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.
Paper Published! Wright et. al Phys. Rev. A 88, 063633 (2013)
Kevin's paper: Threshold for creating excitations in a stirred superfluid ring, has been published in Phys. Rev. A. The paper can be found here.
Paper Published! Murray et. al Phys. Rev. A 88, 053615 (2013)
Noel Murray and Mark Edwards theory paper: Probing the circulation of ring-shaped Bose-Einstein condensates, has been published in Phys. Rev. A. The paper can be found here.
Postdoc Joe Pechkis starts faculty position at Bryn Mawr College
Joe Pechkis who has spent the last year years working on the Strontium experiment has joined the Physics Department at Bryn Mawr College in Bryn Mawr, PA as a Visiting Assistant Professor. Congratulations Joe!
JQI at DAMOP 2013
The meeting of the American Physical Society’s Division of Atomic, Molecular, and Optical Physics (DAMOP) will take place in Quebec June 3-7, 2013. The following is a summary of the presentations being made by scientists of the Joint Quantum Institute (*).
JQI Podcast Episode 8 - Waves Matter for Studying Matter
Phil Schewe discusses how matter, such as atoms and electrons, can display wave-like properties. Steve Rolston describes early scattering experiments. Gretchen Campbell talks about matter waves in the context of modern Bose-Einstein condensate experiments.
JQI Papers at March APS
Roughly 40 papers are being given by speakers from the Joint Quantum Institute (*). Here are summaries of a few of them.
Theory of Positronium BEC’s (future Gamma Laser)
Yi-Hsieh Wang, paper J40.9
Phase Slips paper highlighted by Physics World
An article about our recent PRL has been published in Physics World.
Paper Published! Wright et. al Phys. Rev. Lett. 110, 025302 (2013)
The First Controllable Atom SQUID
PFC supported scientists at JQI have created the first controllable atomic circuit that functions analogously to a superconducting quantum interference device (SQUID) and allows operators to select a particular quantum state of the system at will.
By manipulating atoms in a superfluid ring thinner than a human hair the investigators were able for the first time to measure rotation-induced discrete quantized changes in the atoms’ state, thereby providing a proof-of-principle design for an “atomtronic” inertial sensor.
Paper Published! Ramanathan et. al Rev. Sci Instrum 83, 083119 (2012)
Anand's paper: Partial-transfer absorption imaging: A versatilve technique for optimal imaging of ultracold gases has been published in Review of Scientific Instruments.
The paper can be found here:
http://rsi.aip.org/resource/1/rsinak/v83/i8/p083119_s1?bypassSSO=1