Connection between the elastic GEp/GMp and P to Delta form factors

It is suggested that the falloff in Qsq of the P to Delta magnetic form factor GM* is related to the recently observed falloff of the elastic electric form factor GEp/GMp. Calculation is carried out in the framework of a GPD mechanism

Every Sentiment Has a History : Affect and the Archive: An Interview with Ann Stoler

Ann Stoler is Willy Brandt Distinguished University Professor of Anthropology and Historical Studies at The New School for Social Research. She is the director of the Institute for Critical Social Inquiry. She has worked extensively on the politics of knowledge, colonial governance, racial epistemologies, the sexual politics of empire, and ethnography of the archives. Her books include Race and the Education of Desire: Foucault\u27s History of Sexuality and the Colonial Order of Things (1995), Carnal Knowledge and Imperial Power: Race and the Intimate in Colonial Rule (2002, 2010), and Along the Archival Grain: Epistemic Anxieties and Colonial Common Sense (2009)

Mean parity of single quantum excitation of some optical fields in thermal environments

The mean parity (the Wigner function at the origin) of excited binomial states, excited coherent states and excited thermal states in thermal channel is investigated in details. It is found that the single-photon excited binomial state and the single-photon excited coherent state exhibit certain similarity in the aspect of their mean parity in the thermal channel. We show the negative mean parity can be regarded as an indicator of nonclassicality of single-photon excitation of optical fields with a little coherence, especially for the single-photon excited thermal states.Comment: 4 pages, 4 figures, RevTex4; PACS numbers: 42.50.Dv, 03.65.Yz, 05.40.Ca; Three typo errors have been correcte

Single-shot measurement of quantum optical phase

Although the canonical phase of light, which is defined as the complement of photon number, has been described theoretically by a variety of distinct approaches, there have been no methods proposed for its measurement. Indeed doubts have been expressed about whether or not it is measurable. Here we show how it is possible, at least in principle, to perform a single-shot measurement of canonical phase using beam splitters, mirrors, phase shifters and photodetectors.Comment: This paper was published in PRL in 2002 but, at the time, was not placed on the archive. It is included now to make accessing this paper easie

Entanglement criteria via the uncertainty relations in su(2) and su(1,1) algebra: detection of non-Gaussian entangled states

We derive a class of inequalities, from the uncertainty relations of the SU(1,1) and the SU(2) algebra in conjunction with partial transposition, that must be satisfied by any separable two-mode states. These inequalities are presented in terms of the su(2) operators J_x, J_y, and the total photon number N_a+N_b. They include as special cases the inequality derived by Hillery and Zubairy [Phys. Rev. Lett. 96, 050503 (2006)], and the one by Agarwal and Biswas [New J. Phys. 7, 211 (2005)]. In particular, optimization over the whole inequalities leads to the criterion obtained by Agarwal and Biswas. We show that this optimal criterion can detect entanglement for a broad class of non-Gaussian entangled states, i.e., the su(2) minimum-uncertainty states. Experimental schemes to test the optimal criterion are also discussed, especially the one using linear optical devices and photodetectors.Comment: published version, presentation polished with references added, 7 pages, 4 figure

Scaling and Duality in Semi-exclusive Processes

We discuss extending scaling and duality studies to semi-exclusive processes. We show that semi-exclusive hard pion photoproduction should exhibit scaling behavior in kinematic regions where the photon and pion both interact directly with the same quark. We show that such kinematic regions exist. We also show that the constancy with changing momentum transfer of the resonance peak/scaling curve ratio, familiar for many resonances in deep inelastic scattering, is also expected in the semi-exclusive case.Comment: 8 pages, 4 figures, submitted to Phys.Rev.

The Ursinus Weekly, February 24, 1930

Dr. Leich presents impressive chapel talk • Juniata captures debate on Kellogg Pact question • Impressive Color Day ceremony by WSGA • Men debaters achieve win over Susquehanna • Ursinus wrestling team loses to Temple matmen • Male students fight dormitory fire Thursday • Temple defeats Ursinus in dual basketball game • Literary Club features originality at its meeting • Frosh and varsity teams lose to Villanova quintets • Lenten prayer services planned by Brotherhood • Senior musical revue whipping into shape • Ursinus sextette wins over Cedar Crest girls • Junior class elections • Brotherhood of St. Paul meets in Trinity Church • Credit plus religion subject of YMCA talk • Independent team leads fraternity league • Men\u27s Debating Club meeting held on Wednesday • Dr. Broome speaks at annual alumni dinner • Oregon type of debate to be held with Asbury • Juniors defeat seniors in basketball game 17-5 • Report of John Fertig \u2730 at Physics Club meetinghttps://digitalcommons.ursinus.edu/weekly/2142/thumbnail.jp

The Ursinus Weekly, September 30, 1929

Opening council dance ends first football week-end • Dickinson recovers blocked punt to gain 6-6 tie in Ursinus opener • Men\u27s booster committee headed by McGarvey \u2730 • Frosh-soph tug-of-war victory goes to frosh • New student council busy with opening activities • Y.M.C.A. membership drive shows splendid results • Stanley Omwake chosen president of junior class • Doctor Isenberg speaks at opening YM meeting • Girls\u27 hockey team shows promise of good season • Fine material turns out for cross country team • Women\u27s athletic council makes important changes • Brotherhood of St. Paul holds opening meeting • Initial pep meeting shows plenty of school spirit • Sophomore class elections interestingly contested • Literary club elects Paul Mattis \u2730 as president • Freshman class elects Frick first president • Frosh-soph fight • Editorial comment: Freshmen and the Weekly; Wrestling at Ursinus; Improving the group system • Bears will face green Haverford team Saturday • Schell\u27s little bears play Perkiomen schoolhttps://digitalcommons.ursinus.edu/weekly/2125/thumbnail.jp

The Ursinus Weekly, January 13, 1930

Montgomery County dance concludes Xmas vacation • Annual Christmas party held before holidays • Recreation hall scene of first social hour • Annual banquets held preceding Xmas party • Ursinus quintet loses two games during week • Young high scorer in Ursinus-F. & M. contest • Rose Maiden presented by college chorus • Mrs. Omwake hostess at girls\u27 Xmas party • Annual football banquet held at Highland Tuesday • Hockey letters awarded at annual banquet Friday • Basketball squad guests at home of Dr. Jordan • Engagement of prominent alumna announced December 28 • Sophomores defeat junior girls in interclass tilt • Parent education letter prepared by alumnus • W. D. Reimert \u2724 chosen editor of Allentown paper • Xmas communion held • Fogel \u2794 edits proverbs • Frosh quintet loses to F. & M. yearlings 44-20https://digitalcommons.ursinus.edu/weekly/2138/thumbnail.jp