
In recent years ultracold atomic gases have proven to be a powerful and versatile tool for studying a wide variety of physics.
Our group currently has two experiments, the Sodium atom circuits experiment and the ultracold Strontium experiment. Both experiments are located at the Joint Quantum Institute located on the UMD campus and use ultracold atomic gases to study many-body physics. The atom circuits experiment is currently focused on studying superfluidity and analogs of both superconducting electronics and cosmological physics, whereas the strontium experiment is focused on engineering and studying novel condensed matter systems.
Gretchen Campbell named new JQI Co-Director
JQI Fellow Gretchen Campbell has been named the new NIST Co-Director of the Joint Quantum Institute, effective April 1, 2016. Campbell joined the JQI in 2009 and is also a UMD Adjunct Associate Professor and APS Fellow. In recent years she has received various accolades for her atomtronics research, including the APS Maria Goeppert-Mayer award. Campbell succeeds JQI Fellow Charles Clark, who has held the position since 2011. JQI Fellow Steven Rolston will continue as the UMD Co-Director. Rolston, on behalf of JQI, would like to thank Clark for his service. "I would particularly like to highlight Charles’ leadership and active engagement with the public in the promotion of quantum physics. The JQI will continue to benefit from his dedication." Rolston continues, "Gretchen is an outstanding research colleague and I look forward to working with her in her new role as Co-Director."
Paper Published: Mathew et al. Phys. Rev. A 92, 033602 (2015)
Ranchu's paper " Self-heterodyne detection of the in situ phase of an atomic superconducting quantum interference device" was published in PRA on September 3rd. This paper was a theory/experimental collaboration with the Mark Edwards of Georgia Southern University and the Tiesinga group at the JQI. The paper was selected as an editors suggestion, and can be found here,
Gretchen Campbell receives IUPAP Young Scientist Prize
JQI Fellow and NIST Scientist Gretchen Campbell has recently been announced as the IUPAP 2015 Young Scientist Prize recipient in the field of Atomic, Molecular, and Optical Physics. The organization cited her "outstanding contributions in toroidal Bose-Einstein condensates and its application to "atomtronic" circuits."
The International Union of Pure and Applied Physics (IUPAP) was established in 1922 in Brussels with 13 Member countries and the first General Assembly was held in 1923 in Paris. More about the prize can be found at http://iupap.org/young-scientist-prize/
Gretchen Campbell among finalists for Service to America Medal
Gretchen Campbell, a JQI Fellow and NIST Physicist, has been selected as a 2015 Finalist for a Service to America Medal. The highly respected honor highlights dedicated federal workers who have made significant contributions to our country. According to the award website, "The Sammies, known as the “Oscars” of government service, are a highly respected honor with a vigorous selection process. Named for the Partnership for Public Service’s late founder who was inspired by President Kennedy’s call to serve in 1963, these awards align with his vision of a dynamic and innovative federal workforce that meets the needs of the American people."
Campbell is nominated in the Call to Service category and is cited as having "Advanced the emerging field of physics known as atomtronics, paving the way for a new generation of technologies much like electronics has transformed our society today."
Three JQI Fellows Win APS Awards
Three Fellows of the Joint Quantum Institute (JQI), a joint research partnership between the University of Maryland (UMD) and the National Institute of Standards and Technology (NIST), have won major awards from the American Physical Society, the nation’s largest professional organization of physicists. The scientists are Ian Spielman and Gretchen Campbell of NIST, and Christopher Monroe of UMD, each honored in a different category.
A cold-atom ammeter
In certain exotic situations, a collection of atoms can transition to a superfluid state, flouting the normal rules of liquid behavior. Unlike a normal, viscous fluid, the atoms in a superfluid flow unhindered by friction.
Interferometric measurement of the current-phase relationship of a superfluid weak link publixhed in PRX!
Resistive Flow in a Weakly Interacting Bose-Einstein Condensate published in PRL!
Fred's paper "Resistive Flow in a Weakly Interacting Bose-Einstein Condensate" has been published in Physical Review Letters on July 24th. The paper can be found here.
JQI Fellow Gretchen Campbell among PECASE awardees
Release from NIST Tech Beat, April 15, 2014
Three National Institute of Standards and Technology (NIST) researchers were among those honored April 14, 2014, at a White House reception as winners of Presidential Early Career Awards. The award is the highest honor bestowed by the United States government on science and engineering professionals in the early stages of their independent research careers.
Hysteresis in a quantized superfluid ‘atomtronic’ circuit featured on the cover of Nature
Steve's paper "Hysteresis in a quantized superfluid ‘atomtronic’ circuit" was published in Nature on February 13th. The paper can be found here. A News & Views about the paper writtin by Matt Davis and Kris Helmerson can be found here.
A popular account of the article can be found at the JQI website.