Russell Anderson returns to his native land
After a very productive two month visit to the RbL lab at JQI, Russell Anderson of Monash University has returned home. Thanks for a great time Russ!
Author: Ian Spielman
Quantum phases of two-component bosons with spin-orbit coupling in optical lattices
Ultracold bosons in optical lattices are one of the few systems where bosonic matter is known to exhibit strong correlations. Here we push the frontier of our understanding of interacting bosons in optical lattices by adding synthetic spin-orbit coupling, and …
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Andkia Putra Ph.D. defends his thesis
On this the 17th of November, 2017, Andika Putra defended his thesis to be elevated to the status of Doctor of Philosophy. Congratulations Dr. Putra!
Strong-coupling phases of the spin-orbit-coupled spin-1 Bose-Hubbard chain: Odd-integer Mott lobes and helical magnetic phases
We study the odd-integer filled Mott phases of a spin-1 Bose-Hubbard chain and determine their fate in the presence of a Raman induced spin-orbit coupling which has been achieved in ultracold atomic gases; this system is described by a quantum …
Kinetic theory of dark solitons with tunable friction
We study controllable friction in a system consisting of a dark soliton in a one-dimensional Bose-Einstein condensate coupled to a noninteracting Fermi gas. The fermions act as impurity atoms, not part of the original condensate, that scatter off of the …
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Lindsay and Ian’s book chapter published: Universal Themes of Bose-Einstein Condensation
The book’s focuses on: Following an explosion of research on Bose–Einstein condensation (BEC) ignited by demonstration of the effect by 2001 Nobel prize winners Cornell, Wieman and Ketterle, this book surveys the field of BEC studies. Written by experts in …
Lindsay and Ian’s book chapter published: Universal Themes of Bose-Einstein Condensation Read more »
Dr. Lauren M. Aycock awarded the APS Congressional Science Fellowship for 2017-2018
Newly minted Ph.D., Dr. Lauren M. Aycock has been award the 2017-2018 APS Congressional Science Fellowship! She will be spending a year working with members of Congress on issues where her experience can support the legislative and political process! Way …
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Fourier transform spectroscopy of a spin–orbit coupled Bose gas
We describe a Fourier transform spectroscopy technique for directly measuring band structures, and apply it to a spin-1 spin–orbit coupled Bose–Einstein condensate. In our technique, we suddenly change the Hamiltonian of the system by adding a spin–orbit coupling interaction and …
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Brownian motion of solitons in a Bose–Einstein condensate
Solitons, spatially localized, mobile excitations resulting from an interplay between nonlinearity and dispersion, are ubiquitous in physical systems from water channels and oceans to optical fibers and Bose–Einstein condensates (BECs). From our pulse throbbing at our wrists to rapidly moving …
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Semisynthetic zigzag optical lattice for ultracold bosons
We propose a cold-atom realization of a zigzag ladder. The two legs of the ladder correspond to a “synthetic” dimension given by two internal (spin) states of the atoms, so that tunneling between them can be realized as a laser-assisted …
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