22 citations · 126 across the 19 of their papers we have counts for
22 papers
Radial dam breaks in a two-dimensional droplet bearing environment
F. Bristy, S. Chandramouli, G. A. Bougas +3
The controlled dynamical generation of radial dam break flows (DBFs) is demonstrated in two-dimensional droplet environments. These ultracold mixtures feature competing mean-field…
Faraday pattern formation in dipolar superfluid and supersolid quantum gases
Sumit Semwal, Shawan K. Jha, G. A. Bougas +2
We investigate Faraday instabilities in three-dimensional parametrically driven trapped dipolar quantum gases within the framework of the extended Gross-Pitaevskii equation. In the…
Two-dimensional solitons in extended GPE models with Lee-Huang-Yang corrections
G. N. Koutsokostas, F. Bristy, E. C. Psychogiou +5
We investigate the existence and dynamics of two-dimensional solitary waves in a quantum droplet environment described by the extended Gross-Pitaevskii equation featuring logarithm…
Generation of dipolar supersolids through a barrier sweep in droplet lattices
E. L. Brakensiek, G. A. Bougas, S. I. Mistakidis
We propose a dynamical protocol to generate supersolids in dipolar quantum gases by sweeping a repulsive Gaussian barrier through an incoherent quasi-one-dimensional droplet array.…
First-order phase transition in atom-molecule quantum degenerate mixtures with coherent three-body recombination
G. A. Bougas, A. Vardi, H. R. Sadeghpour +2
We map the phase diagram of a two-mode atom-molecule Bose-Einstein condensate with Fano-Feshbach and coherent three-body recombination (cTBR) terms. The standard second order phase…
Correlated many-body quantum dynamics of the Peregrine soliton
D. Diplaris, G. A. Bougas, P. G. Kevrekidis +3
We explore the correlated dynamics underlying the formation of the quantum Peregrine soliton, a prototypical rogue-wave excitation, utilizing interaction quenches from repulsive to…
Observation of vector rogue waves in repulsive three-component atomic mixtures
G. A. Bougas, G. C. Katsimiga, S. Mossman +3
Rogue waves are extreme evanescent nonlinear structures that are challenging to observe in atomic gases, as their emergence requires a dynamically unstable attractive environment.…
Signatures of rigidity and second sound in dipolar supersolids
G. A. Bougas, T. Bland, H. R. Sadeghpour +1
We propose a dynamical protocol to probe the rigidity and phase coherence of dipolar supersolids by merging initially separated fragments in quasi-one-dimensional (1D) double-well…
Localization and splitting of a quantum droplet with a potential defect
F. Bristy, G. A. Bougas, G. C. Katsimiga +1
We unravel the existence and nonequilibrium response of one-dimensional harmonically trapped droplet configurations in the presence of a central potential barrier or well. For fixe…
Droplet-gas phases and their dynamical formation in particle imbalanced mixtures
Jose Carlos Pelayo, George A. Bougas, Thomás Fogarty +2
We explore the ground state phase diagram and nonequilibrium dynamics of genuine two-component particle-imbalanced droplets in both isotropic and anisotropic three-dimensional conf…
Generation of wave turbulence in dipolar gases driven across their phase transitions
G. A. Bougas, K. Mukherjee, S. I. Mistakidis
Ultracold quantum gases with long-range anisotropic interactions host novel exotic phases of matter, such as supersolids, exhibiting both rigid and superfluid characteristics. The…
Phases and dynamics of quantum droplets in the crossover to two-dimensions
Jose Carlos Pelayo, George Bougas, Thomás Fogarty +2
We explore the ground states and dynamics of ultracold atomic droplets in the crossover region from three to two dimensions by solving the two-dimensional and the quasi two-dimensi…
Density effects on the interferometry of Efimov states by modulating magnetic fields
G. Bougas, S. I. Mistakidis, P. Giannakeas
Dynamical association of Efimov trimers in thermal gases by means of modulated magnetic fields has proven very fruitful in determining the binding energy of trimers. The latter was…
Stability and dynamics of nonlinear excitations in a two-dimensional droplet-bearing environment
G. Bougas, G. C. Katsimiga, P. G. Kevrekidis +1
We unravel stationary states in the form of dark soliton stripes, bubbles, and kinks embedded in a two-dimensional droplet-bearing setting emulated by an extended Gross-Pitaevskii…
Generic transverse stability of kink structures in atomic and optical nonlinear media with competing attractive and repulsive interactions
S. I. Mistakidis, G. Bougas, G. C. Katsimiga +1
We demonstrate the existence and stability of one-dimensional (1D) topological kink configurations immersed in higher-dimensional bosonic gases and nonlinear optical setups. Our an…
Impact of dark states on the stationary properties of quantum particles with off-centered interactions in one dimension
G. Bougas, N. L. Harshman, P. Schmelcher
We present a generalization of the two-body contact interaction for non-relativistic particles trapped in one dimension. The particles interact only when they are a distance c apar…
Interferometry of Efimov states in thermal gases by modulated magnetic fields
G. Bougas, S. I. Mistakidis, P. Schmelcher +2
We demonstrate that an interferometer based on modulated magnetic field pulses enables precise characterization of the energies and lifetimes of Efimov trimers irrespective of the…
Dynamical excitation processes and correlations of three-body two-dimensional mixtures
G. Bougas, S. I. Mistakidis, P. Giannakeas +1
A scheme is proposed to dynamically excite distinct eigenstate superpositions in three-body Bose-Fermi mixtures confined in a two-dimensional harmonic trap. The system is initializ…
Few-body correlations in two-dimensional Bose and Fermi ultracold mixtures
G. Bougas, S. I. Mistakidis, P. Giannakeas +1
Few-body correlations emerging in two-dimensional harmonically trapped mixtures, are comprehensively investigated. The presence of the trap leads to the formation of atom-dimer and…
Pattern formation of correlated impurities subjected to an impurity-medium interaction pulse
G. Bougas, S. I. Mistakidis, P. Schmelcher
We study the correlated dynamics of few interacting bosonic impurities immersed in a one-dimensional harmonically trapped bosonic environment. The mixture is exposed to a time-depe…
Stationary and dynamical properties of two harmonically trapped bosons in the crossover from two dimensions to one
G. Bougas, S. I. Mistakidis, G. M. Alshalan +1
We unravel the stationary properties and the interaction quench dynamics of two bosons, confined in a two-dimensional anisotropic harmonic trap. A transcendental equation is derive…
Analytical treatment of the interaction quench dynamics of two bosons in a two-dimensional harmonic trap
G. Bougas, S. I. Mistakidis., P. Schmelcher
We investigate the quantum dynamics of two bosons, trapped in a two-dimensional harmonic trap, upon quenching arbitrarily their interaction strength thereby covering the entire ene…