Design tradeoffs for a Multispectral Linear Array (MLA) instrument

The heart of the multispectral linear array (MLA) design problem is to develop an instrument concept which concurrently provides a wide field-of-view with high resolution, spectral separation with precise band-to band registration, and excellent radiometric accuracy. Often, these requirements have conflicting design implications which can only be resolved by careful tradeoffs that consider performance, cost, fabrication feasibility and development risk. The key design tradeoffs for an MLA instrument are addressed, and elements of a baseline instrument concept are presented

The Inductive Single-Electron Transistor (L-SET)

We demonstrate a sensitive method of charge detection based on radio-frequency readout of the Josephson inductance of a superconducting single-electron transistor. Charge sensitivity $1.4 \times 10^{-4}e/\sqrt{Hz}$, limited by preamplifier, is achieved in an operation mode which takes advantage of the nonlinearity of the Josephson potential. Owing to reactive readout, our setup has more than two orders of magnitude lower dissipation than the existing method of radio-frequency electrometry. With an optimized sample, we expect uncoupled energy sensitivity below $\hbar$ in the same experimental scheme.Comment: 10 page

Quantum capacitive phase detector

We discuss how a single Cooper-pair transistor may be used to detect the superconducting phase difference by using the phase dependence of the input capacitance from gate to the ground. The proposed device has a low power dissipation because its operation is in principle free from quasiparticle generation. According to the sensitivity estimates the device may be used for efficient qubit readout in a galvanically isolated and symmetrized circuit.Comment: 5 pages, published for

Charge sensitivity of the Inductive Single-Electron Transistor

We calculate the charge sensitivity of a recently demonstrated device where the Josephson inductance of a single Cooper-pair transistor is measured. We find that the intrinsic limit to detector performance is set by oscillator quantum noise. Sensitivity better than $10^{-6}$e$/\sqrt{\mathrm{Hz}}$ is possible with a high $Q$-value $\sim 10^3$, or using a SQUID amplifier. The model is compared to experiment, where charge sensitivity $3 \times 10^{-5}$e$/\sqrt{\mathrm{Hz}}$ and bandwidth 100 MHz are achieved.Comment: 3 page

STRATEGY AS PRACTICE: SEEING THE PRACTICE OF MATERIAL DEPLOYMENT THROUGH AFFORDANCE LENSES

The objective of this research was to investigate sociomaterial aspects of affordances regarding the practices in the strategy work. The materials have been studied on and off for a while and traditionally this research has had its roots in resource-based views. The strategy-as-practice stream has benefited the management research by giving importance on what strategists and practitioners do in practice. The findings of the empirical research showed evidence for abundant contemporary methods in the application of the technologies and programs before and after the meeting. The paper managed to include two distinctive datasets for the analysis. The meeting practices showed how the contemporarily strategic meetings are conducted both virtually and face-to-face. The data analysis finds evidence that the practitioners are tolerant to the certain program and material related inefficiencies and side-effects although their task as a strategist and practitioner relate to finding the solution to these issues. The industrial design directors (the Cluster 1) discussed how they convert intangibles to tangible outcomes through creativity, use of methods and tools, and especially communicate with visual means. The middle-management informants (the Cluster 2) were involved to follow the strategic agenda, the policies related to the use of selected technologies and take action related to a distinctive set of social practices in a global company. The findings show how one large organization utilize telecommunication as an important enabler in the praxis. As a managerial implication, the paper proposes discussions on the key technological instruments in the praxis to better justify current routines: the constraints limit the efficient practice. The phenomena of postponing the chance could be explained by dwelling until the strategy emerges

Book Review: Data Feminism

Book review of: Data Feminism by Catherine D\u27Ignazio and Lauren F. Klein, The MIT Press (2020). Data Feminism combines intersectional feminism and critical data studies to invite the reader to consider: “How can we use data to remake the world?” As non-profit organizations with a mandate to provide equitable access to non-neutral information and services, libraries and library workers are uniquely positioned to advance the principles laid out in Data Feminism