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UID:0-924@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20231110T134500
DTEND;TZID=Europe/Paris:20231110T151500
DTSTAMP:20231027T142951Z
URL:https://www.lptms.universite-paris-saclay.fr/seminars/informal-quantum
 -seminar-jules-givois/
SUMMARY:Informal Quantum Seminar: Jules Givois - Salle des séminaires du F
 AST et du LPTMS\, bâtiment Pascal n°530 - 10 Nov 23 13:45
DESCRIPTION:Binding of $N+1$-clusters in mass-imbalanced fermionic mixtures
  in low dimensions Jules Givois (LPTMS)In the last 10 years\, the few-bod
 y bound states made of $1$ light fermion interacting attractively with $N$
  heavy fermions were analyzed in all spatial dimensions. To address the la
 rge $N$ limit and to investigate the formation of $N+1$ clusters in fermio
 nic mixtures with weak attraction\, we developed a mean-field approach bas
 ed on the Thomas-Fermi approximation for the heavy atoms kinetic energy in
  both one and two dimensions. We find that in the two cases the $N$ heavy 
 fermions can be bound by a single light fermion as long as the mass-ratio 
 is large enough. We show that the bound character of the system can be des
 cribed by a single parameter that depends on the dimensions and which comb
 ines the mass-ratio and $N$. In two dimensions\, scale invariance plays a 
 determinant role and we present a way to overcome it using beyond mean-fie
 ld corrections.
CATEGORIES:seminars
LOCATION:Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°53
 0\, rue André Riviere\, Orsay\, 91405\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Riviere\, Orsay\
 , 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Salle des séminaires du FAST 
 et du LPTMS\, bâtiment Pascal n°530:geo:0,0
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