Alien Registration- Mccauslin, Bayfield (Millinocket, Penobscot County)

https://digitalmaine.com/alien_docs/7941/thumbnail.jp

Local phase space control and interplay of classical and quantum effects in dissociation of a driven Morse oscillator

This work explores the possibility of controlling the dissociation of a monochromatically driven one-dimensional Morse oscillator by recreating barriers, in the form of invariant tori with irrational winding ratios, at specific locations in the phase space. The control algorithm proposed by Huang {\it et al.} (Phys. Rev. A {\bf 74}, 053408 (2006)) is used to obtain an analytic expression for the control field. We show that the control term, approximated as an additional weaker field, is efficient in recreating the desired tori and suppresses the classical as well as the quantum dissociation. However, in the case when the field frequency is tuned close to a two-photon resonance the local barriers are not effective in suppressing the dissociation. We establish that in the on-resonant case quantum dissociation primarily occurs via resonance-assisted tunneling and controlling the quantum dynamics requires a local perturbation of the specific nonlinear resonance in the underlying phase space.Comment: 12 pages, 6 figures (reduced quality), submitted to Phys. Rev.

Tunable coupling scheme for flux qubits at the optimal point

We discuss a practical design for tunably coupling a pair of flux qubits via the quantum inductance of a third high-frequency qubit. The design is particularly well suited for realizing a recently proposed microwave-induced parametric coupling scheme. This is attractive because the qubits can always remain at their optimal points. Furthermore, we will show that the resulting coupling also has an optimal point where it is insensitive to low-frequency flux noise. This is an important feature for the coherence of coupled qubits. The presented scheme is an experimentally realistic way of carrying out two-qubit gates and should be easily extended to multiqubit systems.Comment: 8 pages, 6 figures, minor change

Femtosecond transparency in the extreme ultraviolet

Electromagnetically induced transparency-like behavior in the extreme ultraviolet (XUV) is studied theoretically, including the effect of intense 800 nm laser dressing of He 2s2p (1Po) and 2p^2 (1Se) autoionizing states. We present an ab initio solution of the time-dependent Schrodinger equation (TDSE) in an LS-coupling configuration interaction basis set. The method enables a rigorous treatment of optical field ionization of these coupled autoionizing states into the N = 2 continuum in addition to N = 1. Our calculated transient absorption spectra show encouraging agreement with experiment.Comment: 25 pages, 7 figures, 1 tabl

Optical RKKY Interaction between Charged Semiconductor Quantum Dots

We show how a spin interaction between electrons localized in neighboring quantum dots can be induced and controlled optically. The coupling is generated via virtual excitation of delocalized excitons and provides an efficient coherent control of the spins. This quantum manipulation can be realized in the adiabatic limit and is robust against decoherence by spontaneous emission. Applications to the realization of quantum gates, scalable quantum computers, and to the control of magnetization in an array of charged dots are proposed.Comment: 4 pages, 2 figure

Mobilising Manchester through the Manchester International Festival: Whose city, whose culture? An exploration of the representation of cities through cultural events

In times of ongoing austerity, local authorities are under increasing pressure to enforce a wide range of budget cuts. Culture is one area often under threat yet, despite this, there are areas of the UK that continue to support the kind of large-scale culture-led regeneration that has been prominent since the late 20th Century. Despite the multi-faceted benefits that culture can have for cities, urban regeneration literature has a tendency to focus on evaluative studies based on outcome rather than process, and studies of cultural policy focus heavily upon economic imperatives. In response to this, the work presented here aims to examine the practices involved within the production and promotion of cultural events. Through exploring the motivations of those involved in these processes and incorporating an understanding of culture’s diverse nature an understanding of the value placed upon culture is developed. Using a mixed methodology incorporating qualitative methods of observation, interviewing and document analysis, this thesis uses a grounding in cultural studies to explore the way one recurring cultural event illuminates processes of culture-led regeneration within a contemporary urban context. Themes of capital and power are drawn on throughout in order to examine the everyday practices that lead to the dominance of particular representations of the city through its culture. This approach allows for the problematisation of processes of culture-led regeneration, and the exploration of themes of city identity within this context. The research places culture as a key factor in the (re)production of city identity, highlighting how those in positions of relative power play a distinct role in the development and articulation of this identity. The ethnographic methodology adds weight to the field of culture-led regeneration by exploring cultural value through everyday practices, offering a different angle to both academic and policy-driven research in this area

CLASS Cymru: Developing an online resource to support care-experienced students. Executive Summary

Emerging from research within CASCADE looking at access to, and success in Higher Education (HE) for care-experienced students in Wales, CLASS Cymru is a website comprising of key information designed to help support care-experienced young people in Wales as they progress to university. With clear, simple guidance, this is a one-stop-shop for both professionals and young people themselves to find relevant guidance and information to effectively support this key period of transition

"More of a kind of patchy transition into university as opposed to the kind of smooth story that people expect." Transitions to higher education for care-experienced students

Despite an increased focus on supporting under-represented groups into Higher Education (HE), care-experienced young people are still significantly less likely to transition into HE than their peers who have not had this experience. With rates of children taken into care increasing in Wales, there is value in understanding how best to support care-experienced young people with educational transitions. Based on pan-Wales research into access to, and success in, HE for care-experienced young people, this paper presents the experiences of 13 young people in Wales regarding educational transitions and the support they have – or have not – had in their transitions to university. Recommendations are made for improving transition support and for creating better signposting to existing support