The Path Integral for 1+1-dimensional QCD

We derive a path integral expression for the transition amplitude in 1+1-dimensional QCD starting from canonically quantized QCD. Gauge fixing after quantization leads to a formulation in terms of gauge invariant but curvilinear variables. Remainders of the curved space are Jacobians, an effective potential, and sign factors just as for the problem of a particle in a box. Based on this result we derive a Faddeev-Popov like expression for the transition amplitude avoiding standard infinities that are caused by integrations over gauge equivalent configurations.Comment: 16 pages, LaTeX, 3 PostScript figures, uses epsf.st

Redesigning Literacy: Our Story

This manuscript details efforts to redesign a graduate literacy program guided by two, full-time faculty members to better meet candidates’ needs in an online learning environment supported with relevant and current curricula. Through professional literature, intentional curriculum, and authentic field experiences, program coursework is closely linked, easily allowing candidates to see and experience relationships across course content, better aligning with K-12 instructional practices. As a result of candidates’ completion of this program, they are steeped in best literacy practices and interventions, which equip them to celebrate their autonomy in philosophical beliefs as it relates to their identity as a literacy professional and leader

Picosecond time-resolved pure-rotational coherent anti-Stokes Raman spectroscopy for N-2 thermometry

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=ol-34-23-3755. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.Peer reviewedPublisher PD

Proposal for manipulating and detecting spin and orbital states of trapped electrons on helium using cavity quantum electrodynamics

We propose to couple an on-chip high finesse superconducting cavity to the lateral-motion and spin state of a single electron trapped on the surface of superfluid helium. We estimate the motional coherence times to exceed 15 microseconds, while energy will be coherently exchanged with the cavity photons in less than 10 nanoseconds for charge states and faster than 1 microsecond for spin states, making the system attractive for quantum information processing and cavity quantum electrodynamics experiments. Strong interaction with cavity photons will provide the means for both nondestructive readout and coupling of distant electrons.Comment: 4 pages, 3 figures, supplemental material

Through the doors of the wardrobe: A qualitative case study of a short-term study abroad program inspired by the C.S. Lewis Trail in Ireland

This qualitative case study explores experiences of U.S. American undergraduate students who participated in a short-term study abroad program to the Republic of Ireland and Northern Ireland. The program focused on psychological perspectives of childhood and play including restorative benefits of spending time in nature. Additional features of the program included using a children’s novel to connect class content and travels as well as prioritizing outdoor experiences. Students shared reflections on their experiences through digital storytelling projects and interviews. Analysis of data resulted in identification of five themes and researcher assertions. The study is framed in relation to literature contrasting short-term and long-term study abroad and the use of reflective practices including digital storytelling in study abroad

Effect of nonequilibrium phonons on hot-electron spin relaxation in n-type GaAs quantum wells

We have studied the effect of nonequilibrium longitudinal optical phonons on hot-electron spin relaxation in $n$-type GaAs quantum wells. The longitudinal optical phonons, due to the finite relaxation rate, are driven to nonequilibrium states by electrons under an in-plane electric field. The nonequilibrium phonons then in turn influence the electron spin relaxation properties via modifying the electron heating and drifting. The spin relaxation time is elongated due to the enhanced electron heating and thus the electron-phonon scattering in the presence of nonequilibrium phonons. The frequency of spin precession, which is roughly proportional to the electron drift velocity, can be either increased (at low electric field and/or high lattice temperature) or decreased (at high electric field and/or low lattice temperature). The nonequilibrium phonon effect is more pronounced when the electron density is high and the impurity density is low.Comment: 6 pages, 3 figure