Phase-Tunable Josephson Thermal Router

Josephson junctions with tunable current-phase relation

A. Lipman,1 R. G. Mints,1 R. Kleiner,2 D. Koelle,2 and E. Goldobin2,* 1The Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel 2Physikalisches Institut and Center for Collective Quantum Phenomena in LISA+, Universität Tübingen, Auf der Morgenstelle 14, D-72076 Tübingen, Germany (Received 29 September 2014; revised manuscript received 22 Octob...

Proximity nanovalve with large phase-tunable thermal conductance

An 8x8 Monolithic Tunable Optical Router (MOTOR) Chip in InP

We demonstrate 10 Gbps error free operation through multiple ports of an InP monolithic tunable optical router consisting of eight input wavelength converters and an 8x8 passive arrayed-waveguide grating router.

Thermal Activation of Superconducting Josephson Junctions

Superconducting quantum circuits (SQCs) are being explored as model systems for scalable quantum computing architectures. Josephson junctions are extensively used in superconducting quantum interference devices (SQUIDs) and in persistent-current qubit systems. Noise excitations, however, have a critical influence on their dynamics. Thus, the primary focus of this research was to investigate the...

Microwave-induced thermal escape in Josephson junctions.

We investigate, by experiments and numerical simulations, thermal activation processes of Josephson tunnel junctions in the presence of microwave radiation. When the applied signal resonates with the Josephson plasma frequency oscillations, the switching current may become multivalued in a temperature range far exceeding the classical to quantum crossover temperature. Plots of the switching cur...