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The trapped two-dimensional Bose gas: from Bose-Einstein condensation to Berezinskii-Kosterlitz-Thouless physics
Zoran Hadzibabic, Peter Krüger, Marc Cheneau +2
We analyze the results of a recent experiment with bosonic rubidium atoms harmonically confined in a quasi-two-dimensional geometry. In this experiment a well defined critical poin…
Many-Body Physics with Ultracold Gases
Immanuel Bloch, Jean Dalibard, Wilhelm Zwerger
This article reviews recent experimental and theoretical progress on many-body phenomena in dilute, ultracold gases. Its focus are effects beyond standard weak-coupling description…
Critical Point of an Interacting Two-Dimensional Atomic Bose Gas
Peter Krüger, Zoran Hadzibabic, Jean Dalibard
We have measured the critical atom number in an array of harmonically trapped two-dimensional (2D) Bose gases of rubidium atoms at different temperatures. We found this number to b…
Measuring the one-particle excitations of ultracold fermionic atoms by stimulated Raman spectroscopy
Tung-Lam Dao, Antoine Georges, Jean Dalibard +2
We propose a Raman spectroscopy technique which is able to probe the one-particle Green's function, the Fermi surface, and the quasiparticles of a gas of strongly interacting ultra…
Seeing zeros of random polynomials: quantized vortices in the ideal Bose gas
Yvan Castin, Zoran Hadzibabic, Sabine Stock +2
We propose a physical system allowing one to experimentally observe the distribution of the complex zeros of a random polynomial. We consider a degenerate, rotating, quasi-ideal at…