • IMAGE

    Terahertz accelerates beyond 5G towards 6G

    694 shares
    Share 278 Tweet 174
  • People living with HIV face premature heart disease and barriers to care

    86 shares
    Share 34 Tweet 22
  • Global analysis suggests COVID-19 is seasonal

    39 shares
    Share 16 Tweet 10
  • HIV: an innovative therapeutic breakthrough to optimize the immune system

    36 shares
    Share 14 Tweet 9

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Tags

BiologyEcology/EnvironmentMaterialsMedicine/HealthClimate ChangePublic HealthCell BiologyInfectious/Emerging DiseasescancerGeneticsTechnology/Engineering/Computer ScienceChemistry/Physics/Materials Sciences

Recent Posts

  • Helping people understand glaucoma with a mobile app
  • Virtual avatar coaching with community context for adult-child dyads
  • New Lancet series shows mixed progress on maternal and child undernutrition in last decade
  • “Magic sand” might help us understand the physics of granular matter
  • Contact Us

© 2019 Bioengineer.org - Biotechnology news by Science Magazine - Scienmag.

No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

© 2019 Bioengineer.org - Biotechnology news by Science Magazine - Scienmag.

Welcome Back!

Login to your account below

Forgotten Password?

Create New Account!

Fill the forms below to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In