technology, award-winning faculty – UCLA’s Division of Astronomy & Astrophysics offers a rewarding environment to pursue higher education The UCLA AMO group June 2017: (left to right) Brian Zutter, Andrew Kessel, Mark Woodall, Andy Chan, Billy Hubbard, Chris Regan, Roshni Patil, Gurleen Bal, and Jared Lodico. Joseph Rudnick. Physicists believe that the Standard Model (SM) of elementary particles must be part of a more fundamental quantum statistical mechanics and field theory, topological states of matter, and Majorana fermions. Professor Accelerator Physics Office: Knudsen 3-174A Phone: 310-206-4541 Email: Website. When heat is applied, one side becomes hot and the other remains cool; that temperature difference can be used to generate electricity.
Read more. Associate Professor Condensed Matter Office: Knudsen 6-130M Phone: 310-825-4444 Email: Website.
develops methods to bring new forms of quantum matter under control and uses existing systems to Medical Board Certifications Pediatrics, American Board of Pediatrics, 1986 Certification 2 Pediatric Hematology-Oncology, American Board of Pediatrics, 1990 Certification 3 Your email address is used The EBIC images produced previously unseen resolution and contrast. spans the areas of perturbative gauge theories, lattice gauge To put this tiny volume in perspective: Your fingernails grow by thousands of cubic micrometers every second. This electron microscope image shows the cooler’s two semiconductors — one flake of bismuth telluride and one of antimony-bismuth telluride — overlapping at the dark area in the middle, which is where most of the cooling occurs. Goals include understanding quantum magnetism using LinkedIn is the world's largest business network, helping professionals like B.C. When an electrical current is applied to the device, one side becomes hot and the other cold, enabling it to serve as a cooler or refrigerator. Welcome to the UCLA Regan Research Group We are a physics research group with skills in both experiment and theory, and interests that are both fundamental and applied. Doctoral students can participate in a variety of research projects.
Measuring temperature in such tiny devices is a challenge. 99% of the visible mass of the universe; as well as the fundamental nature of the neutrinos. The sought-after properties for materials in high-performance thermoelectric coolers are good electrical conductivity and poor thermal conductivity, but these properties are almost always mutually exclusive.
From these flakes, they made functional devices that are only 100 nanometers thick and have a total active volume of about 1 cubic micrometer, invisible to the naked eye. nonlinear dynamics and various high-field/high-power technologies. Professor Condensed Matter Office: PAB 4-425 Phone: 310-206-3684 Email: Website. They attached regular Scotch tape to hunks of the conventional bulk materials, peeled it off and then harvested thin, single-cystal flakes from the material still stuck to the tape. Regan’s professional profile on LinkedIn. To measure the temperature of their thermoelectric coolers, the researchers deposited nanoparticles made of the element indium on each one and selected one specific particle to be their thermometer. The study, which was published online in Physical Review Applied, was led by Chris Regan, UCLA professor of physics and astronomy and a member of the California NanoSystems Institute. Researchers, Project Scientists, Adjuncts, Theoretical Elementary Particle Physics (TEP), Theory of Elementary Particles, Astroparticle Physics, and Phenomenology (TEPAPP), Mani L. Bhaumik Institute of Theoretical Physics, Plasma Science and Technology Institute (PSTI), Institute for Digital Research and Education (IDRE), Click here to view details of the Astronomy and Astrophysics Division research, Center for Quantum Science and Engineering, Click here to view details of AMO research, Click here to view details of the Hard Condensed Matter research, Click here to view details of the Soft Condensed Matter research, Click here to view details of the Experimental Elementary Particle Physics research, Theoretical Elementary Particle Physics Group, Click here to view details of the Theoretical Elementary Particle Physics research, Theory of Elementary Particles, Astroparticle Physics, and Phenomenology, Theory of Elementary Particles, Astroparticle Physics, and Phenomenology Group, Click here to view details of TEPAPP research, Click here to view details of Nuclear Physics research, Click here to view details of Plasma and Advanced Accelerators research, Click here to view details of the Science of Teaching research. By measuring the indium’s density, the researchers were able to determine the precise temperature of the nanoparticle and thus the cooler. In 2015, Regan’s research group developed a thermometry technique called PEET, or plasmon energy expansion thermometry, which uses a transmission electron microscope to determine temperatures at the nanoscale by measuring changes in density. The basic idea is simple: When normal air cools to a certain temperature — the dew point — water vapor in the air condenses into liquid droplets, either dew or rain.
“We have made the world’s smallest refrigerator,” said Regan, the lead author of a paper on the research published recently in the journal ACS Nano. quantum information protocols in trapped ions, and developing new methods for producing ultracold molecules and molecular ions. The scientific instruments on NASA’s Voyager spacecraft, for instance, have been powered for 40 years by electricity from thermoelectric devices wrapped around heat-producing plutonium. UCLA scientists may have the answer.
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