Degradation of non-maximal entanglement of scalar and Dirac fields in non-inertial frames

Abstract

The entanglement between two modes of the free scalar and Dirac fields as seen by two relatively accelerated observers has been investigated. It is found that the same initial entanglement for an initial state parameter $\alpha$ and its "normalized partner" $\sqrt{1-{\alpha }^2}$ will be degraded by the Unruh effect along two different trajectories except for the maximally entangled state, which just shows the inequivalence of the quantization for a free field in the Minkowski and Rindler coordinates. In the infinite acceleration limit the state doesn't have the distillable entanglement for any $\alpha$ for the scalar field but always remains entangled to a degree which is dependent of $\alpha$ for the Dirac field. It is also interesting to note that in this limit the mutual information equals to just half of the initially mutual information, which is independent of $\alpha$ and the type of field.

9 pages, 4 figures

References in corpus (2)

• Entanglement of Dirac fields in non-inertial frames
• Quantum Entanglement of Moving Bodies

Cited by in corpus (20)

• Entangling moving cavities in non-inertial frames
• Fermionic entanglement ambiguity in non-inertial frames
• Entanglement degradation in multi-event horizon spacetimes
• Entanglement of Tripartite States with Decoherence in Noninertial frames
• Basis-independent quantum coherence and its distribution under relativistic motion
• Fate of entanglement between two Unruh-DeWitt detectors due to their motion and background temperature
• Tripartite entanglement of fermionic system in accelerated frames
• The Final Merger of Black-Hole Binaries
• Entangled Detectors Nonperturbatively Harvest Mutual Information
• Quantum Broadcast Channels with Cooperating Decoders: An Information-Theoretic Perspective on Quantum Repeaters
• Bosonic and fermionic coherence of N-partite states in the background of a dilaton black hole
• Entanglement dynamics of non-inertial observers in a correlated environment
• How the Hawking effect and prepared states affect Entanglement distillability of Dirac fields
• Schwinger effect of a relativistic boson entangled with a qubit
• Decoherence and multipartite entanglement of non-inertial observers
• Spin entanglement of two spin-1/2 particles in a classical gravitational field
• Entanglement of Open Quantum Systems in Noninertial Frames
• Quantum steering for different types of Bell-like states in gravitational background
• Classical State Masking over a Quantum Channel
• Quantum Discord and Quantum Entanglement in the Background of an Asymptotically Flat Static Black Holes