113 citations · 508 across the 18 of their papers we have counts for
19 papers
Beyond superfluidity in driven non-equilibrium Bose-Einstein condensates
Florian Pinsker
The phenomenon of superfluidity in open Bose-Einstein condensates (BEC) is analysed numerically and analytically. It is found that a superfluid phase is feasible even above the spe…
Gaussian impurity moving through a Bose-Einstein superfluid
Florian Pinsker
In this paper a Gaussian impurity moving through an equilibrium Bose-Einstein condensate at T = 0 is studied. The problem can be described by a Gross-Pitaevskii equation, which is…
Effects of the non-parabolic kinetic energy on non-equilibrium polariton condensates
Florian Pinsker, Xinran Ruan, Tristram Alexander
In the study of non-equilibrium polariton condensates it is usually assumed that the dispersion relation of polaritons is parabolic in nature. We show that considering the true non…
Tunable magnetic alignment between trapped exciton-polariton condensates
H. Ohadi, Y. del Valle-Inclan Redondo, A. Dreismann +6
Tunable spin correlations are found to arise between two neighboring trapped exciton-polariton condensates which spin-polarize spontaneously. We observe a crossover from an antifer…
Fractional quantum mechanics in polariton condensates with velocity dependent mass
Florian Pinsker, Weizhu Bao, Yong Zhang +3
We introduce and analyze a novel mean-field model for polariton condensates with velocity dependence of the effective polariton mass due the photon and exciton components. The effe…
Spontaneous spin bifurcations and ferromagnetic phase transitions in a spinor exciton-polariton condensate
H. Ohadi, A. Dreismann, Y. G. Rubo +6
We observe a spontaneous parity breaking bifurcation to a ferromagnetic state in a spatially trapped exciton-polariton condensate. At a critical bifurcation density under nonresona…
Nonlinear Eigenmodes of a Polariton Harmonic Oscillator
Florian Pinsker, and Tristram J. Alexander
We investigate theoretically the quantum oscillator-like states recently observed experimentally in polariton condensates (Nat. Phys. 8, 190 (2012)). We consider a complex Gross-Pi…
Bright solitons in non-equilibrium coherent quantum matter
F. Pinsker, H. Flayac
We theoretically demonstrate a mechanism for bright soliton generation in spinor non-equilibrium Bose-Einstein condensates made of atoms or quasiparticles such as polaritons in sem…
Non-conservative Lagrangian method for half-dark solitons in spinor non-equilibrium Polariton condensates
Florian Pinsker
In this work I introduce a powerful analytical method to analyze states of non-equilibrium polariton Bose-Einstein condensates (BEC). It is shown that the condensate wave functions…
Multiple scattering induced negative refraction of matter waves
Florian Pinsker
Starting from fundamental multiple scattering theory it is shown that negative refraction indices are feasible for matter waves passing a well-defined ensemble of scatterers. A sim…
Transitions and excitations in a superfluid stream passing small impurities
Florian Pinsker, Natalia G. Berloff
We analyse asymptotically and numerically the motion around a single impurity and a network of impurities inserted in a two-dimensional superfluid. The criticality for the break do…
On-demand dark soliton train manipulation in a spinor polariton condensate
Florian Pinsker, Hugo Flayac
We theoretically demonstrate the generation of dark solitons trains in a one-dimensional exciton- polariton condensate within an experimentally trivial scheme. In particular we sho…
Nonlinear quantum piston for the controlled generation of vortex rings and soliton trains
Florian Pinsker, Natalia G. Berloff, Víctor M. Pérez-García
We propose a simple way to generate nonlinear excitations in a controllable way by managing interactions in Bose-Einstein condensates. Under the action of a quantum analogue of a c…
Optical computing with soliton trains in Bose-Einstein condensates
Florian Pinsker
Optical computing devices can be implemented based on controlled generation of soliton trains in single and multicomponent Bose-Einstein condensates (BEC). Our concepts utilize the…
Vortex Phases of Rotating Superfluids
M. Correggi, F. Pinsker, N. Rougerie +1
We report on the first mathematically rigorous proofs of a transition to a giant vortex state of a superfluid in rotating anharmonic traps. The analysis is carried out within two-d…
Giant vortex phase transition in rapidly rotating trapped Bose-Einstein condensates
Michele Correggi, Florian Pinsker, Nicolas Rougerie +1
A Bose-Einstein condensate of cold atoms is a superfluid and thus responds to rotation of its container by the nucleation of quantized vortices. If the trapping potential is su cie…
Critical Rotational Speeds for Superfluids in Homogeneous Traps
Michele Correggi, Florian Pinsker, Nicolas Rougerie +1
We present an asymptotic analysis of the effects of rapid rotation on the ground state properties of a superfluid confined in a two-dimensional trap. The trapping potential is assu…
Rotating superfluids in anharmonic traps: From vortex lattices to giant vortices
Michele Correggi, Florian Pinsker, Nicolas Rougerie +1
We study a superfluid in a rotating anharmonic trap and explicate a rigorous proof of a transition from a vortex lattice to a giant vortex state as the rotation is increased beyond…
Critical Rotational Speeds in the Gross-Pitaevskii Theory on a Disc with Dirichlet Boundary Conditions
M. Correggi, F. Pinsker, N. Rougerie +1
We study the two-dimensional Gross-Pitaevskii theory of a rotating Bose gas in a disc-shaped trap with Dirichlet boundary conditions, generalizing and extending previous results th…