Entanglement in many-body systems

L Amico, R Fazio, A Osterloh, V Vedral - Reviews of modern physics, 2008 - APS
Recent interest in aspects common to quantum information and condensed matter has
prompted a flurry of activity at the border of these disciplines that were far distant until a few …

Interactions and thermoelectric effects in a parallel-coupled double quantum dot

MA Sierra, M Saiz-Bretín, F Domínguez-Adame… - Physical Review B, 2016 - APS
We investigate the nonequilibrium transport properties of a double quantum-dot system
connected in parallel to two leads, including intradot electron-electron interaction. In the …

Double-quantum-dot Andreev molecules: Phase diagrams and critical evaluation of effective models

P Zalom, K Wrześniewski, T Novotný… - arXiv preprint arXiv …, 2024 - arxiv.org
This work systematically investigates the phase diagram of a parallel double-quantum-dot
Andreev molecule, where the two quantum dots are coupled to a common superconducting …

Andreev transport through side-coupled double quantum dots

Y Tanaka, N Kawakami, A Oguri - Physical Review B—Condensed Matter and …, 2008 - APS
We study the transport through side-coupled double quantum dots, connected to normal and
superconducting (SC) leads with a T-shape configuration. We find, using the numerical …

Crossover between two different Kondo couplings in side-coupled double quantum dots

Y Tanaka, N Kawakami, A Oguri - Physical Review B—Condensed Matter and …, 2012 - APS
We study the Kondo effect in side-coupled double quantum dots with particular focus on the
crossover between two distinct singlet ground states, using the numerical renormalization …

Inducing spin correlations and entanglement in a double quantum dot through nonequilibrium transport

CA Büsser, F Heidrich-Meisner - Physical Review Letters, 2013 - APS
For a double quantum dot system in a parallel geometry, we demonstrate that by combining
the effects of a flux and driving an electrical current through the structure, the spin …

Two-impurity Kondo model with spin-orbit interactions

DF Mross, H Johannesson - Physical Review B—Condensed Matter and …, 2009 - APS
We study the two-impurity Kondo model (TIKM) in two dimensions with spin-orbit coupled
conduction electrons. In the first part of the paper we analyze how spin-orbit interactions of …

Spectral density of an interacting dot coupled indirectly to conducting leads

L Vaugier, AA Aligia, AM Lobos - Physical Review B—Condensed Matter and …, 2007 - APS
We study the spectral density of electrons ρ d σ (ω) in an interacting quantum dot (QD) with a
hybridization λ to a noninteracting QD, which, in turn, is coupled to a noninteracting …

Numerical renormalization group study of the Loschmidt echo in Kondo systems

T Ślusarski, K Wrześniewski, I Weymann - Scientific Reports, 2022 - nature.com
We study the dynamical properties of the one-channel and two-channel spin-1/2 Kondo
models after quenching in Hamiltonian variables. Eigen spectrum of the initial and final …

Entanglement switching via the Kondo effect in triple quantum dots

SB Tooski, BR Bułka, R Žitko, A Ramšak - The European Physical Journal …, 2014 - Springer
We consider a triple quantum dot system in a triangular geometry with one of the dots
connected to metallic leads. Using Wilson's numerical renormalization group method, we …