Antikaon condensates with Dark vector meson in neutron stars

Neutron stars are alluring objects that serves as a natural laboratory to probe exotic states of dense matter. Recent observation of gravitational waves from compact star mergers such as (GW170817, GW190814) has opened a new window to the Universe and may possibly connect to the dark matter sector as well. We investigated the role of antikaon condensation and its effect with dark vector meson in static neutron stars. The presence of K− results in smaller maximum mass for the stars and independent of the Kaon potential depth. It is rather interesting to note that with the addition of dark matter, we see significant decrease in the radius and its tidal deformability, both of which now agrees to the range specified by GW170817 data