Abstract

We study the influence of impurities in graphene described by a scattering rate Γ on the Casimir interaction between graphene and an ideal conductor or between two identical sheets of graphene at zero temperature and chemical potential. The polarization tensor of graphene quasiparticles is computed with impurity scattering and used to derive conductivities and Casimir energy densities via the Lifshitz formula. The results show that impurity scattering can either slightly damp or considerably enhance the Casimir interaction depending on the mass gap parameter.

Abstract

We study the influence of impurities in graphene described by a scattering rate Γ on the Casimir interaction between graphene and an ideal conductor or between two identical sheets of graphene at zero temperature and chemical potential. The polarization tensor of graphene quasiparticles is computed with impurity scattering and used to derive conductivities and Casimir energy densities via the Lifshitz formula. The results show that impurity scattering can either slightly damp or considerably enhance the Casimir interaction depending on the mass gap parameter.

Abstract

We study the influence of impurities in graphene described by a scattering rate Γ on the Casimir interaction between graphene and an ideal conductor or between two identical sheets of graphene at zero temperature and chemical potential. The polarization tensor of graphene quasiparticles is computed with impurity scattering and used to derive conductivities and Casimir energy densities via the Lifshitz formula. The results show that impurity scattering can either slightly damp or considerably enhance the Casimir interaction depending on the mass gap parameter.

Abstract

We study the influence of impurities in graphene described by a scattering rate Γ on the Casimir interaction between graphene and an ideal conductor or between two identical sheets of graphene at zero temperature and chemical potential. The polarization tensor of graphene quasiparticles is computed with impurity scattering and used to derive conductivities and Casimir energy densities via the Lifshitz formula. The results show that impurity scattering can either slightly damp or considerably enhance the Casimir interaction depending on the mass gap parameter.