Belzig, Wolfgang

Lade...
Profilbild
E-Mail-Adresse
Geburtsdatum
Forschungsvorhaben
Organisationseinheiten
Berufsbeschreibung
Nachname
Belzig
Vorname
Wolfgang
Name
Weiterer Name

Suchergebnisse Publikationen

Gerade angezeigt 1 - 1 von 1
Vorschaubild nicht verfügbar
Veröffentlichung

Ground-state quantum geometry in superconductor–quantum dot chains

2021, Klees, Raffael L., Cuevas, Juan Carlos, Belzig, Wolfgang, Rastelli, Gianluca

Multiterminal Josephson junctions constitute engineered topological systems in arbitrary synthetic dimensions defined by the superconducting phases. Microwave spectroscopy enables the measurement of the quantum geometric tensor, a fundamental quantity describing both the quantum geometry and the topology of the emergent Andreev bound states in a unified manner. In this work we propose an experimentally feasible multiterminal setup of N quantum dots connected to N + 1 superconducting leads to study nontrivial topology in terms of the many-body Chern number of the ground state. Moreover, we generalize the microwave spectroscopy scheme to the multiband case and show that the elements of the quantum geometric tensor of the noninteracting ground state can be experimentally accessed from the measurable oscillator strengths at low temperature.