Particle and antiparticle bosonic entanglement in noninertial frames

We analyze the entanglement tradeoff between particle and antiparticle modes of a charged bosonic field between inertial and uniformly accelerated observers. In contrast with previous results for fermionic fields, we find that the entanglement redistribution between particle and antiparticle modes does not prevent the entanglement from vanishing in the infinite acceleration limit.

Figure 1

Negativity $\mathcal{N}$ as a function of $r$ for the state ${\rho }_{A-R}$. Curves are for $q_R=1$, 0.9, 0.7, 0.6, 0.5, 0.3, 0.1 from top to bottom.

Figure 2

Negativity $\mathcal{N}$ as a function of $r$ for the state $-{\rho }_{A-R}$. Curves are for $q_R=1$, 0.9, 0.7, 0.6, 0.5, 0.3, 0.1 from top to bottom.

Figure 3

Negativity $\mathcal{N}$ as a function of $r$ for the state ${\rho }_{A-R}$. Curves are for $q_R=1$, 0.9, 0.7, 0.6, 0.5, 0.3, 0.1 from top to bottom.

Figure 4

Negativity $\mathcal{N}$ as a function of $r$ for the state ${\rho }_{A-R}$ and $q_R=0.9$. A detail of the curve shown in Fig. 3 as the second curve from the top for $0<r<0.25$.

Figure 5

Negativity $\mathcal{N}$ as a function of $r$ for the state ${\rho }_{A-R}$. Curves are for $q_R=1$, 0.9, 0.7, 0.6, 0.5 from top to bottom.