Heavy-ion collisions and fission dynamics with the time-dependent Hartree–Fock theory and its extensions

C Simenel, AS Umar - Progress in Particle and Nuclear Physics, 2018 - Elsevier
Microscopic methods and tools to describe nuclear dynamics have considerably been
improved in the past few years. They are based on the time-dependent Hartree–Fock …

Universal aspects of a strongly interacting impurity in a dilute Bose condensate

P Massignan, N Yegovtsev, V Gurarie - Physical review letters, 2021 - APS
We study the properties of an impurity immersed in a weakly interacting Bose gas, ie, of a
Bose polaron. In the perturbatively tractable limit of weak impurity-boson interactions many …

Mobile impurity in a Bose-Einstein condensate and the orthogonality catastrophe

NE Guenther, R Schmidt, GM Bruun, V Gurarie… - Physical Review A, 2021 - APS
We analyze the properties of an impurity in a dilute Bose-Einstein condensate (BEC). The
quasiparticle residue of a static impurity in an ideal BEC is known to vanish exponentially …

Quantum self-bound droplets in Bose-Bose mixtures: Effects of higher-order quantum and thermal fluctuations

N Guebli, A Boudjemâa - Physical Review A, 2021 - APS
We systematically study the effects of higher-order quantum and thermal fluctuations on the
stabilization of self-bound droplets in Bose mixtures employing the time-dependent Hartree …

Strong coupling Bose polarons in a two-dimensional gas

LAP Ardila, GE Astrakharchik, S Giorgini - Physical Review Research, 2020 - APS
We study the properties of Bose polarons in two dimensions using quantum Monte Carlo
techniques. Results for the binding energy, the effective mass, and the quasiparticle residue …

Fluctuations and quantum self-bound droplets in a dipolar Bose-Bose mixture

A Boudjemâa - Physical Review A, 2018 - APS
We systematically investigate the properties of three-dimensional dipolar binary Bose
mixture at low temperatures. A set of coupled self-consistent equations of motion are derived …

Quasiparticle nature of the Bose polaron at finite temperature

G Pascual, J Boronat - Physical review letters, 2021 - APS
The Bose polaron has attracted theoretical and experimental interest because the mobile
impurity is surrounded by a bath that undergoes a superfluid-to-normal phase transition …

Quantum and thermal fluctuations in two-component Bose gases

A Boudjemâa - Physical Review A, 2018 - APS
We study the effects of quantum and thermal fluctuations on Bose-Bose mixtures at finite
temperature employing the time-dependent Hartree-Fock-Bogoliubov (TDHFB) theory. The …

Spontaneous formation of bright solitons in self-localized impurities in Bose–Einstein condensates

A Boudjemâa - Communications in Nonlinear Science and Numerical …, 2016 - Elsevier
We study the formation of bright solitons in the impurity component of Bose–Einstein
condensate–impurity mixture by using the time-dependent Hartree–Fock–Bogoliubov …

Two-and three-body effective potentials between impurities in ideal BEC

G Panochko, V Pastukhov - Journal of Physics A: Mathematical …, 2021 - iopscience.iop.org
We exactly calculate the full temperature dependence of Casimir-like forces appearing
between two and three static impurities loaded in the ideal Bose gas below the Bose …