David Kirkpatrick

April 18, 2010

Carbon nanotubes and new states of matter

Now this is some fascinating research on carbon nanotube properties.

From the link:

“For the first time, fields of study relating both to cold atoms and to the nanoscale have intersected,” Lene Vestergaard Hau tells PhysOrg.com. “Even though both have been active areas of research, cold atoms have not been brought together with nanoscale structures at the single nanometer level. This is a totally new system.”

Hau is the Mallinckrodt Professor of Physics and Applied Physics at Harvard University. Along with colleague J.A. Golovchenko, and graduate students Anne Goodsell and Trygve Ristroph, who are in her lab at Harvard, Hau was able to set up an experiment that allows for the observation of capture and field ionization of cold atoms. Their work can be found in : “Field  of Cold Atoms near the Wall of a Single Carbon Nanotube.”

And:

“When the electron is pulled in, it goes through a tunneling process,” Hau explains. “It has to go through areas that are classically forbidden. The process is quantum mechanical. We can observe the interaction of the atom and the nanotube as the electron is trying to tunnel, and this offers us a chance to peek at some of the interesting dynamics that happen at the nanoscale.”

Another possibility is that this combination of cold atoms with  could lead to new states of matter. “Since we now know how to suck atoms into orbit at such high spin rates, it could lead to a new state of cold-atomic matter that could be super interesting to study,” Hau points out.

Practical applications?:

Practically, this new system has potential as well. “We could make very sensitive detectors,” Hau says. “Things like ‘atom sniffers’ that detect trace gases could be an application for this work. Additionally, the possibility of single nanometer precision means super high spatial resolution. This system could be used in interferometers — interferometers built on a single chip and based on , which would be of importance for navigation, for example.”

For the raw material, here’s the release the linked article sprung from.

2 Comments »

  1. Hello, i think that i saw you visited my blog so i came to
    “return the favor”.I am attempting to find things
    to enhance my web site!I suppose its ok to use a few of your ideas!
    !

    Comment by Retail Technology — November 17, 2012 @ 9:00 am

  2. Even though european union history timeline something may seem obvious to you but it is a giant help.
    There are several ohline resources that allow download of sample business plans
    you find out probable weaknesses and shortcomings of your business ideas.
    Give information oon employment requirements including CVs for superior
    management in the Appendices and, if applicable, aan organisation chat to illustrate the management
    configuration. These techniques ensure that the requirements of clients on time.

    Comment by kredyty technologiczne — June 30, 2014 @ 11:13 pm


RSS feed for comments on this post. TrackBack URI

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Blog at WordPress.com.

%d bloggers like this: