Colloquium

Quantum physics puts a limit on how small the noise added by an amplifier can be. Limiting this extra noise, which causes unavoidable signal degradation, is an essential requirement for the measurement of weak electromagnetic signals in various areas of science and engineering. In particular, a nearly-quantum-limited microwave amplifier is a key tool for performing […]

There is an enormous interest in developing customized, domain-specific systems-on-a-chip.  Continued improvement in computing efficiency requires functional specialization of hardware designs. But designing complex chips is difficult.   This talk presents the Chipyard framework, an integrated SoC design, simulation, and implementation environment for specialized compute systems. Chipyard includes configurable, composable, open-source, generator-based IP blocks that can […]

Nudges are interventions promoting healthy behavior without forbidding options or significant incentives. As an example of a nudge, the Apple Watch encourages users to stand by delivering a notification if they have been sitting for the first 50 minutes of an hour. Based on 76 billion minutes of observational standing data from 160,000 subjects in […]