Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Zin, Pawel"'
We investigate beyond-mean-field corrections to the energy of an elongated homogeneous Bose gas strongly confined in two directions, with dipoles aligned along the long axis of the system. When the dipolar interaction reaches its critical strength, t
Externí odkaz:
http://arxiv.org/abs/2405.15433
Autor:
Zin, Pawel
Up until now, a consistent causal theory of point charged particles (for example electrons) interacting with electromagnetic field is not known. The well-known problem is that the standard Lorentz force alone (in the case of point particles) does not
Externí odkaz:
http://arxiv.org/abs/2203.02541
We describe a quantum droplet of a Bose-Bose mixture squeezed by an external harmonic forces in one spatial direction. Our approach is based on the self-consistent method formulated in [1]. The true spatial droplet profile in the direction of confine
Externí odkaz:
http://arxiv.org/abs/2202.10113
We define a formalism of a self-consistent description of the ground state of a weakly interacting Bose system, accounting for higher order terms in expansion of energy in the diluteness parameter. The approach is designed to be applied to a Bose-Bos
Externí odkaz:
http://arxiv.org/abs/2202.10109
Publikováno v:
New J. Phys. 23 033022 (2021)
Bose-Bose droplets are self-bound objects emerging from a mixture of two interacting Bose-Einstein condensates when their interactions are appropriately tuned. During droplet formation three continuous symmetries of the system's Hamiltonian are broke
Externí odkaz:
http://arxiv.org/abs/2011.05135
Publikováno v:
Phys. Rev. A 103, 013312 (2021)
We study the problem of the stability of a two-component droplet. The standard solution known from the literature is based on a particular form of the mean field energy functional, in particular on distinction of hard mode and soft mode contributions
Externí odkaz:
http://arxiv.org/abs/2007.11817
We study the beyond-mean-field corrections to the energy of a dipolar Bose gas confined to two dimensions by a box potential with dipoles oriented in plane. At a critical strength of the dipolar interaction the system becomes unstable on the mean fie
Externí odkaz:
http://arxiv.org/abs/1911.02384
Publikováno v:
Phys. Rev. A 101, 033616 (2020)
A collision of Bose-Einstein condensates is a useful source of single nonclassically correlated pairs of atoms. Here, we consider elastic scattering of atoms from elongated clouds taking into account an effective, finite duration of the collision due
Externí odkaz:
http://arxiv.org/abs/1908.00264
Autor:
Rakshit, Debraj, Karpiuk, Tomasz, Zin, Paweł, Brewczyk, Mirosław, Lewenstein, Maciej, Gajda, Mariusz
Publikováno v:
New J. Phys. 21, 073027 (2019)
We study weakly interacting mixtures of ultracold atoms composed of bosonic and fermionic species in 2D and 1D. When interactions between particles are appropriately tuned, self-bound quantum liquids can be formed. We show that while formation of the
Externí odkaz:
http://arxiv.org/abs/1808.04793
Publikováno v:
Phys. Rev. A 98, 051603 (2018)
We study a liquid quantum droplets in a mixture of two-component Bose-Einstein condensates under a variable confinement introduced along one or two spatial dimensions. Despite the atom-atom scattering has a three-dimensional character, discreetness o
Externí odkaz:
http://arxiv.org/abs/1805.11186