Marissa Weichman, a postdoc in the Ye group, has won the 2018 Justin Jankunas Doctoral Dissertation Award in Chemical Physics.
The award recognizes Weichman’s dissertation study of slow photoelectron velocity-map imaging of cryo-cooled anions. This spectroscopy technique can be used to study the detailed vibrational and electronic structure of exotic neutral species, including radicals... read more -->
JILA graduate student Sarah Bromley won the Harry Lustig Award from the American Physical Society Four Corners Meeting.
The Harry Lustig Award was established in 2015 to remember Lustig's academic achievements and strong commitment to support the work of physics students through APS. The award recognizes outstanding graduate-level research by individuals working in one of the four... read more -->
Why are we here? This is an age-old philosophical question. However, physicists like Will Cairncross, Dan Gresh and their advisors Eric Cornell and Jun Ye actually want to figure out out why people like us exist at all. If there had been the same amount of matter and antimatter created in the Big Bang, the future of stars, galaxies, our Solar System, and life would have disappeared in a flash... read more -->
Imagine A Future . . . The International Moon Station team is busy on the Moon’s surface using sensitive detectors of gravity and magnetic and electric fields looking for underground water-rich materials, iron-containing ores, and other raw materials required for building a year-round Moon station. The station’s mission: launching colonists and supplies to Mars for... read more -->
Researchers at JILA and around the world are starting a grand adventure of precisely controlling the internal and external quantum states of ultracold molecules after years of intense experimental and theoretical study. Such control of small molecules, which are the most complex quantum systems that can currently be completely understood from the principles of quantum mechanics, will allow... read more -->
Leah Dodson won the Miller Prize at the 72nd International Symposium on Molecular Spectroscopy, held June 19–23 in Urbana, Illinois. Dodson is an NRC postdoc whose official advisor is Jun Ye, but who primarily works on molecular spectroscopy in the Mathias Weber lab. Her award-winning talk was entitled “Oxalate Formation in Titanium––Carbon Dioxide Anionic Clusters Studied by Infrared... read more -->
Bryce Bjork’s talk entitled “Direct Measurement of OD+CO-> cis-DOCO, trans-DOCO, and D+CO2 Branching Kinetics using Time-Resolved Frequency Comb Spectroscopy” was selected by a panel of judges at the International Symposium on Molecular Spectroscopy as one of three winners of the 2017 Rao Prize. The prize... read more -->
Research associate Shimon Kolkowitz and his colleagues in the Ye group and Rey theory group have developed a powerful new way to experimentally simulate the complex behavior of electrons in solids. In these experiments, the team uses its strontium lattice optical clock not to track time, but to take advantage of the ultracold atoms in the clock mimicking the quantum behavior of electrons in a... read more -->
Deborah Jin, Jun Ye, and their students wrote a review during the summer of 2016 for Nature Physics highlighting the accomplishments and future directions of the relatively new field of ultracold-molecule research. The field was pioneered by the group’s creation of the world’s first gas of ultracold potassium-rubidium (KRb) molecules in 2008.
The molecules were made by first... read more -->
Bryce Bjork, Thinh Bui and colleagues use cavity-enhanced frequency comb spectroscopy to monitor in real time important chemical reaction kinetices of OH + CO. For the first time, they have detected the short-lived elusive intermediate HOCO under ambient conditions.
To read more about this work, see... read more -->
Frequency comb spectroscopy is making it possible to watch chemical reactions unfold in real time
Using frequency comb spectroscopy, the Ye group has directly observed transient intermediate steps in a chemical reaction that plays a key role in combustion,... read more -->
NRC Postdoc Ed Marti received an Outstanding Presentation Award for his presentation of the poster "Spin-Orbit Coupled Fermions in an Optical Clock" at the 2016 Boulder Laboratories Postdoctoral Poster Symposium held on July 20. This recognition was shared with NRC Postdoc Shimon Kolkowitz, who originally submitted the abstract as well as prepared the poster and a two-minute-two-slide... read more -->
The Ye group just solved a major problem for using molecular fingerprinting techniques to identify large, complex molecules: The researchers used an infrared (IR) frequency comb laser to identify four different large or... read more -->
The old JILA molecule factory (built in 2002) produced the world’s first ultracold polar molecules [potassium-rubidium (KRb)] in 2008. The old factory has been used since then for ultracold chemistry investigations and studies of the quantum behavior of ultracold molecules and the atoms that form them. The Jin-Ye group, which runs the molecule factory, is now wrapping up operations in the old... read more -->
The Ye and Rey groups have discovered the strange rules of quantum baseball in which strontium (Sr) atoms are the players, and photons of light are the balls. The balls control the players by not only getting the atoms excited, but also working together. The players coordinate throwing and catching the balls. While this is going on, the balls can change the state of the players! Sometimes the... read more -->
Matthew Radzihovsky, a Boulder High School student who has been doing research in Jun Ye's lab for over a year now, recently presented some of his work at the local science fair, Corden Pharma Regional Science Fair. His presentation was well received. He placed 1st in Physics and was selected to present this work in the Intel International Science and Engineering Fair as a 2016 Finalist in... read more -->
The Rey and Ye groups are in the midst of an extended collaboration on using the Ye group’s strontium (Sr) lattice clock for studies of spin-orbit coupling in pancake-like layers of cold Sr atoms. Spin-orbit coupling means an atom’s motion is correlated with its spin. It occurs in everyday materials when negatively charged electrons move in response to electromagnetic fields inside a crystal.... read more -->
President Obama has selected JILA Fellow Jun Ye of NIST's Quantum Physics Division to receive a 2015 Presidential Rank Award. The award cited Ye's work advancing "the frontier of light-matter interaction and focusing on precision measurement, quantum physics and ultracold matter, optical frequency metrology, and ultrafast science."
The Presidential Rank... read more -->
JILA’s cold molecule collaboration (Jin and Ye Groups, with theory support from the Rey Group) recently made a breakthrough in their efforts to use ultracold polar molecules to study the complex physics of large numbers of interacting quantum particles. By closely packing the molecules into a 3D optical lattice (a sort of “crystal of light”), the team was able to create the first “highly... read more -->
A National Science Foundation Discovery feature highlights the work of the Ye Lab in their dramatic development of laser frequency comb applications that have, according to the article "transformed basic scientific research and led to new technologies in so many different fields--timekeeping, medical research, communications, remote sensing, astronomy, just to name a few."
... read more -->