A nonlinear resonant circuit comprising a SQUID magnetometer and a shunting capacitor is studied as a readout scheme for a persistent-current qubit. The flux state of the qubit is detected as a change in the Josephson inductance of the SQUID magnetometer, which in turn mediates a shift in the resonant frequency of the readout circuit. The nonlinearity and resulting hysteresis in the resonant be...

The explosive growth in the healthcare and lifestyle application has fueled recent research efforts to increase both integration and adaptability in biosensor readout design. Potentiometric sensor is emerging as important sensing devices in the areas of biomedical applications since the pioneer work on pH sensor has been introduced (Bergveld, 1970). It has appreciable advantages over traditiona...

We have designed, fabricated and tested an XYaddressable readout architecture for superconducting flux qubits in an integrated circuit designed to enable adiabatic quantum optimization algorithms. The readout architecture for an N-qubit system comprises N hysteretic dc SQUIDs and N rf SQUID latches controlled with 2 √ N +2 wires. The latching elements are coupled to the qubits and provide excep...

In this paper, a new CMOS active pixel sensor (APS) of 128×128 resolution is proposed for high quantum efficiency. The presented CMOS image sensor can operate at the power supply of 3.3V, and use both a new pixel-shared structure and split-path readout direction. This new method has the advantage that the number of transistors in each pixel is reduced to increase the fill factor by enlarging th...

High fidelity single shot qubit state readout is essential for many quantum information processing protocols. In superconducting circuit, the usually determined by detecting dispersive frequency shift of a microwave cavity from either transmission or reflection. We demonstrate use constructive interference between transmitted and reflected signal to optimize readout, with which we find better r...

• Identification of the optimum technology and layout of the tracking detectors for the upgraded ATLAS ID and construction of a short-strip silicon detector (SSD) module with sufficient radiation hardness for the intermediate and outer tracking region in the upgraded ATLAS ID. • Evaluation of integrated circuit technologies for the readout of the upgraded ATLAS ID, in particular the evaluation ...

A current-mode image sensor architecture using a linear-logarithmic pixel in order to improve the dynamic range is presented. The pixel cell is based on a 3T active pixel structure with a PMOS readout transistor in the linear region of operation and a PMOS reset transistor that allows for a linear-logarithmic response. An intrascene dynamic range of 90dB is obtained with a pixel fill factor of ...