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Dynamic structure function of a cold Fermi gas at unitarity

Autor
Astrakharchik, G.; Boronat, J.; Krotscheck, E.; Lichtenegger, T.
Tipus d'activitat
Article en revista
Revista
Journal of physics: conference series
Data de publicació
2014-08-14
Volum
529
Número
1
DOI
https://doi.org/10.1088/1742-6596/529/1/012009 Obrir en finestra nova
Projecte finançador
Fluidos y sólidos cuánticos fuertamente correlacionados (FIS2011-25275)
GRUP DE SIMULACIO PER ORDINADOR EN MATERIA CONDENSADA
Repositori
http://hdl.handle.net/2117/26519 Obrir en finestra nova
URL
http://iopscience.iop.org/1742-6596/529/1/012009/pdf/1742-6596_529_1_012009.pdf Obrir en finestra nova
Resum
We present a theoretical study of the dynamic structure function of a resonantly interacting two-component Fermi gas at zero temperature. Our approach is based on dynamic many-body theory able to describe excitations in strongly correlated Fermi systems. The fixed-node diffusion Monte Carlo method is used to produce the ground-state correlation functions which are used as an input for the excitation theory. Our approach reproduces recent Bragg scattering data in both the density and the spin cha...
Citació
Astrakharchik, G. [et al.]. Dynamic structure function of a cold Fermi gas at unitarity. "Journal of physics: conference series", 14 Agost 2014, vol. 529, núm. 1.
Paraules clau
Diffusion Monte Carlo method, Dynamic response, Dynamic structure, Electron gas, Excitation theory, Fermions, Ground-state correlation, Many-body theory, Monte Carlo methods, Theoretical study, Two-component fermi gas, Zero temperatures
Grup de recerca
SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity

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