Gangopadhyay D.,Ramakrishna Mission Vivekananda University |
Manna G.,Prabhat Kumar College Contai
EPL | Year: 2012
An emergent-gravity metric incorporating k-essence scalar fields φ having a Born-Infeld-type Lagrangian is mapped into a metric whose structure is similar to that of a blackhole of large mass M that has swallowed a global monopole. However, here the field is not that of a monopole but rather that of a k-essence scalar field. If φemergent are the solutions of the emergent-gravity equations of motion under cosmological boundary conditions at ∞, then for the rescaled field has exact correspondence with φ with φ(r,t) = φ1(r) + φ2(t). The Hawking temperature of this metric is , taking the speed of light c = 1. Here is the kinetic energy of the k-essence field φ and K is always less than unity, kB is the Boltzmann constant. This is phenomenologically interesting in the context of Belgiorno et al.'s gravitational analogue experiment. © Copyright EPLA, 2012.