Light–matter interaction drives many systems, such as optoelectronic devices like light-
emitting diodes and solar cells, biological structures like photosystem II and potential future …

One of the most exciting areas of research in quantum condensed matter physics is the push
to create topologically protected qubits using non-Abelian anyons. The focus of these efforts …

Current flow in electronic devices can be asymmetric with bias direction, a phenomenon
underlying the utility of diodes and known as non-reciprocal charge transport. The promise …

The ac Josephson effect predicted in 1962 and observed experimentally in 1963 as
quantized 'voltage steps'(the Shapiro steps) from photon-assisted tunnelling of Cooper pairs …

Light–matter coupling allows control and engineering of complex quantum states. Here we
investigate a hybrid superconducting–semiconducting Josephson junction subject to …

Tunnelling across superconducting junctions proceeds by a rich variety of processes, which
transfer single electrons, Cooper pairs or even larger numbers of electrons by multiple …

Electric control of spins has been a longstanding goal in the field of solid state physics due
to the potential for increased efficiency in information processing. This efficiency can be …

In the last decade, detecting spin dynamics at the atomic scale has been enabled by
combining techniques such as electron spin resonance (ESR) or pump–probe spectroscopy …

Magnetic impurities on superconductors lead to bound states within the superconducting
gap, so called Yu-Shiba-Rusinov (YSR) states. They are parity protected, which enhances …

Coherence and tunneling play central roles in quantum phenomena. In a tunneling event,
the time that a particle spends inside the barrier has been fiercely debated. This problem …