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- Leonid Pourovskii, Philipp Hansmann, Michel Ferrero, Antoine Georges
- Physical review letters
- 2014

We show that the heavy-fermion compound CeCu2Si2 undergoes a transition between two regimes dominated by different crystal-field states. At low pressure P and low temperature T the Ce 4f electron resides in the atomic crystal-field ground state, while at high P or T, the electron occupancy and spectral weight is transferred to an excited crystal-field level… (More)

Michel Ferrero,1,2 Pablo S. Cornaglia,1,3 Lorenzo De Leo,1 Olivier Parcollet,2 Gabriel Kotliar,4 and Antoine Georges1 1Centre de Physique Théorique, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France 2Institut de Physique Théorique, CEA, IPhT, CNRS, URA 2306, 91191 Gif-sur-Yvette, France 3Centro Atómico Bariloche and Instituto Balseiro, CNEA, CONICET,… (More)

- J. P. F. LeBlanc, A. E. Antipov, +22 authors Emanuel Gull
- 2015

J. P. F. LeBlanc, Andrey E. Antipov, Federico Becca, Ireneusz W. Bulik, Garnet Kin-Lic Chan, Chia-Min Chung, Youjin Deng, Michel Ferrero, Thomas M. Henderson, Carlos A. Jiménez-Hoyos, E. Kozik, Xuan-Wen Liu, Andrew J. Millis, N. V. Prokof’ev, Mingpu Qin, Gustavo E. Scuseria, Hao Shi, B. V. Svistunov, Luca F. Tocchio, I. S. Tupitsyn, Steven R. White, Shiwei… (More)

- Markus Aichhorn, Leonid Pourovskii, +9 authors Olivier Parcollet
- Computer Physics Communications
- 2016

We present the TRIQS/DFTTools package, an application based on the TRIQS library that connects this toolbox to realistic materials calculations based on density functional theory (DFT). In particular, TRIQS/DFTTools together with TRIQS allows an efficient implementation of DFT plus dynamical mean-field theory (DMFT) calculations. It supplies tools and… (More)

- Olivier Parcollet, Michel Ferrero, +4 authors Priyanka Seth
- Computer Physics Communications
- 2015

- Tung-Lam Dao, Michel Ferrero, Antoine Georges, Massimo Capone, Olivier Parcollet
- Physical review letters
- 2008

We study a two-component Fermi system with attractive interactions and different populations of the two species in a cubic lattice. For an intermediate coupling, we find a uniformly polarized superfluid which is stable down to very low temperatures. The momentum distribution of this phase closely resembles that of the Sarma phase, characterized by two Fermi… (More)

- Lorenzo De Leo, Corinna Kollath, Antoine Georges, Michel Ferrero, Olivier Parcollet
- Physical review letters
- 2008

We perform a theoretical study of a fermionic gas with two hyperfine states confined to an optical lattice. We derive a generic state diagram as a function of interaction strength, particle number, and confining potential. We discuss the central density, the double occupancy, and their derivatives as probes for the Mott state, connecting our findings to the… (More)

- Evgeny Kozik, Michel Ferrero, Antoine Georges
- Physical review letters
- 2015

The Luttinger-Ward functional Φ[G], which expresses the thermodynamic grand potential in terms of the interacting single-particle Green's function G, is found to be ill defined for fermionic models with the Hubbard on-site interaction. In particular, we show that the self-energy Σ[G]∝δΦ[G]/δG is not a single-valued functional of G: in addition to the… (More)

- Michel Ferrero
- 2005

Though up to now there is no experimental indication why quantum evolution may be nonlinear, it has been traditionally considered both as a possible way out to the measurement problem[1] or as matter of theoretical considerations to be contrasted with high-finesse experiments[2]. One of the most remarkable consequences of these considerations[3] was the… (More)

- Xiaoyu Deng, Jernej Mravlje, Rok Zitko, Michel Ferrero, G. Kotliar, Antoine Georges
- Physical review letters
- 2013

We investigate transport in strongly correlated metals. Within dynamical mean-field theory, we calculate the resistivity, thermopower, optical conductivity and thermodynamic properties of a hole-doped Mott insulator. Two well-separated temperature scales are identified: T(FL) below which Landau Fermi liquid behavior applies, and T(MIR) above which the… (More)