152 citations · 243 across the 8 of their papers we have counts for
8 papers
A Mobile Impurity in the Kitaev Chain: Phase Diagram and Signatures of Topology
A. V. Sadovnikov, M. S. Bahovadinov, A. N. Rubtsov +1
We study the physics of a mobile impurity immersed in a topological superconductor. We discuss the system's phase diagram obtained with exact diagonalization. We argue that th…
Dynamical Quantum Phase Transition Without An Order Parameter
O. N. Kuliashov, A. A. Markov, A. N. Rubtsov
Short-time dynamics of many-body systems may exhibit non-analytical behavior of the systems' properties at particular times, thus dubbed dynamical quantum phase transition. Simulat…
Cracking the Quantum Advantage threshold for Gaussian Boson Sampling
A. S. Popova, A. N. Rubtsov
Scientists in quantum technology aspire to quantum advantage: a computational result unattainable with classical computers. Gaussian boson sampling experiment has been already clai…
Accessing thermodynamics from dynamical cluster-embedding approaches
Gang Li, Werner Hanke, Alexei N. Rubtsov +2
Dynamical quantum-cluster approaches, such as different cluster extensions of the dynamical mean-field theory (cluster DMFT) or the variational cluster approximation (VCA), combine…
Superperturbation solver for quantum impurity models
Hartmut Hafermann, Christoph Jung, Sergey Brener +3
We present a very efficient solver for the general Anderson impurity problem. It is based on the perturbation around a solution obtained from exact diagonalization using a small nu…
Enhanced Crystal Field Splitting and Orbital Selective Coherence by Strong Correlations in V_2O_3
A. I. Poteryaev, J. M. Tomczak, S. Biermann +5
We present a study of the paramagnetic metallic and insulating phases of vanadium sesquioxide by means of the th order muffin-tin orbital implementation of density functional th…