Zobrazeno 1 - 10
of 2 417
pro vyhledávání: '"Baran, V."'
Autor:
Baran, V. V., Dukelsky, J.
Publikováno v:
Phys. Rev. C 103, 054317 (2021)
The ground state pairing correlations in finite fermionic systems are described with a high degree of accuracy within a variational approach based on a combined coupled-cluster and particle-number-projected BCS ansatz. The flexibility of this symmetr
Externí odkaz:
http://arxiv.org/abs/2102.08233
Анализируются результаты исследований работы светодиодных лент и прожекторов, которые являются нелинейной нагрузкой с гармоническими
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1594::ed1ec6379e7fd445a145e5d365e76da2
http://elib.bsu.by/handle/123456789/241883
http://elib.bsu.by/handle/123456789/241883
The formal equivalence between the quartetting picture and the symmetry restored BCS picture is established for the ground state correlations induced by the general isovector-isoscalar pairing interaction. Multiple ground state structures compatible
Externí odkaz:
http://arxiv.org/abs/2009.11588
Publikováno v:
Phys. Rev. C 102, 061301 (2020)
The formal implications of a quartet coherent state ansatz for proton-neutron pairing are analyzed. Its nonlinear annihilation operators, which generalize the BCS linear quasiparticle operators, are computed in the quartetting case. Their structure i
Externí odkaz:
http://arxiv.org/abs/2009.00932
The vibrational structure of the Pygmy Dipole Resonance (PDR) is investigated within a quantum many-body treatment with extended separable interactions able to encode the dependence of nuclear symmetry energy on density. A new picture of PDR is unvei
Externí odkaz:
http://arxiv.org/abs/2006.00638
Autor:
Baran, V. V., Delion, D. S.
Publikováno v:
Physics Letters B 805, 135462 (2020)
We introduce a BCS-like theory for the quartet correlations induced by the isovector pairing interaction. It is based on a coherent state of BCS type and, unlike usual mean field approaches, it displays a vanishing pair anomalous density $\langle c^\
Externí odkaz:
http://arxiv.org/abs/1909.10192
Autor:
Baran, V. V., Delion, D. S.
Publikováno v:
Phys. Rev. C 100, 034326 (2019)
We study the nontrivial interplay of the well known \emph{pairing} and the more complex \emph{quarteting} correlations in the particular case of $N>Z$ atomic nuclei. Within the new Analytical Disentangled Condensate model, by implementing the notion
Externí odkaz:
http://arxiv.org/abs/1905.06639
Autor:
Baran, V. V., Delion, D. S.
Publikováno v:
Phys. Rev. C 99, 064311 (2019)
We study the description of single-species and isovector pairing correlations in the framework of the projected-BCS (PBCS) and the Quartet Condensation Model (QCM) from a particle-hole perspective and we introduce the representation of the QCM quarte
Externí odkaz:
http://arxiv.org/abs/1902.00065
Autor:
Baran, V. V., Delion, D. S.
Publikováno v:
Phys. Rev. C 99, 031303 (2019)
Within the Quartet Condensation Model (QCM), the isovector pairing correlations for $N = Z$ nuclei are described with a very high accuracy by a condensate of $\alpha$-like quartets. The usual approach involves cumbersome recurrence relations in order
Externí odkaz:
http://arxiv.org/abs/1901.04759