Mentor Social Capital, Individual Agency and Working-class Student Learning Outcomes: Revisiting the Structure/Agency Dialectic

This investigation explores factors that contributed to the disparate learning identities of two white baby-boomer brothers from the same working-class family. The research, part of a broader phenomenological study into the influences of working-class masculinities and schooling offers an insight into the individual family members’ differential communities of practice that over time had the potential to affect each brother’s accumulation and utilization of specific forms of social capital. The research challenges conventional thinking regarding the role families play in reproducing educational inequality because it recognizes that an individual’s responses to multiple experiences both within and outside the family, rather than family influence alone, are the best means of understanding certain social effects on a student’s formal schooling (Goldthorpe, 1983; Phelan, Davidson and Cao, 1991)

Quantum thermometry using the ac Stark shift within the Rabi model

This work was supported by the EPSRC, the National Research Foundation and Ministry of Education, Singapore, and the Royal Society.A quantum two-level system coupled to a harmonic oscillator represents a ubiquitous physical system. New experiments in circuit QED and nanoelectromechanical systems (NEMS) achieve unprecedented coupling strength at large detuning between qubit and oscillator, thus requiring a theoretical treatment beyond the Jaynes-Cummings model. Here we present a new method for describing the qubit dynamics in this regime, based on an oscillator correlation function expansion of a non-Markovian master equation in the polaron frame. Our technique yields a new numerical method as well as a succinct approximate expression for the qubit dynamics. These expressions are valid in the experimentally interesting regime of strong coupling at low temperature. We obtain a new expression for the ac Stark shift and show that this enables practical and precise qubit thermometry of an oscillator.Peer reviewe

Supreme Court\u27s Clarification of the Effect of Mitigating Measures in Disability Determinations Muddies Disabilities Waters: Sutton v. United Airlines, Inc.

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EC82-1738 Tree Planting Guide

Site Preparation Proper site preparation is essential to your tree planting operation, and varies with the different climates and soil types. Chemical Control: On sandy soils, rough terrain, or other highly erodible sites, tillage is not recommended. Chemical weed and/or grass killers may be applied to the site in the fall or before planting in the spring. Summer Fallow: This practice is recommended on heavy soil in western Nebraska to conserve soil moisture. This may be accomplished with the aid of occasional disking, subsurface tillage, or chemicals to control weeds. Fall Tillage: In the eastern areas of the state fall plowing is recommended for grassland sites. Cropland may need no fall tillage. All sites should then be disked before spring planting

Efficient real-time path integrals for non-Markovian spin-boson models

Funders: Strathearn - EPSRC, ID: EP/L505079/1, Lovett - EPSRC, ID: EP/K025562/1, Kirton- EPSRC, ID: EP/M010910/1Strong coupling between a system and its environment leads to the emergence of non-Markovian dynamics, which cannot be described by a time-local master equation. One way to capture such dynamics is to use numerical real-time path integrals, where assuming a finite bath memory time enables manageable simulation scaling. However, by comparing to the exactly soluble independent boson model, we show that the presence of transient negative decay rates in the exact dynamics can result in simulations with unphysical exponential growth of density matrix elements when the finite memory approximation is used. We therefore reformulate this approximation in such a way that the exact dynamics are reproduced identically and then apply our new method to the spin-boson model with superohmic environmental coupling, commonly used to model phonon environments, but which cannot be solved exactly. Our new method allows us to easily access parameter regimes where we find revivals in population dynamics which are due to non-Markovian backflow of information from the bath to the system.Publisher PDFPeer reviewe