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Topic: Schwinger model


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  Julian Schwinger - Wikipedia, the free encyclopedia
Schwinger was born in New York City and attended the City College of New York as an undergraduate before transferring to Columbia University, where he received his B.A. in 1936 and his Ph.D. (overseen by I.I. Rabi) in 1939.
Schwinger left Harvard in 1972 for a position the University of California, Los Angeles where he continued his work on source theory, until his death.
Schwinger was more mathematically inclined and heavily favoured mathematical rigour in his way of doing physics, especially in the field of Quantum Field Theory.
en.wikipedia.org /wiki/Julian_Schwinger   (587 words)

  
 Non-Perturbative Methods Workshop Abstracts
Strong-coupling series expansions are calculated for "positronium" energy states in Hamiltonian lattice QED in (1+1)D (the Schwinger model) and (2+1)D. The series are obtained using linked-cluster methods, and extrapolated towards the continuum limit using Pade or integrated differential approximants.
The models in non-Abelia gauge theory are found in which topological excitations (instantons and anti-instantons) are "polarized", i.e.
The Schwinger model (1+1D QED) is the simplest of all gauge field theories, and can be solved analytically in the two limits of strong coupling, e>>m, and weak coupling, e<
www.physics.adelaide.edu.au /cssm/workshops/qft_98_abstracts.html   (3083 words)

  
 The Lund Model - Cambridge University Press
The Hanbury-Brown-Twiss-effect and polarisation in the Lund model; 14.
The Lund gluon model, the kinematics and the decay properties; 15.
It is an authoritative source of information on models, originating in Lund, which form the basis of Monte Carlo programmes that are widely used in the analysis of data in the collisions of high energy particles.
www.cambridge.org /catalogue/catalogue.asp?isbn=0521420946   (408 words)

  
 Schwinger model - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-11-07)
In physics, the Schwinger model, named after Julian Schwinger, is the model describing 2D Euclidean quantum electrodynamics with a Dirac fermion.
This model can be solved exactly and is used as a toy model for other more complex theories.
This model exhibits confinement of the fermions and as such, is a toy model for QCD.
en.wikipedia.org /wiki/Schwinger_model   (140 words)

  
 7-Vertex Model series
B 362 (1991) 641) it is equivalent to the lattice Schwinger model for (n_f=1) Wilson fermions in strong coupling (beta=0).
On the Phase Structure of the Schwinger Model with Wilson Fermions, H. Gausterer and C.B. Lang, Nucl.
Some approximate analytical methods in the study of the self-avoiding loop model with variable bending rigidity and the critical behaviour of the strong coupling lattice Schwinger model with Wilson fermions, K.
physik.kfunigraz.ac.at /~cbl/cbl-v7-series.html   (218 words)

  
 [No title]
The subatomic interactions between mesons and baryons is believed to arise from the interaction between the quarks and gluons contained within the particles.
This difficult many-body field theory problem is modeled by considering only the baryons as bound states of quarks, and by treating the mesons as elementary fields.
The gluon degrees of freedom are averaged out of the theory, resulting in an effective color dielectric field which binds the quarks within the baryons.
www.cpc.cs.qub.ac.uk /summaries/ADHA_v1_0.html   (165 words)

  
 Ben Svetitsky's papers online
Svetitsky, Divergent chiral condensate in the quenched Schwinger model,
We calculate numerically the eigenvalue distribution of the overlap Dirac operator in the quenched Schwinger model on a lattice.
Alec J. Schramm and Benjamin Svetitsky, Topology and metastability in the lattice Skyrme model, Phys.
giulio.tau.ac.il /~bqs/online.html   (4532 words)

  
 CERN Courier - Bookshelf - IOP Publishing - article
However, it would be rather diminishing to Schwinger to call the attention of the public only to his most rewarded piece of work; in fact, Schwinger's manifold contribution in almost all areas of theoretical physics has permeated scientific literature ever since.
The seminal papers chosen to be reproduced in A Quantum Legacy (44 of the 185 papers that Schwinger wrote in his lifetime) complement a previous volume, edited by Milton with Christian Fronsdal of UCLA and the late mathematical physicist Moshe Flato of Dijon, which appeared in 1978, on the occasion of Schwinger's 60th birthday.
The present collection divides the seminal papers by Schwinger according to the different areas in which he worked: first "Quantum electrodynamics I, II and III" (written between 1948 and 1949), where his formulation of QED was given.
www.cerncourier.com /main/article/40/10/24   (2152 words)

  
 Strong and Electroweak Matter 2004 - R. Álvarez-Estrada   (Site not responding. Last check: 2007-11-07)
An isolated statistical many-particle system, with microscopic dynamics described by massless Quantum Electrodynamics in one spatial dimension (massless Schwinger model) is studied in out-of-equilibrium cases.
This constitutes a model of Non-Equilibrium Quantum Field Theory.
The initial condition is chosen to correspond to local equilibrium situations, with a spatially inhomogeneous distribution of temperatures.
www.physics.helsinki.fi /~tfo_sewm/posters/alvarez_estrada   (90 words)

  
 Numerische Simulationen von Higgs-Modellen
The SU(2) Higgs and the Schwinger model on the lattice were analysed.
Numerical simulations of the SU(2) Higgs model were performed to study the finite temperature electroweak phase transition.
The Schwinger model was simulated at different gauge couplings to analyse the properties of the Kaplan-Shamir fermions.
www.webstart-easy.de /andreas/diss.html   (246 words)

  
 [No title]   (Site not responding. Last check: 2007-11-07)
We work within the Hamiltonian framework on the cylinder, and construct the field operators and observables as well--defined operators on the physical Hilbert space.
The complete solution of the model is found using the boson--fermion correspondence, and the formalism for calculating all gauge invariant Green functions is provided.
We illustrate the latter by performing the limit to the Thirring--Schwinger model where the interaction becomes local.
www.ma.utexas.edu /mp_arc/a/96-447   (132 words)

  
 Julian Schwinger
Schwinger was born in New York City, attended the City College of New York as an undergraduate, and received his doctorate from Columbia University in 1939 where he studied under I.I. Rabi.
Three of his students won Nobel prizes: Benjamin Roy Mottelson, Sheldon Glashow and Walter Kohn (in chemistry).
Schwinger left Harvard in 1974 for a position the University of California, Los Angeles where he continued his work on source theory.
www.mlahanas.de /Physics/Bios/JulianSchwinger.html   (464 words)

  
 Wieland Schwinger - Publications
Wieland Schwinger Retschitzegger Werner, Franz Pühretmair, Gerhard Nussbaum:
Khalil-Ibrahim Ismail, Edgar Weippl, Werner Winiwarter, Schwinger Wieland:
Kappel Gerti, Retschitzegger Werner, Kimmerstorfer Eugen, Pöll Brirgit, Schwinger Wieland, Hofer Thomas,
www.schwinger.at /publications.html   (959 words)

  
 CV
Topological properties of 2d models and SU(N) gauge theories on the lattice, topological structure of the QCD vacuum.
Farchioni and V. Laliena, ``Properties of the fixed point lattice Dirac operator in the Schwinger model'', Phys.
model on the lattice with the fixed point action''; Italian Meeting of Theoretical Physics of Elementary Particles, Cortona (Italy), June 1995.
pauli.uni-muenster.de /~farchion/CV/CV.html   (986 words)

  
 SUNY-NTG Preprints Listed by Number
G.E. Brown and J. Wambach Model for the Quasifree Polarization-Transfer Measurements in the (p,n) Reaction at 495 MeV Nucl.
A. Fayyazuddin, T.H. Hansson, M.A. Nowak, J. Verbaarschot, and I. Zahed Finite Temperature Correlators in the Schwinger Model Nucl.
J.V. Steele, J.J.M. Verbaarschot and I. Zahed Invariant Fermion Correlator in the Schwinger Model on the Torus Phys.
tonic.physics.sunysb.edu /pp.html   (2291 words)

  
 Lutsen '97 Workshop Program
L. Martinovic, Theta-Dependence of Observables in the Light-Front Massive Schwinger Model.
P. Srivastava, BRS-BFT Quantization of the Chiral Schwinger Model on the Light Front.
Y. Hosotani, Chiral Condensates in the n-Flavor Schwinger Model.
www.d.umn.edu /physics/program.htm   (589 words)

  
 [No title]
\smallskip \item{35.} Chiral Schwinger model in curved space-time, with J. Barcelos- Neto, Zeitschrift f\"ur Physik C {\bf 32}, 527 (1986).
\smallskip \item{71.} Generalized Schwinger model and a theory of interacting photons and majorana fermions, with P.F. Bedaque and W. Huang, Phys.
\smallskip \item{129.}Supersymmetry and the Chiral Schwinger Model, with R. Amorim, to be published in Phys.
www.pas.rochester.edu /~das/reports.html   (4684 words)

  
 pubpar
Batalin-Vilokovisky lagrangian quantization of the chiral Schwinger model N.R.F. Braga and H. Montani; Phys.
Schwinger's method for a harmonic oscillator with a time-dependent frequency C.
Chiral Schwinger's Model with a Podolsky Term at Finite Temperature H. Boschi Filho, C. D Natividade and A. de Souza; Z. fur Physik C 67(1995) 687-693
www.if.ufrj.br /research/pubpar.html   (5967 words)

  
 The Phase Structure of the Weakly Coupled Lattice Schwinger Model   (Site not responding. Last check: 2007-11-07)
We develop a new expression for the partition function of the weakly coupled lattice Schwinger model with Wilson fermions from which its Lee--Yang zeroes are easily determined.
Finite--size scaling then recovers previous numerical results for the small and moderate lattice sizes to which those studies were confined.
On large lattices, however, the zeroes fail to accumulate on the hopping parameter axis, the consequence of which is the absence of a zero fermion mass phase transition in the Schwinger model with single flavour Wilson fermions at constant weak gauge coupling.
www.maths.tcd.ie /report_series/abstracts/tcdm9901.html   (109 words)

  
 Chris Hamer   (Site not responding. Last check: 2007-11-07)
Hamer, C.J. ``Phase diagram of the one-dimensional Holstein model of spinless fermions'', Phys.
Hamer, C. ``Density matrix renormalisation group approach to the massive schwinger model'', in Proceedings of Lattice Hadron Physics 2001, Cairns.
Hamer, C.J. "Magnon and hole excitations in the two-dimensional half-filled Hubbard model", Phys.
parallel.hpc.unsw.edu.au /edu/researchdb/cjh.html   (872 words)

  
 Publications
Blom and E. Langmann Novel Integrable Spin-Particle Models from Gauge Theories on a Cylinder.
Ohlsson and H. Snellman Chiral Quark Model Analysis of Nucleon Quark Sea Isospin Asymmetry and Spin Polarization.
Langmann Quantum field theory models for Fermion systems: Topics between Physics and Mathematics invited lecture at Summer School on ``Geometric Methods for Quantum Field Theory'', Villa de Leyva, Colombia, July 12-30, 1999 published in: H.
www.theophys.kth.se /mathphys/publ.html   (2862 words)

  
 Professor Sanjoy K. Sarker   (Site not responding. Last check: 2007-11-07)
Professor Sarker is engaged in theoretical research into the problem of highly correlated electron systems: high temperature cuprate superconductors and fullerenes, heavy fermions, as well as properties of transition metal oxides such as rare-earth manganates which show anomalous magnetoresistance.
His work seeks a theoretical understanding of unusual properties of these systems that are caused by a delicate interplay between the charge and spin degrees of freedom, based on the Hubbard, t-J and Anderson models.
"Theory of Spin-charge Separation and Recombination in the t-J Model," Phys.
bama.ua.edu /~physics/faculty/sarker.html   (160 words)

  
 List of Publications
The Schwinger Model - From Strong Coupling to Fixed-Point Actions, University of Graz (1998), Advisor: Christian B. Lang [ps].
Field Theoretical Models on Non-Commutative Spaces, University of Munich (2003), Advisor: Julius Wess [ps].
Non-Commutative Standard Model, with X. Calmet, B. Jurco, P. Schupp, J. Wess, Proceedings of the Twenty-Fourth International Colloquium on Group Theoretical Methods in Physics held in Paris, France, 15-20 July 2002; Inst.
homepage.univie.ac.at /Michael.Wohlgenannt/publ.htm   (468 words)

  
 Perseus Lookup Tool   (Site not responding. Last check: 2007-11-07)
Carvalhaes, C. G., Belvedere, L. V., Natividade, C. P., Filho, H. Boschi; Algebraic Isomorphism In Two-Dimensional Anomalous Gauge Theories: The operator solution of the anomalous chiral Schwinger model is discussed on the basis of the general principles of Wightman field theory.
Some basic structural properties of the model are analyzed taking a careful control on the Hilbert space associated with the Wightman functions.
We show that (i) the Theta-vacuum representation and (ii) the suggested equivalence of vector Schwinger model and chiral Schwinger model cannot be established in terms of the intrinsic field algebra., Comment: 38 pages, LaTex, uses revtex, to appear in Annals of Physics [Text] [View with Perseus links] (1.02)
www.perseus.tufts.edu /cgi-bin/vor?lookup=Euryalos   (416 words)

  
 Papers of IFS - 2006   (Site not responding. Last check: 2007-11-07)
Proceedings of the Workshop on Multi-Paradigm Modeling: Concepts and Tools at the 9th International Conference on Model-Driven Engineering Languages and Systems Genova, Italy, October, 2006
Proceedings of the 2nd Workshop on Models and Aspects, (ECOOP'06), Nantes, France, July 2006
Proceedings of the 8th International Workshop on Aspect-Oriented Modeling (AOM), held together with AOSD06, 20-24 March 2006, Bonn, Germany
www.ifs.uni-linz.ac.at /ifs/research/publications/papers06.html   (430 words)

  
 DC MetaData for: A Treatment of the Schwinger Model within Noncommutative Geometry   (Site not responding. Last check: 2007-11-07)
DC MetaData for: A Treatment of the Schwinger Model within Noncommutative Geometry
A Treatment of the Schwinger Model within Noncommutative Geometry
extension of the model - the Schwinger model on a noncommutative sphere is
www.esi.ac.at /Preprint-shadows/esi554.html   (97 words)

  
 Official home page of Arjan van der Sijs
Three projects related to the Schwinger model (hep-lat/9709104)
The fermion condensate in the massive one-flavour Schwinger model
High-Tc superconductivity - a lattice field theoretical model (cond-mat/9706022, cond-mat/9804184)
www.scsc.ethz.ch /homes/Sijs.html   (282 words)

  
 Non-Perturbative Methods Workshop Program
Improved chiral perturbation theory approach to the nucleon-nucleon interaction
The model for QCD running coupling contant with dynamically generated mass and enhancement in the infrared region
The infrared behaviour of the gluon propagator from lattice QCD
www.physics.adelaide.edu.au /cssm/workshops/qft_98_program.html   (368 words)

  
 [No title]   (Site not responding. Last check: 2007-11-07)
Results for the Full and Approximate Neuberger Operator in the Schwinger Model.
We present a high statistics study of the spectrum and chiral
properties of the massive two dimensional Schwinger model on the
t8web.lanl.gov /LAT00/abstract/22438   (53 words)

  
 Publisher description for Library of Congress control number 97032156   (Site not responding. Last check: 2007-11-07)
Publisher description for The Lund model / Bo Andersson.
Bibliographic record and links to related information available from the Library of Congress catalog
Library of Congress subject headings for this publication: Particles (Nuclear physics) Mathematical models, Quark-gluon interactions Mathematical models
www.loc.gov /catdir/description/cam028/97032156.html   (183 words)

  
 MDWE 2005 - Model Driven Web Engineering - Workshop Agenda
"A Model Driven Approach for the Integration of External Functionality in Web Applications.
Reiter, E. Kapsammer, W. Retschitzegger and W. Schwinger:  
Floppy disks or other kinds of media are discouraged since the computer at the room may not be able to read them.
www.lcc.uma.es /~av/mdwe2005/agenda.html   (301 words)

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