71 citations · 154 across the 6 of their papers we have counts for
6 papers
Electrically controlled crossover between - and -Josephson effects through topologically-confined channels in silicene
Daniel Frombach, Sunghun Park, Alexander Schroer +1
We propose a tunable topological Josephson junction in silicene where electrostatic gates could switch between a trivial and a topological junction. These aspects are a consequence…
Signatures of nonlocal Cooper-pair transport and of a singlet-triplet transition in the critical current of a double-quantum-dot Josephson junction
B. Probst, F. Domínguez, A. Schroer +2
We study the critical Josephson current flowing through a double quantum dot weakly coupled to two superconducting leads. We use analytical as well as numerical methods to investig…
Valley-based Cooper Pair Splitting via Topologically Confined Channels in Bilayer Graphene
Alexander Schroer, Peter G. Silvestrov, Patrik Recher
Bilayer graphene hosts valley-chiral one dimensional modes at domain walls between regions of different interlayer potential or stacking order. When such a channel is brought into…
Detection of Nonlocal Spin Entanglement by Light Emission from a Superconducting p-n Junction
Alexander Schroer, Patrik Recher
We model a superconducting p-n junction in which the n- and the p-sides are contacted through two optical quantum dots (QDs), each embedded into a photonic nanocavity. Whenever a C…
Detection of spin entanglement via spin-charge separation in crossed Tomonaga-Luttinger liquids
Alexander Schroer, Bernd Braunecker, Alfredo Levy Yeyati +1
We investigate tunneling between two spinful Tomonaga-Luttinger liquids (TLLs) realized, e.g., as two crossed nanowires or quantum Hall edge states. When injecting into each TLL on…
Tuning the Ultrafast Spin Dynamics in Carrier-Density-Controlled Ferromagnets
Masakazu Matsubara, Alexander Schroer, Andreas Schmehl +7
Ultrafast strengthening or quenching of the ferromagnetic order of semiconducting Eu1-xGdxO was achieved by resonant photoexcitation. The modification of the magnetic order is esta…