Zobrazeno 1 - 10
of 467
pro vyhledávání: '"Petrov, D P"'
Autor:
Givois, J., Petrov, D. S.
Publikováno v:
Few-Body Syst. 65, 80 (2024)
By developing the mean-field theory valid for large $N$, we investigate the problem of two light fermions interacting via a zero-range potential with $N$ heavy fermions in two dimensions. We obtain numerical evidence that this system is never fully b
Externí odkaz:
http://arxiv.org/abs/2405.04035
Autor:
Petrov, D. S.
The discovery of ultracold dilute liquids has significantly elevated our interest in various phenomena which go under the name of beyond-mean-field (BMF) physics. In these lecture notes we give an elementary introduction to the quantum stabilization
Externí odkaz:
http://arxiv.org/abs/2312.05336
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:
SciPost Phys. 17, 050 (2024)
We study binding of $N$ identical heavy fermions by a light atom in two dimensions assuming zero-range attractive heavy-light interactions. By using the mean-field theory valid for large $N$ we show that the $N+1$ cluster is bound when the mass ratio
Externí odkaz:
http://arxiv.org/abs/2310.11330
Publikováno v:
SciPost Phys. 14, 091 (2023)
For sufficiently large mass ratios the attractive exchange force caused by a single light atom interacting with a few heavy identical fermions can overcome their Fermi degeneracy pressure and bind them into an $N+1$ cluster. Here, by using a mean-fie
Externí odkaz:
http://arxiv.org/abs/2207.04742
Autor:
Kiselev, N., Rosenbush, V., Petrov, D., Luk'yanyk, I., Ivanova, O. V., Pit, N. V., Antoniuk, K. A., Afanasiev, V. L.
We present results of polarimetric, photometric, and spectral observations of the near-Earth asteroid (3200) Phaethon carried out at the 6-m BTA telescope of the Special Astrophysical Observatory and the 2.6-m and 1.25-m telescopes of the Crimean Ast
Externí odkaz:
http://arxiv.org/abs/2206.00911
Publikováno v:
Phys. Rev. A 106, L011302 (2022)
We consider the problem of $N$ identical fermions interacting via a zero-range attractive potential with a lighter atom in one dimension. Using the few-body approach based on the Skorniakov and Ter-Martirosian equation, we determine the energies and
Externí odkaz:
http://arxiv.org/abs/2205.01018
Publikováno v:
Горные науки и технологии, Vol 8, Iss 4, Pp 290-302 (2023)
When designing the parameters for the development of oil and gas field at significant depths, crucial to comprehend how certain factors affect the behavior of reservoir rocks and host rocks. These factors include the high level of rock stress, the am
Externí odkaz:
https://doaj.org/article/e59624cabd314c1ab72181ac01e070a4
Publikováno v:
Acta Medica Bulgarica, Vol 50, Iss 3, Pp 23-28 (2023)
Poliomyelitis is the infection that, after smallpox, is a “serious candidate” for eradication worldwide. In accordance with the WHO strategy for 2022-2026, epidemiological surveillance of acute flaccid paralysis (AFP) is carried out with the aim
Externí odkaz:
https://doaj.org/article/95c7bc36e8e243a2aadbb62bc6846d54
We theoretically calculate and experimentally measure the beyond-mean-field (BMF) equation of state in a coherently-coupled two-component Bose-Einstein condensate (BEC) in the regime where averaging of the interspecies and intraspecies coupling const
Externí odkaz:
http://arxiv.org/abs/2105.11723