Quantum droplet molecules in Bose-Bose mixtures

Mohammed Elhadj, Khelifa; Al Sakkaf, L.; Boudjemâa, Abdelâali; Al Khawaja, U.

doi:10.1016/j.physleta.2023.129274

Physics Letters A

2024

DOI: 10.1016/j.physleta.2023.129274

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Quantum droplet molecules in Bose-Bose mixtures

Khelifa Mohammed Elhadj,

L. Al Sakkaf,

Abdelâali Boudjemâa

et al.

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2024

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Cited by 3 publications

References 42 publications

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Anderson localization of elementary excitations in disordered binary Bose mixtures: Effects of the Lee-Huang-Yang quantum and thermal corrections

Zohra,

Boudjemâa

2024

Phys. Rev. A

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We investigate analytically and numerically the Anderson localization of quasiparticles in binary Bose mixtures in the presence of the Lee-Huang-Yang quantum and thermal corrections subjected to correlated disordered potentials. We calculate the density profiles, the Bogoliubov quasiparticle modes, and the localization length in both the mixture and droplet phases. We show that for one-dimensional speckle potentials, the peculiar interplay of disorder and the Lee-Huang-Yang fluctuations may enhance localization in one component while inducing delocalization in the other. Our results reveal also that thermal fluctuations lead to the emergence of two and multiple localization maxima. In the droplet state, our findings indicate that the Anderson localization of quasiparticles is weak in the flat-top region since its excitation modes are restricted to those below the particle-emission threshold. Published by the American Physical Society 2024

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Anderson localization of elementary excitations in disordered binary Bose mixtures: Effects of the Lee-Huang-Yang quantum and thermal corrections

Zohra,

Boudjemâa

2024

Phys. Rev. A

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Elastic and inelastic scattering of flat-top solitons

Khawaja,

Alotaibi,

Sakkaf

2024

Phys. Rev. E

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We investigate the interaction between two flat-top solitons within the cubic-quintic nonlinear Schrödinger equation framework. Our study results point towards a significant departure of flat-top solitons' collisional characteristics from the conventional behaviors exhibited in the scattering dynamics of two bright solitons. Our investigation outlines specific regimes corresponding to the dual flat-top solitons' elastic and inelastic collisions. We determine regimes in the parameter space where exchange in the widths of the interacting flat-top solitons is possible, even within the elastic collision domain. We find a periodic occurrence of completely elastic scattering of flat-top solitons in terms of the solitons' parameters. Investigating the internal energy transfers between the solitons and the emitted radiation reveals the origin of inelasticity in flat-top soliton collisions. We perform a variational calculation that accounts for the amount of radiation produced by the collision and hence provides further insight into the physics underlying the loss of elasticity of collisions. Published by the American Physical Society 2024

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Localized structures in optical media and Bose-Einstein condensates: an overview of recent theoretical and experimental results

DUMITRU

2024

Rom. Rep. Phys.

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A survey of recent theoretical and experimental studies on localized structures that form and propagate in a broad class of optical and matter-wave media is presented. The article is structured as a resource paper that overviews a large series of theoretical and experimental results obtained in diverse research areas: linear and nonlinear optical waveforms, nonlinear surface waves, ultrashort few-cycle optical pulses, localized structures in fractional systems, rogue (freak) waves, and matter-wave localized states.

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Quantum droplet molecules in Bose-Bose mixtures

Cited by 3 publications

References 42 publications

Anderson localization of elementary excitations in disordered binary Bose mixtures: Effects of the Lee-Huang-Yang quantum and thermal corrections

Anderson localization of elementary excitations in disordered binary Bose mixtures: Effects of the Lee-Huang-Yang quantum and thermal corrections

Elastic and inelastic scattering of flat-top solitons

Localized structures in optical media and Bose-Einstein condensates: an overview of recent theoretical and experimental results

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