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University of Colorado President Todd Saliman visited JILA this past week and toured the laboratories at the invitation of JILA and NIST Fellow Eric Cornell. Saliman was impressed by the research team and Fellows and applauded their work. “You are all working to change the world,” President Saliman said.

For JILA and NIST Fellows Ana Maria Rey and Jun Ye, one type of phenomena they are especially interested in observing are the interactions between light and atoms, especially those at the heart of the decay of an atom prepared in the excited state. Ye’s and Rey’s groups collaborated in a joint study, and were able to find an appropriate experimental setting where they were able to observe Pauli blocking of spontaneous emission by direct measurements of the excited state population.

Understanding ways to alter or even engineer spontaneous emission has been an intriguing topic in science. JILA Fellows Ana Maria Rey and James Thompson study ways to control light emission by placing atoms in an optical cavity, a resonator made of two mirrors between which light can bounce back and forth many times. Together, with JILA postdoc and first author Asier Piñeiro Orioli, they have predicted that when an array of multi-level atoms is placed in the cavity the atoms can all cooperate and collectively suppress their emission of light into the cavity.

Worldwide, many researchers are interested in controlling atomic and molecular interactions. This includes JILA and NIST fellows Jun Ye and Ana Maria Rey, both of whom have spent years researching interacting potassium-rubidium (KRb) molecules, which were originally created in a collaboration between Ye and the late Deborah Jin. In the newest collaboration between the experimental (Ye) and theory (Rey) groups, the researchers have developed a new way to control two-dimensional gaseous layers of molecules, publishing their exciting new results in the journal Science.

JILA Fellow Heather Lewandowski has been honored in the 2022  President’s Teaching Scholars Program (PTSP), which recognizes CU faculty who skillfully integrate teaching and research at an exceptional level. Lewandowski's laboratory focuses on both cold molecular physics and physics education research. Her physics education research program studies ways to increase students' proficiency in scientific practices such as using models and quantitative reasoning in experimental physics.

JILA and NIST Fellow Ana Maria Rey is to be inducted into the Colombian Academy of Exact, Physical and Natural Sciences (Academia Colombiana de Ciencias Exactas, Fisicas y Naturales). Fellow Ana Maria Rey has been inducted into the Colombian National Academy of Sciences.  Rey, is a Colombian-American physicist at the University of Colorado, Boulder who "studies the scientific interface between atomic, molecular and optical physics, condensed matter physics and quantum information science."

This week has been a big week for Colorado's quantum community, as delegates from the Government of Finland visited the snowy state to celebrate the beginning of several quantum research and quantum technology partnerships between the Fins and both academia and industry-based groups in Colorado.

JILA physicists have measured Albert Einstein’s theory of general relativity, or more specifically, the effect called time dilation, at the smallest scale ever, showing that two tiny atomic clocks, separated by just a millimeter or the width of a sharp pencil tip, tick at different rates. The experiments, described in the Feb. 17 issue of Nature, suggest how to make atomic clocks 50 times more precise than today’s best designs and offer a route to perhaps revealing how relativity and gravity interact with quantum mechanics, a major quandary in physics.

U.S. Rep. Joe Neguse got a first-hand look at the future of ultrafast lasers, record-setting clocks, and quantum computers on the ���Ҵ�ý�ƽ������ campus. Neguse visited the university Thursday to tour facilities at JILA, a research partnership between ���Ҵ�ý�ƽ������ and the National Institute of Standards and Technology (NIST).

JILA and NIST Fellow Jun Ye has been awarded the 2022 Herbert-Walther-Award from the German Physical Society and OPTICA (formerly OSA). This award recognizes distinguished contributions in quantum optics and atomic physics as well as leadership in the international scientific community.