A detailed investigation of what will happen when more than one exciton is present in the initial stage of a metal-insulator transition is presented. It is found that under some approximations a 'vacuum polarization' term causes the excitons to attract each other, which suggests a first order transition to a condensed phase of finite exciton density, which could be of molecular, metallic or van der Waal's type.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physics and Astronomy(all)