Superconducting devices articles from across Nature Portfolio

High-T_c superconducting nanowire detectors can detect single photons of telecom wavelengths at a temperature of 25 K and may enable applications in quantum sensing and quantum information processing.

‘Squeezing’ of light can be used to alter the distribution of quantum noise to benefit quantum sensing and other applications. An improved design for a microwave photon squeezer provides high performance over a large bandwidth.

The magnetic flux in a superconducting loop can only change by discrete jumps called phase slips. The energy dissipated by an individual phase slip has now been detected thanks to advances in precision temperature measurements.

Superconducting nanowire single-photon detectors offer outstanding performance, but the development of large-format imaging arrays is challenging. A new approach based on sectioning a single nanowire enables an eightfold improvement of the spatial resolution and the realization of a 1,024-pixel imager.

Graphene Josephson junctions enable parametric amplification at the quantum noise limit with gate-tuneable working frequency.

A hybrid superconducting optoelectronic circuit could be used to develop spiking neuromorphic networks that operate at the single-quantum level.