Separating spins by dwell time of electrons across a magnetic microstructure

Interacting Electrons and Localized Spins :

Separating microstructure noise from volatility∗

There are two variance components embedded in the returns constructed using high-frequency asset prices: the time-varying variance of the unobservable efficient returns that would prevail in a frictionless economy and the variance of the equally unobservable microstructure noise. Using sample moments of high-frequency return data recorded at different frequencies, we provide a simple and robust...

Dwell Time Refinement

The abstraction of a hybrid system by eliminating one or more of its continuous variables is in general too coarse. In this situation, dwell time refinement may be useful. The idea is to impose explicit constraints on the time that may resp. must be spent (or “dwelled”) between successive mode switches. We show how the required constraints can be inferred automatically (with acceptable cost). T...

Time-resolved magnetic sensing with electronic spins in diamond.

Quantum probes can measure time-varying fields with high sensitivity and spatial resolution, enabling the study of biological, material and physical phenomena at the nanometre scale. In particular, nitrogen-vacancy centres in diamond have recently emerged as promising sensors of magnetic and electric fields. Although coherent control techniques have measured the amplitude of constant or oscilla...

a comparative pragmatic analysis of the speech act of “disagreement” across english and persian

the speech act of disagreement has been one of the speech acts that has received the least attention in the field of pragmatics. this study investigates the ways power relations, social distance, formality of the context, gender, and language proficiency (for efl learners) influence disagreement and politeness strategies. the participants of the study were 200 male and female native persian s...