• A curiosity concerning the role of coherent states in quantum field theory

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/015/01/0107-0115

    • Keywords

       

      Quantum field theory; Fock representations; coherent states

    • Abstract

       

      In the usual Fock quantisation of fields in Minkowski space-time, one has the result that the expectation value of the quantum Hamiltonian in any coherent state equals the energy of the classical field at which the state is peaked. It is shown that this property can be used tocharacterise the usual Fock representation. It is also pointed out that the entire analysis goes through for a substantially more general class of systems including, in particular, Bose fields in arbitrary stationary space-times.

    • Author Affiliations

       

      Abhay Ashtekar1 2 Anne Magnon-Ashtekar1 3

      1. Raman Research Institute, Bangalore - 560 080
      2. Physics Department, Syracuse University, Syracuse, NY - 13210, USA
      3. Départment de Mathématique, Université de Clermont-Fd, Aubière - 63170, France
    • Dates

       
  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.