179 citations · 760 across the 28 of their papers we have counts for
11 papers · 1 filter
The structure of quasiparticles in a local Fermi liquid
I. Snyman
Conduction electrons interacting with a dynamic impurity can give rise to a local Fermi liquid. The latter has the same low energy spectrum as an ideal Fermi gas containing a stati…
Simulating realistic screening clouds around quantum impurities: role of spatial anisotropy and disorder
Maxime Debertolis, Izak Snyman, Serge Florens
Dynamical quantum impurities in metals induce electronic correlations in real space that are difficult to simulate due to their multi-scale nature, so that only s-wave scattering i…
Efficient impurity-bath trial states from superposed Slater determinants
Izak Snyman, Serge Florens
The representation of ground states of fermionic quantum impurity problems as superpositions of Gaussian states has recently been given a rigorous mathematical foundation. [S. Brav…
Few-body nature of Kondo correlated ground states
Maxime Debertolis, Serge Florens, Izak Snyman
The quenching of degenerate impurity states in metals generally induces a long-range correlated quantum state known as the Kondo screening cloud. While a macroscopic number of part…
Ground state overlap knows about ultraviolet dynamics: results for the Kondo model
C. D. Pelwan, I. Snyman
We consider a quantum quench from the strongly correlated ground state of the Kondo model to a Fermi sea. We calculate the overlap between the ground states before and after the qu…
Microscopic bosonization of band structures: X-ray processes beyond the Fermi edge
Izak Snyman, Serge Florens
Bosonization provides a powerful analytical framework to deal with one-dimensional strongly interacting fermion systems, which makes it a cornerstone in quantum many-body theory. Y…