291 citations · 1.4k across the 9 of their papers we have counts for
9 papers
Bose-Einstein condensation and the magnetically ordered state of TlCuCl3
Jens Jensen, Henrik Smith
The dimerized S=1/2 spins of the Cu ions in TlCuCl3 are ordered antiferromagnetically in the presence of a field larger than about 54 kOe in the zero-temperature limit. Within the…
Static properties of positive ions in atomic Bose-Einstein condensates
P. Massignan, C. J. Pethick, H. Smith
The excess number of atoms around an ion immersed in a Bose-Einstein condensate is determined as a function of the condensate density far from the ion. We use thermodynamic argumen…
Band structure, elementary excitations, and stability of a Bose-Einstein condensate in a periodic potential
M. Machholm, C. J. Pethick, H. Smith
We investigate the band structure of a Bose-Einstein condensate in a one-dimensional periodic potential by calculating stationary solutions of the Gross-Pitaevskii equation which h…
Loop structure of the lowest Bloch band for a Bose-Einstein condensate
Dmitri Diakonov, L. M. Jensen, C. J. Pethick +1
We investigate analytically and numerically Bloch waves for a Bose--Einstein condensate in a sinusoidal external potential. At low densities the dependence of the energy on the qua…
Influence of Induced Interactions on the Superfluid Transition in Dilute Fermi Gases
H. Heiselberg, C. J. Pethick, H. Smith +1
We calculate the effects of induced interactions on the transition temperature to the BCS state in dilute Fermi gases. For a pure Fermi system with 2 species having equal densities…
Zero-temperature phase diagram of binary boson-fermion mixtures
L. Viverit, C. J. Pethick, H. Smith
We calculate the phase diagram for dilute mixtures of bosons and fermions at zero temperature. The linear stability conditions are derived and related to the effective boson-induce…
Theory of Coherent Time-dependent Transport in One-dimensional Multiband Semiconductor Superlattices
Jon Rotvig, Antti-Pekka Jauho, Henrik Smith
We present an analytical study of one-dimensional semiconductor superlattices in external electric fields, which may be time-dependent. A number of general results for the (quasi)e…
Bloch oscillations, Zener tunneling and Wannier-Stark ladders in the time-domain
J. Rotvig, A. P. Jauho, H. Smith
We present a time-domain analysis of carrier dynamics in a semiconductor superlattice with two minibands. Integration of the density-matrix equations of motion reveals a number of…
Coulomb drag between two-dimensional electron systems
Antti-Pekka Jauho, Henrik Smith
The Coulomb contribution to the temperature-dependent rate of momentum transfer, , between two electron systems in parallel layers is determined by setting up two coupled Bo…