Families of particles with different masses in PT-symmetric quantum field theory
Bender, C. & Klevansky, S. P (2010). Families of particles with different masses in PT-symmetric quantum field theory. Physical Review Letters, 105(3), article number 031601. doi: 10.1103/physrevlett.105.031601
Abstract
An elementary field-theoretic mechanism is proposed that allows one Lagrangian to describe a family of particles having different masses but otherwise similar physical properties. The mechanism relies on the observation that the Dyson-Schwinger equations derived from a Lagrangian can have many different but equally valid solutions. Nonunique solutions to the Dyson-Schwinger equations arise when the functional integral for the Green's functions of the quantum field theory converges in different pairs of Stokes' wedges in complex-field space, and the solutions are physically viable if the pairs of Stokes' wedges are PT symmetric.
| Publication Type: | Article |
|---|---|
| Additional Information: | Copyright American Physical Society, 2010 |
| Subjects: | Q Science > QC Physics |
| Departments: | School of Science & Technology > Mathematics |
| SWORD Depositor: |
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