Zobrazeno 1 - 10
of 117
pro vyhledávání: '"K.D. Rothe"'
Publikováno v:
Physics Letters B. 479:429-434
Using purely Hamiltonian methods we derive a simple differential equation for the generator of the most general local symmetry transformation of a Lagrangian. The restrictions on the gauge parameters found by earlier approaches are easily reproduced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3e7218c46ca247b06b4f109baebc5c7
https://doi.org/10.1016/s0370-2693(00)00323-3
https://doi.org/10.1016/s0370-2693(00)00323-3
We reconsider the problem of finding all local symmetries of a Lagrangian. Our approach is completely Hamiltonian without any reference to the associated action. We present a simple algorithm for obtaining the restrictions on the gauge parameters ent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4986e43da17c24eb7469a2041a2d6b4
http://arxiv.org/abs/hep-th/9906072
http://arxiv.org/abs/hep-th/9906072
Autor:
D.C. Cabra, K.D. Rothe
We obtain an explicit realization of all the primary fields of the Ising model in terms of a conformal field theory of constrained fermions. The four-point correlators of the energy, order and disorder operators are explicitly calculated.
Commen
Commen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a73a2c41918aca2c37c9f52cf22e9be4
Autor:
J.A. Swieca, K.D. Rothe
Publikováno v:
Nuclear Physics B. 138:26-30
The role of the θ angle occuring in the vacuum structure of gauge theories is illustrated by means of a quantum mechanical example.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1927637d33d634100a7b36bedafe6a90
https://doi.org/10.1016/0550-3213(78)90154-2
https://doi.org/10.1016/0550-3213(78)90154-2
Publikováno v:
Nuclear Physics B. 160:330-348
We obtain a closed representation for the QCD 2 fermion determinant, euclidean Green functions and induced current in generic external fields. In the absence of zero modes the results are representable as sums over tree diagrams which as we show, can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e27001e9d918b4f4303a5a3aaa0f5966
https://doi.org/10.1016/0550-3213(79)90063-4
https://doi.org/10.1016/0550-3213(79)90063-4
Publikováno v:
Physical Review D. 19:3020-3023
The influence of vacuum polarization on a confinement picture is discussed. The pair-production effects on the potential between two external charges are analyzed in the Schwinger model. Depending on the order of magnitude of the fermion mass, one ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e034258cc835bb34b70345a9da1c9c7
https://doi.org/10.1103/physrevd.19.3020
https://doi.org/10.1103/physrevd.19.3020
Autor:
K.D. Rothe, N.S. Craigie
Publikováno v:
Nuclear Physics B. 82:381-396
In I (see preceding paper) we studied the asymptotic behaviour of the n -particle and total cross sections for e + e − annihilation within the framework of a cascade model, allowing for a large class of transition form factors. We here extend the d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::473bb3af775e20a3ac9d6212896e22e1
https://doi.org/10.1016/0550-3213(74)90425-8
https://doi.org/10.1016/0550-3213(74)90425-8
Publikováno v:
Physical Review D. 20:3203-3212
We obtain a closed expression for the functional determinant of the Dirac operator in two-dimensional QED by confronting results on cluster decomposition with direct fermion integration in the presence of Atiyah-Singer zero modes. The result is shown
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::628e426e60628f683a3e9873ccc35f36
https://doi.org/10.1103/physrevd.20.3203
https://doi.org/10.1103/physrevd.20.3203
Autor:
K.D. Rothe, Bert Schroer
Publikováno v:
Nuclear Physics B. 185:429-444
A careful study of the existence of exotic states in two-dimensional gauge theories with SU( M )-flavour and diagonal SU( N )-colour symmetry is made using non-perturbative operator techniques. Special care is given to the interpretation of these exo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c306dd0a290dbdaa1f6b3940de7c9f42
https://doi.org/10.1016/0550-3213(81)90328-x
https://doi.org/10.1016/0550-3213(81)90328-x
Publikováno v:
Nuclear Physics B. 153:112-140
We consider the Abelian generalization of QED 2 to include SU( M ) flavour and “diagonal” SU( N ) colour. The operator solutions and confinement aspects of these models are discussed in detail for the case of massless and massive fermions. For a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54679c45bfe5f547fe3a881d593461d4
https://doi.org/10.1016/0550-3213(79)90594-7
https://doi.org/10.1016/0550-3213(79)90594-7