Experimental realization of entanglement sudden death and rebirth at room temperature in diamond

We experimentally demonstrate the dynamics of entangled quantum states under different noise environments using the electron-nuclear spin system in diamond operating at room temperature. We use multi-pulse sequences that dynamically suppress or resonantly amplify the interactions with $^{13}C$ spin bath to control the local environment of the electron spin. By way of the concurrence, we show that dissipation of electron spin into the spin bath leads to sudden death of entanglement. Furthermore, by selectively amplifying certain part of the interactions, we observe rebirth of entanglement after the sudden death.