Abstract: A device includes a converter configured to convert photons input from a photonic link into Cooper-pairs, a first superconductor, a second superconductor, a plurality of nanowires connected to the first superconductor and the second superconductor, and a gate array connected to the plurality of nanowires and configured to alter quantum states of ions within the plurality of nanowires.

Abstract: A tunable quantum qubit circuit comprising: a plurality of interconnected Josephson tunneling junctions sculpted in-situ on-chip, wherein each Josephson tunneling junction comprises a pair of high temperature superconductors separated by an active region having a controlled charge density; a capacitive-coupled control gate operatively coupled to the Josephson tunneling junctions and configured to simultaneously modulate energy levels of the Josephson tunneling junctions; and independent control gates operatively coupled to the Josephson tunneling junctions, wherein the independent control gates are reconfigurable on-the-fly by an operator.

Abstract: A tunable quantum qubit circuit comprising: a plurality of interconnected Josephson tunneling junctions sculpted in-situ on-chip, wherein each Josephson tunneling junction comprises a pair of high temperature superconductors separated by an active region having a controlled charge density; a capacitive-coupled control gate operatively coupled to the Josephson tunneling junctions and configured to simultaneously modulate energy levels of the Josephson tunneling junctions; and independent control gates operatively coupled to the Josephson tunneling junctions, wherein the independent control gates are reconfigurable on-the-fly by an operator.

Abstract: A process for constructing a superconducting Josephson-based nonvolatile quantum memory device comprising: sequentially depositing on a silicon substrate a thermal oxide buffer layer, a superconductor bottom-electrode thin film, and an oxide isolation layer; patterning an active window having dimensions smaller that 10 nanometers in the oxide isolation layer; then sequentially depositing a bottom tunnel oxide layer, a charge-trapping layer, a top cap, and a top superconductor electrode layer; defining an active region by dry etching down to the oxide isolation layer while protecting the active region from etch chemistry; depositing a device passivation layer; defining and patterning vias from a top of the device passivation layer to the superconductor bottom-electrode thin film and to the top superconductor electrode of the active region; and depositing metal interconnect into the vias.

Abstract: A system and method involve generating an electric field across a superconductor device having an ionic layer disposed between and separated from first and second superconductor layers by respective first and second barrier layers. The electric field may be generated by applying an input signal, such as a voltage, to the superconductor device while the device is in a superconducting state. The voltage may be below a threshold voltage for inducing ion transport within the ionic layer or may be above or below a threshold voltage for inducing ion transport from the ionic layer across an ionic layer/barrier layer interface. The ion transport may tune the potential profile and/or modulate the critical current of the superconductor device and may include quantum coherent ionic transport, Josephson tunneling, or resonant tunneling. The electric field generated across the superconductor device may alter the spin-states of the ions within the ionic layer.

Abstract: For optimising annual energy production in a wind turbine, the invention provides a method by which operation of the turbine in accordance with different pre-specified modes depending on the wind direction towards the turbine is enabled. The modes may include pitch and/or power control strategies. The invention further provides a control system for a wind turbine adapted to operate in accordance with the method, and a wind turbine with such a control system.

Abstract: For optimising annual energy production in a wind turbine, the invention provides a method by which operation of the turbine in accordance with different pre-specified modes depending on the wind direction towards the turbine is enabled. The modes may include pitch and/or power control strategies. The invention further provides a control system for a wind turbine adapted to operate in accordance with the method, and a wind turbine with such a control system.

Abstract: A tail block assembly for a carpet stretching apparatus comprises a tail block mounting structure, a displacement device engaging structure and a multi-axis swivel joint. The multi-axis swivel joint includes a first yoke structure fixedly attached to the displacement device engaging structure, a second yoke structure fixedly attached to the tail block mounting structure and a linkage member pivotably connected between the first yoke structure and the second yoke structure. The first yoke structure pivots about a first pivot axis of the linkage member and the second yoke structure pivot about a second pivot axis of the linkage member. The first pivot axis extends approximately perpendicularly through the second pivot axis.