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Rapidly rotating atomic gases

- N. Cooper
- Physics
- 24 October 2008

In this article, we review developments in the theory of rapidly rotating degenerate atomic gases. The main focus is on the equilibrium properties of a single-component atomic Bose gas, which (at… Expand

THERMOELECTRIC RESPONSE OF AN INTERACTING TWO-DIMENSIONAL ELECTRON GAS IN A QUANTIZING MAGNETIC FIELD

- N. Cooper, B. Halperin, I. Ruzin
- Physics
- 1 July 1996

We present a discussion of the linear thermoelectric response of an interacting electron gas in a quantizing magnetic field. Boundary currents can carry a significant fraction of the net current… Expand

Measuring the Chern number of Hofstadter bands with ultracold bosonic atoms

- M. Aidelsburger, M. Lohse, +6 authors N. Goldman
- Physics
- 16 July 2014

Chern numbers characterize the quantum Hall effect conductance—non-zero values are associated with topological phases. Previously only spotted in electronic systems, they have now been measured in… Expand

Optical flux lattices for ultracold atomic gases.

- N. Cooper
- Physics, Medicine
- Physical review letters
- 12 January 2011

We show that simple laser configurations can give rise to "optical flux lattices," in which optically dressed atoms experience a periodic effective magnetic flux with high mean density. These… Expand

Topological Kondo effect with Majorana fermions.

The Kondo effect is a striking consequence of the coupling of itinerant electrons to a quantum spin with degenerate energy levels. While degeneracies are commonly thought to arise from symmetries or… Expand

Propagating Magnetic Vortex Rings in Ferromagnets

- N. Cooper
- Physics
- 15 February 1999

It is shown that bulk ferromagnets support propagating nonlinear modes that are analogous to the vortex rings, or ``smoke rings,'' of fluid dynamics. These are circular loops of magnetic vorticity… Expand

Quantum phases of vortices in rotating Bose-Einstein condensates.

We investigate the ground states of weakly interacting bosons in a rotating trap as a function of the number of bosons, N, and the average number of vortices, N(V). We identify the filling fraction… Expand

Reaching fractional quantum Hall states with optical flux lattices.

- N. Cooper, J. Dalibard
- Physics, Medicine
- Physical review letters
- 14 December 2012

We present a robust scheme by which fractional quantum Hall states of bosons can be achieved for ultracold atomic gases. We describe a new form of optical flux lattice, suitable for commonly used… Expand

Scattering theory for Floquet-Bloch states

- T. Bilitewski, N. Cooper
- Physics
- 20 October 2014

Motivated by recent experimental implementations of artificial gauge fields for gases of cold atoms, we study the scattering properties of particles that are subjected to time-periodic Hamiltonians.… Expand

Stable skyrmions in two-component Bose-Einstein condensates.

- R. Battye, N. Cooper, P. Sutcliffe
- Physics, Medicine
- Physical review letters
- 25 September 2001

We show that stable Skyrmions exist in two-component atomic Bose-Einstein condensates, in the regime of phase separation. Using full three-dimensional simulations we find the stable Skyrmions with… Expand

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