See below for a list of recent noteworthy activities of JQC members.
An international collaboration led by Dr. Christoph Weiss, Durham University, UK, currently investigates the influence of temperature on one-dimensional (1D) attractive gases. Trains or narrow rivers are examples of effectively one-dimensional motion in our three-dimensional world. In winter rivers are less likely to freeze than, say, lakes. Scientists had expected that this also is true for quantum systems. Surprisingly, attractively interacting Bose gases in a very elongated, thus effectively one-dimensional "tube", display a low-temperature behaviour similar to water turning into ice.
Nick Parker writes an invited Viewpoints commentary for the American Physics Society on the first experiment to observe the famous von Karman vortex street in a superfluid. Read the article at physics.aps.org/articles/v9/143.
When we go the coast, the fascinating thing about waves is that they change all the time in shape and size while they approach the beach. However, in a canal, you can also find a different type of wave, bright solitons - waves that do not change their shape. In very cold gases, quantum versions of these waves can be realised experimentally. In a publication by a team lead by Dr. Christoph Weiss from Durham University in the North-East of England, Dr. Bettina Gertjerenken used computers to show how these quantum waves can measure tiny forces.
The group of Kevin Weatherill demonstrate terahertz imaging in work featured recently in Nature Photonics
Writing for The Conversation, Dr Clive Emary discusses how quantum physicists have borrowed an idea from an unlikely source – the early days of the steam engine.
An image from "Measuring the disorder of vortex lattices in a Bose-Einstein condensate" [Phys Rev A 93 013607 (2016)] selected for the Physical Review A January Kaleidoscope.
Applications are being invited from UK/international established academics and postdoctoral researchers, for a fully-funded 2-month visit to the JQC (Newcastle).