Nonlinear Interferometry via Fock State Projection

We use a photon-number resolving detector to monitor the photon number distribution of the output of an interferometer, as a function of phase delay. As inputs we use coherent states with mean photon number up to seven. The postselection of a specific Fock (photon-number) state effectively induces high-order optical non-linearities. Following a scheme by Bentley and Boyd [S.J. Bentley and R.W. Boyd, Optics Express 12, 5735 (2004)] we explore this effect to demonstrate interference patterns a factor of five smaller than the Rayleigh limit.Comment: 4 pages, 5 figure

2008 Annual Report for the Bentley Rare Book Room

2008 Annual Report for the Bentley Rare Book Room

Clerihews: A Personal History

It was many years ago that I first became acquainted with a form of light verse called a clerihew. At the time I was reading some poetry by W. H. Auden. Most of Auden\u27s poetry was serious, but some of it was light, and I especially liked the following:James WattWas the hard-boiled kind of ScotHe thought any dreamSheer waste of steam

Accounting History exhibits; Harry C. Bentley Collection at the Boston Public Library, May 15 through June 15, 1992

In honor of the 75th Anniversary of Bentley College, an exhibit of 40 books from The Harry C. Bentley Collection at the Boston Public Library (BPL) was held from May 15-June 15. The exhibit was coordinated by John Cathcart, archivist at Bentley College and Richard Vangermeersch, professor of accounting at the University of Rhode Island. They were joined by the coauthor of Harry C. Bentley\u27s two volume bibliography, Miss Ruth S. Leonard for a reception at the BPL on May 29. This exhibit was the first one from the Harry C. Bentley Collection housed at the library. In the photograph, the individuals are from left to right: unidentified, Richard Vangermeersch, John Cathcart, and Ruth Leonard

AASU Picks Up Two Wins At Bentley Invitational

AASU Picks Up Two Wins At Bentley Invitational. The Armstrong Atlantic volleyball squad opened action in the Bentley Invitational with two victories, extending its perfect start to the season by knocking off Bridgeport, 3-1, and host Bentley, 3-0. The Pirates are now 6-0 on the short campaign

Why a Particle Physicist is Interested in DNA Branch Migration

We describe an explicitly discrete model of the process of DNA branch migration. The model matches the existing data well, but we find that branch migration along long strands of DNA (N \simge 40~bp) is also well modeled by continuum diffusion. The discrete model is still useful for guiding future experiments.Comment: Talk presented at LATTICE96(theoretical developments); 3 pages, TeXsis w/ LAT96.txs (available from ftp://lifshitz.ph.utexas.edu/texsis/styles/LAT96.txs and will be a part of the next Elsevier.txs) and TXSdcol.te

Interview with Ruth S. Leonard

Ruth S. Leonard co-authored with Harry C. Bentley the Bibliography of Works on Accounting by American Authors: Vol. I, 1796-1900 in 1934 and Vol. II, 1901-1934 in 1935. These volumes were reprinted in 1969 by Augustus M. Kelley as one volume. While I was conducting research at Bentley College, John C. Cathcart, Archivist at the college, provided me some of Ruth Leonard\u27s notes on the Bibliography and a video-taped interview of her conducted by Mr. Cathcart and Professor Robinson Smith of Bentley College. Mr. Cathcart also arranged for me an interview with Ms. Leonard and prepared a video-tape of the interview. As the previous interview did not discuss Harry C. Bentley as an accounting historian, my questions of Ms. Leonard were oriented to that issue

Job Characteristics and the Form of Compensation

In this paper we introduce a way to systematically organize the choice between different forms of compensation based upon observable job characteristics. Secondly, we explore the determinants of compensation based upon questionnaire responses concerning job characteristics and methods of pay contained in the Quality of Employment Survey (QES), the National Longitudinal Survey of Youth (NLSY), the Panel Study of Income Dynamics (PSID), and the Current Population Survey. The0501n conclusion is that there is no single model of the employment relationship that can explain the variation in compensation form. We draw upon both agency and incomplete contract models to study the interplay between job characteristics and compensation. Specific results include a) the number of tasks seems to be associated with the use of incomplete contracts; b) Piece rate jobs tend to be associated with more worker autonomy and fewer tasks performed than hourly paid jobs; c) tight labor market conditions tend to be associated with the use of bonuses and promotions instead of efficiency wages. Cet article cherche à organiser de façon systématique le choix des différentes méthodes de rémunération selon les caractéristiques observables des emplois. Par après, nous examinons de façon empirique les facteurs influençant le choix de ces méthodes en utilisant l'information concernant les caractéristiques des emplois contenue dans le Quality of Employment Survey, le National Longitudinal Survey of Youth, le Panel Study of Income Dynamics et le Current Population Survey. La principale conclusion est qu'il n'existe aucun modèle de la relation d'emploi qui puisse expliquer de façon satisfaisante la variation observée dans les méthodes de compensation.Les résultats plus spécifiques sont les suivants : a) le nombre de tâches semble être associé à l'emploi de contrats incomplets; b) la rémunération à la pièce va de paire avec la parcimonie des tâches de même qu'avec l'autonomie accrue du travailleur; c) un marché du travail local serré tend à être associé avec l'utilisation de bonis et de promotions plutôt que des salaires d'efficience.Job characteristics, methods of pay, incomplete contracts, agency models, Caractéristiques des emplois, méthodes de rémunération, contrats incomplets, modèles d'agence

Institutions and Contract Enforcement

We provide evidence on how two important types of institutions – dismissal barriers, and bonus pay – affect contract enforcement behavior in a market with incomplete contracts and repeated interactions. Dismissal barriers are shown to have a strong negative impact on worker performance, and market efficiency, by interfering with firms' use of firing threat as an incentive device. Dismissal barriers also distort the dynamics of worker effort levels over time, cause firms to rely more on the spot market for labor, and create a distribution of relationship lengths in the market that is more extreme, with more very short and more very long relationships. The introduction of a bonus pay option dramatically changes the market outcome. Firms are observed to substitute bonus pay for threat of firing as an incentive device, almost entirely offsetting the negative incentive and efficiency effects of dismissal barriers. Nevertheless, contract enforcement behavior remains fundamentally changed, because the option to pay bonuses causes firms to rely less on long-term relationships. Our results show that market outcomes are the result of a complex interplay between contract enforcement policies and the institutions in which they are embedded