Engineering the unitary charge-conjugation operator of quantum field   theory for particle-antiparticle using trapped ions and light fields in   cavity QED
  We present a method to engineer the unitary charge conjugation operator, as given by quantum field theory, in the highly controlled context of quantum optics, thus allowing one to simulate the creation of charged particles with well-defined momenta simultaneously with their respective antiparticles. Our method relies on trapped ions driven by a laser field and interacting with a single mode of a light field in a high Q cavity. 
N. G. de Almeida
quant-ph