English

Quantum-classical correspondence via coherent state in integrable field theory

Quantum Physics 2018-11-09 v1 Exactly Solvable and Integrable Systems

Abstract

We consider the problem of quantum-classical correspondence in integrable field theories. We propose a method to construct a field theoretical coherent state, in which the expectation value of the quantum field operator exactly coincides with the classical soliton. We also discuss the time evolution of this quantum state and the instability due to the nonlinearity.

Keywords

Cite

@article{arxiv.1811.03186,
  title  = {Quantum-classical correspondence via coherent state in integrable field theory},
  author = {Jun Sato and Tsukasa Yumibayashi},
  journal= {arXiv preprint arXiv:1811.03186},
  year   = {2018}
}

Comments

3 pages

R2 v1 2026-06-23T05:08:25.082Z