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Hidden Spin-Supercurrent Counterflow in Conventional Superconductors
Johanne Bratland Tjernshaugen, Jacob Linder
Resistive spin currents conventionally vary in space through spin relaxation or torque, which removes angular momentum from the transported spin. We here demonstrate a qualitativel…
Coherent control of spinmons
Johanne Bratland Tjernshaugen, Florinda Viñas Boström, Jeroen Danon +3
In this work, we explore a hybrid qubit device where quantum information is encoded by quantum states of a transmon entangled with the spin of a trapped Andreev quasiparticle. We t…
Designing lattice spin models and magnon gaps with supercurrents
Johanne Bratland Tjernshaugen, Martin Tang Bruland, Jacob Linder
Electric control over magnetic interactions at the level of individual spins is relevant for a variety of quantum applications, such as qubits, memory and sensor functionality. We…
Crossed Andreev reflection revealed by self-consistent Keldysh-Usadel formalism
Johanne Bratland Tjernshaugen, Morten Amundsen, Jacob Linder
Crossed Andreev reflection (CAR) is a process that creates entanglement between spatially separated electrons and holes. Such entangled pairs have potential applications in quantum…