Abstract
A photonic realization of the quantum field theoretical Lee model, describing the strong coupling of two neutral fermions and a neutral scalar boson field, is proposed in the ghost regime, where the Lee Hamiltonian is non-Hermitian but symmetric. Our optical system, which is based on light transport in an engineered semi-infinite waveguide lattice, could provide an accessible laboratory system to simulate -symmetric quantum field theories and to visualize the appearance and role of ghost states in the dynamics.
- Received 5 December 2011
DOI:https://doi.org/10.1103/PhysRevA.85.012112
©2012 American Physical Society