264 citations · 731 across the 10 of their papers we have counts for
10 papers
Field-theoretical study of the Bose polaron
Steffen Patrick Rath, Richard Schmidt
We study the properties of the Bose polaron, an impurity strongly interacting with a Bose-Einstein condensate, using a field-theoretic approach and make predictions for the spectra…
Non-local order in Mott insulators, Duality and Wilson Loops
Steffen Patrick Rath, Wolfgang Simeth, Manuel Endres +1
It is shown that the Mott insulating and superfluid phases of bosons in an optical lattice may be distinguished by a non-local 'parity order parameter' which is directly accessible…
Efimov physics beyond universality
Richard Schmidt, Steffen Patrick Rath, Wilhelm Zwerger
We provide an exact solution of the Efimov spectrum in ultracold gases within the standard two-channel model for Feshbach resonances. It is shown that the finite range in the Feshb…
Quantum Capillary Waves at the Superfluid--Mott Insulator Interface
Steffen Patrick Rath, Boris Spivak, Wilhelm Zwerger
We discuss quantum fluctuations of the interface between a superfluid and a Mott-insulating state of ultracold atoms in a trap. The fluctuations of the boundary are due to a new ty…
Full counting statistics of the interference contrast from independent Bose-Einstein condensates
Steffen Patrick Rath, Wilhelm Zwerger
We show that the visibility in interference experiments with Bose-Einstein condensates is directly related to the condensate fraction. The probability distribution of the contrast…
The equilibrium state of a trapped two-dimensional Bose gas
Steffen P. Rath, Tarik Yefsah, Kenneth J. Guenter +5
We study experimentally and numerically the equilibrium density profiles of a trapped two-dimensional Rb Bose gas, and investigate the equation of state of the homogeneous s…