T. A. Costi

TL;DR: In the early 1970s, Wilson developed the concept of a fully nonperturbative renormalization group transformation as mentioned in this paper, which gave for the first time the full crossover from the high temperature phase of a free spin to the low-temperature phase of completely screened spin.

TL;DR: This work was able to directly measure the compressibility of the quantum gas in the trap using in situ imaging and independent control of external confinement and lattice depth, to demonstrate the potential to model interacting condensed-matter systems using ultracold fermionic atoms.

TL;DR: In this article, the transport coefficients of the Anderson model are calculated by extending Wilson's numerical renormalization group method to finite-temperature Green functions, and accurate results for the frequency and temperature dependence of the single-particle spectral densities and transport time tau ( omega, T) are obtained and used to extract the temperature dependence.

TL;DR: These findings demonstrate a mechanism of spin control in single-molecule devices and establish that they can serve as model systems for making precision tests of correlated-electron theories.

TL;DR: In this paper, the spectral function and self-energy for the Mott-Hubbard model on a Bethe lattice with infinite coordination number directly on the real-frequency axis were calculated.