Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Bose polarons"'
Publikováno v:
Atoms, Vol 10, Iss 2, p 55 (2022)
Polaron quasiparticles are formed when a mobile impurity is coupled to the elementary excitations of a many-particle background. In the field of ultracold atoms, the study of the associated impurity problem has attracted a growing interest over the l
Externí odkaz:
https://doaj.org/article/ee1eff9d88824c2eaf9f2e17b2407a2f
Autor:
Felipe Isaule, Ivan Morera
Publikováno v:
Condensed Matter, Vol 7, Iss 1, p 9 (2022)
We provide a detailed presentation of the functional renormalisation group (FRG) approach for weakly-interacting Bose–Bose mixtures, including a complete discussion on the RG equations. To test this approach, we examine thermodynamic properties of
Externí odkaz:
https://doaj.org/article/5de785fd5ed34121a02add9d1ec9d607
Publikováno v:
New Journal of Physics, Vol 23, Iss 4, p 043051 (2021)
We investigate the crossover of the impurity-induced dynamics, in trapped one-dimensional Bose polarons subject to radio frequency (RF) pulses of varying intensity, from an adiabatic to a diabatic regime. Utilizing adiabatic pulses for either weak re
Externí odkaz:
https://doaj.org/article/2a411bde9ac7489caf8cb7f37b4fb879
Publikováno v:
New Journal of Physics, Vol 22, Iss 4, p 043007 (2020)
We study the ground state properties and non-equilibrium dynamics of two spinor bosonic impurities immersed in a one-dimensional bosonic gas upon applying an interspecies interaction quench. For the ground state of two non-interacting impurities we r
Externí odkaz:
https://doaj.org/article/50f9cd11da2a4d49850bd8e2e2aad93c
Autor:
Tan, Li Bing
When a quantum impurity is immersed in a bath with which it interacts, it becomes dressed by the excitations of the bath. The dressed quantum impurity can then be described as a quasiparticle with renormalised properties, commonly called the polaron-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e21ebbfbc178905a2b0d7e8c7fb7b6f
Autor:
Felipe Isaule, Ivan Morera
Publikováno v:
Condensed Matter; Volume 7; Issue 1; Pages: 9
We provide a detailed presentation of the functional renormalisation group (FRG) approach for weakly-interacting Bose-Bose mixtures, including a complete discussion on the RG equations. To test this approach, we examine thermodynamic properties of ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3421748e9bc38bbb18ba0942791d1920
http://arxiv.org/abs/2112.06585
http://arxiv.org/abs/2112.06585
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
We study the properties of a single impurity in a dilute Bose gas, a Bose polaron, using the functional renormalization group. We use an ansatz for the effective action motivated by a derivative expansion, and we compute the energies of the attractiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fd76ee934c56bab5b7c04e1b4b1046d
https://doi.org/10.1103/physreva.104.023317
https://doi.org/10.1103/physreva.104.023317
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
We study the properties of Bose polarons in two dimensions using quantum Monte Carlo techniques. Results for the binding energy, the effective mass, and the quasiparticle residue are reported for a typical strength of interactions in the gas and for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0f9a5aa09ced40fdd03ebe94e107c02
http://arxiv.org/abs/1907.01533
http://arxiv.org/abs/1907.01533