From the generalized fluctuation-dissipation theorem, it is known that a body at rest made of
nonreciprocal material may experience a torque, even in vacuum, if it is not in thermal …

We suggest the existence of systems in which the statistics of a particle changes with the
quantum level it occupies. The occupation numbers in thermal equilibrium depend on a …

The basic thermodynamic quantities for a non-interacting scalar field in a periodic potential
composed of either a one-dimensional chain of Dirac δ-δ^ ′ δ-δ′ functions or a specific …

We analyze the influence of a massive photon in the dispersive interaction between two
atoms in their fundamental states. We work in the context of Proca quantum …

Not only are Casimir interaction entropies not guaranteed to be positive, but also, more
strikingly, Casimir self-entropies of bodies can be negative. Here, we attempt to interpret the …

In this paper we study the system of a scalar quantum field confined between two plane,
isotropic, and homogeneous parallel plates at thermal equilibrium. We represent the plates …

Abstract We investigate Bose–Einstein condensation of a noninteracting gas of Bose
particles moving in the background of a periodic lattice of delta functions. In the one …

Multiparticle thermal Casimir interactions are investigated, mostly in terms of the Casimir
entropy, from the point of view of multiple-scattering processes. The geometry of the …

Recently, the Casimir self-entropy of an electromagnetic δ-function shell was considered by
two different groups, with apparently discordant conclusions, although both had concluded …

In this paper we propose a coupling between the complex scalar field and an external Dirac
delta-like planar potential. The coupling is achieved through the Klein–Gordon current …