Zobrazeno 1 - 10
of 241
pro vyhledávání: '"Astrakharchik, G."'
We predict that ultracold bosonic dipolar gases, confined within a multilayer geometry, may undergo self-assembling processes, leading to the formation of chain gases and solids. These dipolar chains, with dipoles aligned across different layers, eme
Externí odkaz:
http://arxiv.org/abs/2403.14511
Publikováno v:
Phys. Rev. Research 6, L022014, 2024
We study the thermal properties of impurities embedded in a repulsive Bose gas under a harmonic trapping potential. In order to obtain exact structural properties in this inhomogeneous many-body system, we resort to the path-integral Monte Carlo meth
Externí odkaz:
http://arxiv.org/abs/2401.03926
Publikováno v:
AVS Quantum Sci. 6, 023201 (2024)
We investigate the ground state properties of $N$ bosons with attractive zero-range interactions characterized by the scattering length $a>0$ and confined to the surface of a sphere of radius $R$. We present the analytic solution of the problem for $
Externí odkaz:
http://arxiv.org/abs/2312.04984
Publikováno v:
Nature communications 14, 1647 (2023)
Induced interactions and bound states of charge carriers immersed in a quantum medium are crucial for the investigation of quantum transport. Ultracold atom-ion systems can provide a convenient platform for studying this problem. Here, we investigate
Externí odkaz:
http://arxiv.org/abs/2206.03476
Publikováno v:
SciPost Phys. 13, 031 (2022)
The energy of ultra-dilute quantum many-body systems is known to exhibit a universal dependence on the gas parameter $x=n a_0^d$, with $n$ the density, $d$ the dimensionality of the space ($d=1,2,3$) and $a_0$ the $s$-wave scattering length. The univ
Externí odkaz:
http://arxiv.org/abs/2112.11094
Publikováno v:
SciPost Phys. 12, 092 (2022)
We address the origins of the quasi-periodic breathing observed in [Phys. Rev.\ X vol. 9, 021035 (2019)] in disk-shaped harmonically trapped two-dimensional Bose condensates, where the quasi-period $T_{\text{quasi-breathing}}\sim$~$2T/7$ and $T$ is t
Externí odkaz:
http://arxiv.org/abs/2108.09915
Fusion energy stands out as a promising alternative for a future decarbonised energy system. To be sustainable, future fusion nuclear reactors will have to produce their own tritium. In the so-called breeding blanket of a reactor, the neutron bombard
Externí odkaz:
http://arxiv.org/abs/2107.09017
Publikováno v:
Phys. Rev. Lett. 128, 063401 (2022)
We show that ultradilute quantum liquids can be formed with ultracold bosonic dipolar atoms in a bilayer geometry. Contrary to previous realizations of ultradilute liquids, there is no need for stabilizing the system with an additional repulsive shor
Externí odkaz:
http://arxiv.org/abs/2105.13241
Publikováno v:
SciPost Phys. 10, 114 (2021)
The recently proposed map [arXiv:2011.01415] between the hydrodynamic equations governing the two-dimensional triangular cold-bosonic breathers [Phys. Rev. X 9, 021035 (2019)] and the high-density zero-temperature triangular free-fermionic clouds, bo
Externí odkaz:
http://arxiv.org/abs/2102.12184
Publikováno v:
Scientific Reports 11, 19437 (2021)
A halo is an intrinsically quantum object defined as a bound state of a spatial size which extends deeply into the classically forbidden region. Previously, halos have been observed in bound states of two and less frequently of three atoms. Here, we
Externí odkaz:
http://arxiv.org/abs/2101.05969