78 citations · 342 across the 23 of their papers we have counts for
11 papers · 1 filter
Dynamical development of long-range spatial coherence in non-equilibrium bosonic condensation
Bianca Rae Fabricante, Dąbrówka Biegańska, Paolo Comaron +14
Development of spontaneous coherence is one of the hallmarks of bosonic condensation in a variety of physical systems, such as cold atoms, confined photons, and hybrid light-matter…
Coherence of a non-equilibrium polariton condensate across the interaction-mediated phase transition
P. Comaron, E. Estrecho, M. Wurdack +9
The emergence of spatial coherence in a confined two-dimensional Bose gas of exciton-polaritons with tuneable interactions offers a unique opportunity to explore the role of intera…
Bogoliubov excitations of a polariton condensate in dynamical equilibrium with an incoherent reservoir
Maciej Pieczarka, Olivier Bleu, Eliezer Estrecho +9
The classic Bogoliubov theory of weakly interacting Bose gases rests upon the assumption that nearly all the bosons condense into the lowest quantum state at sufficiently low tempe…
Collective excitations of exciton-polariton condensates in a synthetic gauge field
D. Biegańska, M. Pieczarka, E. Estrecho +7
Collective (elementary) excitations of quantum bosonic condensates, including condensates of exciton polaritons in semiconductor microcavities, are a sensitive probe of interpartic…
Low-energy collective oscillations and Bogoliubov sound in an exciton-polariton condensate
E. Estrecho, M. Pieczarka, M. Wurdack +6
We report the observation of low-energy, low-momenta collective oscillations of an excitonpolariton condensate in a round "box" trap. The oscillations are dominated by the dipole a…
Spatial distribution of an optically induced excitonic reservoir below exciton-polariton condensation threshold
M. Boozarjmehr, M. Steger, K. West +5
Optical trapping and manipulation of microcavity exciton polaritons rely on effective potentials induced by the interaction of polaritons with a reservoir of high energy excitonic…
Observation of quantum depletion in a nonequilibrium exciton-polariton condensate
Maciej Pieczarka, Eliezer Estrecho, Maryam Boozarjmehr +9
The property of superfluidity, first discovered in liquid 4He, is closely related to Bose-Einstein condensation (BEC) of interacting bosons. However, even at zero temperature, when…
Effect of optically-induced potential on the energy of trapped exciton-polaritons below the condensation threshold
M. Pieczarka, M. Boozarjmehr, E. Estrecho +8
Exciton-polaritons (polaritons herein) offer a unique nonlinear platform for studies of collective macroscopic quantum phenomena in a solid state system. Shaping of polariton flow…
Theory of relaxation oscillations in exciton-polariton condensates
Andrzej Opala, Maciej Pieczarka, Michał Matuszewski
We provide an analytical and numerical description of relaxation oscillations in the nonresonantly pumped polariton condensate. The presented considerations are based on the open d…
Dynamics of defect-induced dark solitons in an exciton-polariton condensate
Andrzej Opala, Maciej Pieczarka, Nataliya Bobrovska +1
We study theoretically the emission of dark solitons induced by a moving defect in a nonresonantly pumped exciton-polariton condensate. The number of created dark solitons per unit…
Relaxation Oscillations and Ultrafast Emission Pulses in a Disordered Expanding Polariton Condensate
Maciej Pieczarka, Marcin Syperek, Łukasz Dusanowski +5
Semiconductor microcavities are often influenced by structural imperfections, which can disturb the flow and dynamics of exciton-polariton condensates. Additionally, in exciton-pol…