Parker B. Wagnild Portrait in Schmucker Hall

A painting of Parker B. Wagnild hangs outside of the College Choir rehearsal room in Schmucker hall. Only a plaque bearing his name is underneath the painting, even the artist remains unknown. The painting is quite small in comparison to what the man in the painting has done for Gettysburg College. Though perhaps the placement of the painting means more than its size, for it located at a central spot in the music department building, and it is right outside of the College Choir rehearsal room. This places Wagnild at the heart of both the department and the choir, both of which he founded and devoted his career to throughout his years at Gettysburg College. Thus the placement of the painting is quite fitting. It’s a shame that many might pass by this painting and not know the story of the person depicted, for his influence is still a part of the choir and music department today. Wagnild built the foundation of Gettysburg College’s musical reputation. [excerpt] Course Information: Course Title: HIST 300: Historical Method Academic Term: Spring 2006 Course Instructor: Dr. Michael J. Birkner \u2772 Hidden in Plain Sight is a collection of student papers on objects that are hidden in plain sight around the Gettysburg College campus. Topics range from the Glatfelter Hall gargoyles to the statue of Eisenhower and from historical markers to athletic accomplishments. You can download the paper in pdf format and click View Photo to see the image in greater detail.https://cupola.gettysburg.edu/hiddenpapers/1004/thumbnail.jp

Dynamical and Steady State Properties of a Bose-Hubbard Chain with Bond-Dissipation: A Study based on Matrix Product Operators

We study a dissipative Bose-Hubbard chain subject to an engineered bath using a superoperator approach based on matrix product operators. The dissipation is engineered to stabilize a BEC condensate wave function in its steady state. We then characterize the steady state emerging from the interplay between incompatible Hamiltonian and dissipative dynamics. While it is expected that interactions lead to this competition, even the kinetic energy in an open boundary condition setup competes with the dissipation, leading to a non-trivial steady state. We also present results for the transient dynamics and probe the relaxation time revealing the closing of the dissipative gap in the thermodynamic limit.Comment: 9 pages, 13 figure

"Light-cone" dynamics after quantum quenches in spin chains

Signal propagation in the non equilibirum evolution after quantum quenches has recently attracted much experimental and theoretical interest. A key question arising in this context is what principles, and which of the properties of the quench, determine the characteristic propagation velocity. Here we investigate such issues for a class of quench protocols in one of the central paradigms of interacting many-particle quantum systems, the spin-1/2 Heisenberg XXZ chain. We consider quenches from a variety of initial thermal density matrices to the same final Hamiltonian using matrix product state methods. The spreading velocities are observed to vary substantially with the initial density matrix. However, we achieve a striking data collapse when the spreading velocity is considered to be a function of the excess energy. Using the fact that the XXZ chain is integrable, we present an explanation of the observed velocities in terms of "excitations" in an appropriately defined generalized Gibbs ensemble.Comment: 4+pages, 5 figures, supplementary materia

Thermal vs. Entanglement Entropy: A Measurement Protocol for Fermionic Atoms with a Quantum Gas Microscope

We show how to measure the order-two Renyi entropy of many-body states of spinful fermionic atoms in an optical lattice in equilibrium and non-equilibrium situations. The proposed scheme relies on the possibility to produce and couple two copies of the state under investigation, and to measure the occupation number in a site- and spin-resolved manner, e.g. with a quantum gas microscope. Such a protocol opens the possibility to measure entanglement and test a number of theoretical predictions, such as area laws and their corrections. As an illustration we discuss the interplay between thermal and entanglement entropy for a one dimensional Fermi-Hubbard model at finite temperature, and its possible measurement in an experiment using the present scheme

The Military Family, Warrior Masculinity, and Bureaucratic Harassment: Individual, Interactional, and Institutional Level Contributors to the Sexual Abuse of U.S. Service-Women

This dissertation examines the institutional, interactional, and individual-level contributors to sexual abuse of women in the U.S. military. Drawing on 41 in-depth interviews, I privilege service-women&rsquo;s own voices and experiences to show how they employ various strategies to avoid, mitigate, respond to, and sometimes confront sexual harassment in the gendered military institution. I show how women&rsquo;s status as outsiders in the military begins when their experiences do not align with the institution&rsquo;s promise of family. I then explore how women attempt inclusion through various masculinity displays, managing stigmatized feminine identities, and engaging in defensive othering against other women. These interactions occur against a masculinized organizational structure where spatial arrangements and institutional expectations of caregiving, trust, and loyalty reinforce women&rsquo;s sexual abuse vulnerability. I outline the tactics and consequences of workplace harassment that occur through administrative channels, a phenomenon I label bureaucratic harassment. I show how the manipulation of administrative rules and regulations is made possible by the interplay between a gendered and raced organizational climate and bureaucratic features such as discretion, hierarchy, and the blending of work and personal life. I argue that in an extremely gendered and masculine institution, that sexual harassment complicates service-women&rsquo;s military identities. To resolve this dilemma, I argue that many service-women downplay, excuse, or even participate in sexual harassment to protect their masculinity. I contrast this with showing how responses to harassment differ among service-women who have experienced sexual assault and service-women who have experienced combat. I argue that sexual harassment does not present an identity dilemma for these two groups of women, and therefore they confront harassment. Overall, I demonstrate how masculinity constrains responses to sexual harassment for most service-women, and also determines which service-women do confront harassment. Furthermore, I identify how social location (i.e., race, age, sexuality, military occupational specialty, and rank) shapes sexual abuse vulnerability and reporting, providing an intersectional analysis to the identity narratives and harassment experiences of U.S. service-women. Ultimately, this dissertation explores the power of masculinity in organizations and the identity struggles that women must navigate within the workplace. In doing so, this study contributes to the literature on feminist criminology, masculinity and femininity, and gender and organizations.</p