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Prof. Bob Behringer and his graduate student Abe Clark, along with Prof. Lou Kondic of NJIT, recently had a paper accepted in PRL titled "Particle scale dynamics in granular impact." The image at left is a typical image from one of their experiments, where the bright particles are experiencing force.
Read more here.
This summer, Zongjin Qian is staying at CERN, Geneva from June 2 to July 28. Here he is site-seeing around the city.
A paper by a group led by Prof. Joshua Socolar to Physical Review E has been highlighted as an Editor's Suggestion. Entitled "Emergence of limit-periodic order in tiling models," the paper describes the theory of formation of an ordered solid that is not a periodic crystal. Read it here. The lead author on the paper was graduate student Catherine Marcoux, and in addition to Socolar the team included Prof. Patrick Charbonneau and two Duke physics majors, Travis Byington and Zongjin Qian, who wrote honors theses on portions of this work.
One visualization of the limit-periodic phase consists of a lattice of cubic "particles," each with an internal decoration that breaks the cubic symmetry. The particles are all identical, but the pattern of their orientations is nonperiodic. The accompanying figure shows how the decorations join to form helices with different radii, and the theory indicates that at zero temperature there will be helices with radii larger than any specified size.
Click here to read the rest of the article Article on Novel Solid Phase Highlighted as PRE Editor's Suggestion.
This summer, Zongjin Qian is staying at CERN, Geneva from June 2 to July 28. Here he is site-seeing around the city.
This summer, Zongjin Qian is staying at CERN, Geneva from June 2 to July 28. Here he is site-seeing around the city.
Prof. Tornow (left) and the Japanese team during a break on the KamLAND Outer Detector refurbishment work.
Prof. Werner Tornow spent two and a half weeks in Japan to help with the refurbishment of the so-called Outer Detector of the main KamLAND detector located in the Kamioka mine adjacent to the Super-Kamiokande detector. The Outer Detector was built with Prof. Tornow as Principle Investigator in the years 2000 and 2001 by members from the TUNL consortium using funds provided by the United States Department of Energy. The Outer Detector is a water Cherenkov detector employing 225 large (20” diameter) photomultiplier tubes, which were recycled from the old Kamiokande detector. During the past decade more than half of these photomultiplier tubes failed, reducing the efficiency for vetoing cosmic-ray muons to a level unacceptable for another decade of operation. Therefore, the Japanese government provided funds to install 140 new 20” photomultiplier tubes. After discovering neutrino oscillations and detecting anti-neutrinos from the Earth’s crust and interior, the main research thrust of the KamLAND collaboration is now focusing on the search for neutrinoless double-beta decay of 136Xe.
Prof. Tornow Contributed To Refurbishment of Outer Detector at KamLAND
Duke University Physics Department, Science Night 2010
Sep 22 four student volunteers from the Physics Dept’s Outreach Group joined the Chemistry Dept’s Outreach Group for “An Evening of Science” in front of the French Science Building. Using demonstrations, the students explained two topics they learned in mechanics, Newton’s 3rd Law and Waves.
The image here is of a Ruben’s Tube. The pipe has a speaker inserted in one end and the other end plugged. There is a line of small holes drilled along the top and a gas valve on the front – basically a long grill with a speaker in one end. (The Outreach group can cook hot dogs, too!) After turning on the gas and lighting, an amplified function generator sends a sine wave to the speaker at one of the tube’s resonant frequencies. The flame heights will vary according to the sound pressure level at each hole thus the standing wave in flames.
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This summer, Zongjin Qian is staying at CERN, Geneva from June 2 to July 28. Here he is site-seeing around the city.
This summer, Zongjin Qian is staying at CERN, Geneva from June 2 to July 28. Here he is site-seeing around the city.
This summer, Zongjin Qian is staying at CERN, Geneva from June 2 to July 28. Here he is site-seeing around the city.
This summer, Zongjin Qian is staying at CERN, Geneva from June 2 to July 28. Here he is site-seeing around the city.
In July Prof. Shailesh Chandrasekharan and postdoctoral associate Dr. Anyi Li traveled to Squaw Valley, Lake Tahoe to attend 2011 International Symposium on Lattice Field Theory. It is the biggest annual meeting for all the people who are doing lattice field theory calculations. 350 participants from all over the world have attended this year's conference. Prof. Chandrasekharan and Dr. Li presented their work on the novel developed algorithm which can efficiently simulate the fermionic system at chiral limit. It is believed that the conventional approach would fail at that limit. Their approach has been well received by the audiences and raised lots of interesting questions and discussions. The new algorithm has promising applications on the physics of graphene and unitary fermi gas. They have started implementing the calculations on those problems.
Submitted by: Dr. Anyi Li
Chandrasekharan and Li attend Lattice Field Theory Symposium
This summer, Zongjin Qian is staying at CERN, Geneva from June 2 to July 28. Here he is site-seeing around the city.
Duke University Physics Department, Science Night 2010
Sep 22 four student volunteers from the Physics Dept’s Outreach Group joined the Chemistry Dept’s Outreach Group for “An Evening of Science” in front of the French Science Building. Using demonstrations, the students explained two topics they learned in mechanics, Newton’s 3rd Law and Waves.
The image here is of a Ruben’s Tube. The pipe has a speaker inserted in one end and the other end plugged. There is a line of small holes drilled along the top and a gas valve on the front – basically a long grill with a speaker in one end. (The Outreach group can cook hot dogs, too!) After turning on the gas and lighting, an amplified function generator sends a sine wave to the speaker at one of the tube’s resonant frequencies. The flame heights will vary according to the sound pressure level at each hole thus the standing wave in flames.
Duke University Physics Department, Science Night 2010
Sep 22 four student volunteers from the Physics Dept’s Outreach Group joined the Chemistry Dept’s Outreach Group for “An Evening of Science” in front of the French Science Building. Using demonstrations, the students explained two topics they learned in mechanics, Newton’s 3rd Law and Waves.
The image here is of a Ruben’s Tube. The pipe has a speaker inserted in one end and the other end plugged. There is a line of small holes drilled along the top and a gas valve on the front – basically a long grill with a speaker in one end. (The Outreach group can cook hot dogs, too!) After turning on the gas and lighting, an amplified function generator sends a sine wave to the speaker at one of the tube’s resonant frequencies. The flame heights will vary according to the sound pressure level at each hole thus the standing wave in flames.
This summer, Zongjin Qian is staying at CERN, Geneva from June 2 to July 28. Here he is site-seeing around the city.
This summer, Zongjin Qian is staying at CERN, Geneva from June 2 to July 28. Here he is site-seeing around the city.
Joshua Bienfang, BS 1994, made the news this summer when he developed and demonstrated a way to send high speed encrypted messages using quantum physics. Bienfang worked in Dan Gauthier’s lab as an undergraduate and as a research scientist for one year, then went to the University of New Mexico for graduate school. He’s now a physicist at the National Institute for Standards and Technology (NIST). Check out the articles about him in the Washington Post here and here.
Waveguide QED Structure figure figure by grad student Huaixiu Zheng, winner of the John T. Chambers Scholar Award.
In December of 2009 TUNL hosted two boy scout troops for a day. During their visits the boy scouts learned about nuclear physics from the perspective of TUNL physicists on site, toured the facility, and had hands-on experience with their own experiments
Joshua Bienfang, BS 1994, made the news this summer when he developed and demonstrated a way to send high speed encrypted messages using quantum physics. Bienfang worked in Dan Gauthier’s lab as an undergraduate and as a research scientist for one year, then went to the University of New Mexico for graduate school. He’s now a physicist at the National Institute for Standards and Technology (NIST). Check out the articles about him in the Washington Post here and here.
Duke University Physics Department, Science Night 2010
Sep 22 four student volunteers from the Physics Dept’s Outreach Group joined the Chemistry Dept’s Outreach Group for “An Evening of Science” in front of the French Science Building. Using demonstrations, the students explained two topics they learned in mechanics, Newton’s 3rd Law and Waves.
In December of 2009 TUNL hosted two boy scout troops for a day. During their visits the boy scouts learned about nuclear physics from the perspective of TUNL physicists on site, toured the facility, and had hands-on experience with their own experiments
Duke University Physics Department, Science Night 2010
Sep 22 four student volunteers from the Physics Dept’s Outreach Group joined the Chemistry Dept’s Outreach Group for “An Evening of Science” in front of the French Science Building. Using demonstrations, the students explained two topics they learned in mechanics, Newton’s 3rd Law and Waves.
In December of 2009 TUNL hosted two boy scout troops for a day. During their visits the boy scouts learned about nuclear physics from the perspective of TUNL physicists on site, toured the facility, and had hands-on experience with their own experiments