Ian Spielman – Page 7 – Quantum matter from atomic gases

A Rapidly Expanding Bose-Einstein Condensate: An Expanding Universe in the Lab

By Ian Spielman Posted on 2018/04/19 Posted in Group News, Papers Published

We study the dynamics of a supersonically expanding, ring-shaped Bose-Einstein condensate both experimentally and theoretically. The expansion redshifts long-wavelength excitations, as in an expanding universe. After expansion, energy in the radial mode leads to the production of bulk topological excitations—solitons …

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ErNa Photo-op!

By Ian Spielman Posted on 2018/01/19 Posted in Group News, Personnel

Pictured is the ErNa team: from left to right: Hector Sosa Martinez (Postdoc), Ian B. Spielman (collaborator), Gretchen K. Campbell (PI), Avinash Kumar (pre-h. D), Madison Anderson (graduate student), Monica Gutierrez Galan (graduate student), and Swarnav Banik (graduate student).

Synthetic clock transitions via continuous dynamical decoupling

By Ian Spielman Posted on 2018/01/16 Posted in Group News, Papers Published

Decoherence of quantum systems due to uncontrolled fluctuations of the environment presents fundamental obstacles in quantum science. Clock transitions which are insensitive to such fluctuations are used to improve coherence, however, they are not present in all systems or for …

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Russell Anderson returns to his native land

By Ian Spielman Posted on 2017/12/30 Posted in Group News, RbLi

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!

Quantum phases of two-component bosons with spin-orbit coupling in optical lattices

By Ian Spielman Posted on 2017/12/30 Posted in Group News, Papers Published, Theory

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

By Ian Spielman Posted on 2017/11/17 Posted in Group News, RbChip

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

By Ian Spielman Posted on 2017/11/03 Posted in Group News, Theory

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 …

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Kinetic theory of dark solitons with tunable friction

By Ian Spielman Posted on 2017/05/04 Posted in Group News, Theory

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

By Ian Spielman Posted on 2017/05/03 Posted in Group News, Papers Published

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 …

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Dr. Lauren M. Aycock awarded the APS Congressional Science Fellowship for 2017-2018

By Ian Spielman Posted on 2017/03/22 Posted in Group News, Personnel, RbK

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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Author: Ian Spielman