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pro vyhledávání: '"Sapan Karki"'
Autor:
Sapan Karki, Brett Altschul
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 4, Pp 1-18 (2024)
Abstract In the presence of topologically nontrivial bosonic field configurations, the fermion number operator may take on fractional eigenvalues, because of the existence of zero-energy fermion modes. The simplest examples of this occur in $$1+1$$ 1
Externí odkaz:
https://doaj.org/article/523c83566613486a82f16f0167ff21d1
Autor:
Sapan Karki, Brett Altschul
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 8, Pp 1-12 (2022)
Abstract Effective quantum field theories that allow for the possibility of Lorentz symmetry violation can sometimes also include redundancies of description in their Lagrangians. Explicit calculations in a Lorentz-violating generalization of Yukawa
Externí odkaz:
https://doaj.org/article/22e7384c57b74fc89cdf1bc598ae9a06
Autor:
Sapan Karki, Brett Altschul
Publikováno v:
Symmetry, Vol 14, Iss 11, p 2326 (2022)
It is known that in Lorentz-violating effective field theory, there is a classical equivalence between certain coefficients (c and f), in spite of the fact that the operators of the two types of coefficients described appear to have opposite behavior
Externí odkaz:
https://doaj.org/article/4a04e2a8c56d469a83c5d4ba9b6b7490
Autor:
Sapan Karki, Brett Altschul
Publikováno v:
European Physical Journal
Effective quantum field theories that allow for the possibility of Lorentz symmetry violation can sometimes also include redundancies of description in their Lagrangians. Explicit calculations in a Lorentz-violating generalization of Yukawa theory sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17b116e765676742ffd899320b8ee332
http://arxiv.org/abs/2110.08646
http://arxiv.org/abs/2110.08646
Autor:
Sapan Karki, Brett Altschul
Publikováno v:
Physical Review
Lorentz- and CPT-violating models of electrodynamics with Chern-Simons terms are typically plagued by various sorts of instabilities. However, when the Chern-Simons term arises from a slow time variation in a pseudoscalar field with an axion-like ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc694d853ff57c72001138ba7f108f90
https://doi.org/10.1103/physrevd.102.035009
https://doi.org/10.1103/physrevd.102.035009