Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Pecak, Daniel"'
Publikováno v:
Eur. Phys. J. A 60, 186 (2024)
Superfluid dilute neutron matter and ultracold gas, close to the unitary regime, exhibit several similarities. Therefore, to a certain extent, fermionic ultracold gases may serve as emulators of dilute neutron matter, which forms the inner crust of n
Externí odkaz:
http://arxiv.org/abs/2406.14158
Publikováno v:
Physical Review X 14, 041054 (2024)
We present a new numerical tool designed to probe the dense layers of neutron star crusts. It is based on the time-dependent Hartree-Fock-Bogoliubov theory with generalized Skyrme nuclear energy-density functionals of the Brussels-Montreal family. We
Externí odkaz:
http://arxiv.org/abs/2403.17499
Publikováno v:
Phys. Rev. C 109, 064320 (2024)
We examine the possible existence of quadrupole resonances in exotic atoms containing odd-$A$ nuclei. We find that the spin-flip of the de-exciting exotic particle can induce a resonance, altering the orbital angular momentum of the nucleus by one qu
Externí odkaz:
http://arxiv.org/abs/2401.06063
Publikováno v:
Phys. Rev. A 107, 023308 (2023)
We study binary atomic boson-fermion mixtures confined in one dimensional box potentials by few-body theory with contact interactions and mean-field many-body theory with density-density interactions. A variety of correlations and structures arise as
Externí odkaz:
http://arxiv.org/abs/2211.12454
Autor:
Pęcak, Daniel, Sowiński, Tomasz
Publikováno v:
Sci Rep 12, 17476 (2022)
Attractively interacting two-component mixtures of fermionic particles confined in a one-dimensional harmonic trap are investigated. Properties of balanced and imbalanced systems are systematically explored with the exact diagonalization approach, fo
Externí odkaz:
http://arxiv.org/abs/2202.07639
Publikováno v:
Phys. Rev. C 104, 055801 (2021)
We have studied systematically microscopic properties of a quantum vortex in neutron matter at finite temperatures and densities corresponding to different layers of the inner crust of a neutron star. To this end and in preparation of future simulati
Externí odkaz:
http://arxiv.org/abs/2104.05880
Autor:
Pęcak, Daniel, Sowiński, Tomasz
Publikováno v:
Phys. Rev. Research 2, 012077 (2020)
A system of a few attractively interacting fermionic $^6$Li atoms in one-dimensional harmonic confinement is investigated. Non-trivial inter-particle correlations induced by interactions in a particle-imbalanced system are studied in the framework of
Externí odkaz:
http://arxiv.org/abs/1911.04187
Publikováno v:
Phys. Rev. A 101, 023604 (2020)
Many-body systems undergoing quantum phase transitions reveal substantial growth of non-classical correlations between different parties of the system. This behavior is manifested by characteristic divergences of the von Neumann entropy. Here we show
Externí odkaz:
http://arxiv.org/abs/1909.08949
Publikováno v:
Phys. Rev. A 100, 063623 (2019)
We consider the ground states of binary atomic boson-boson and fermion-fermion mixtures confined in one-dimensional box potentials by simulating the systems using few-body models with delta-function interactions and many-body models with density-dens
Externí odkaz:
http://arxiv.org/abs/1906.03573
Autor:
Pęcak, Daniel, Sowiński, Tomasz
Publikováno v:
Phys. Rev. A 99, 043612 (2019)
Ground-state properties of a few attractively interacting ultra-cold atoms of different mass confined in a one-dimensional harmonic trap are studied in terms of the correlation noise. Depending on the mass ratio between the components' atoms, the int
Externí odkaz:
http://arxiv.org/abs/1809.10980