Termo cinético

Em física, um termo cinético é a parte do Lagrangeano que é bilinear nos campos (e para os modelos de sigma não lineares, eles não são ainda bilinear), e geralmente contém duas derivadas em função do tempo (ou espaço); no caso dos férmions, o termo cinético geralmente tem apenas uma derivada. A equação de movimento derivada de tal Lagrangiano contém operadores diferenciais que são gerados pelo termo cinético.[1][2]

Na mecânica, o termo cinético é

Na teoria quântica de campos, os termos cinéticos para campos escalares reais, campo eletromagnético e campo de Dirac[3][4][5][6] são

Referências

  1. R. M. Fuoss and F. Accascina, Electrolytic Conductance, Interscience, New York, 1959.
  2. Quantum Field Theory por David Tong (Michaelmas Term, 2006 e 2007)
  3. Edwards, D. (1981). «The Mathematical Foundations of Quantum Field Theory: Fermions, Gauge Fields, and Super-symmetry, Part I: Lattice Field Theories». Int. J. Theor. Phys. 20 (7): 503–517. Bibcode:1981IJTP...20..503E. doi:10.1007/BF00669437 
  4. Peskin, M and Schroeder, D. (1995). An Introduction to Quantum Field Theory, Westview Press. (See pages 35–63.)
  5. Srednicki, Mark (2007). Quantum Field Theory, Cambridge University Press, ISBN 978-0-521-86449-7.
  6. Weinberg, Steven (1995). The Quantum Theory of Fields, (3 volumes) Cambridge University Press.
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