Tuning a material to the cusp between two distinct ground states can produce physical
properties that are unlike those in either of the neighbouring phases. Advances in the …

We show that the numerical renormalization group is a viable multi-band impurity solver for
dynamical mean-field theory (DMFT), offering unprecedented real-frequency spectral …

Quantum phase transitions (QPTs) are ubiquitous in strongly correlated materials. However,
the microscopic complexity of these systems impedes the quantitative understanding of …

Fractional entropy is a signature of nonlocal degrees of freedom, such as Majorana zero
modes or more exotic non-Abelian anyons. Although direct experimental measurements …

The time-evolving matrix product operators (TEMPO) method, which makes full use of the
Feynman-Vernon influence functional, is the state-of-the-art tensor network method for …

The crossover from fluctuating atomic constituents to a collective state as one lowers
temperature or energy is at the heart of the dynamical mean-field theory description of the …

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We compute the spectral functions for the two-site dynamical cluster theory and for the two-
orbital dynamical mean-field theory in the density-matrix renormalization group (DMRG) …

The localization-delocalization transition is at the heart of strong correlation physics.
Recently, there is great interest in multiorbital systems where this transition can be restricted …

An emergent and promising tensor-network-based impurity solver is to represent the
Feynman-Vernon influence functional as a matrix product state, where the bath is integrated …