TY  - JOUR
AU  - Helmes, R.W.
AU  - Costi, T. A.
AU  - Rosch, A.
TI  - Mott transition of fermionic atoms in a three-dimensional optical trap
JO  - Physical review letters
VL  - 100
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-61213
SP  - 056403
PY  - 2008
N1  - Record converted from VDB: 12.11.2012
AB  - We study theoretically the Mott metal-insulator transition for a system of fermionic atoms confined in a three-dimensional optical lattice and a harmonic trap. We describe an inhomogeneous system of several thousand sites using an adaptation of dynamical mean-field theory solved efficiently with the numerical renormalization group method. Above a critical value of the on-site interaction, a Mott-insulating phase appears in the system. We investigate signatures of the Mott phase in the density profile and in time-of-flight experiments.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000253019600057
DO  - DOI:10.1103/PhysRevLett.100.056403
UR  - https://juser.fz-juelich.de/record/61213
ER  -