Entanglement harvesting in double-layer graphene by vacuum fluctuations in a microcavity
arXiv:1808.03990 · doi:10.1103/PhysRevD.98.045006
Abstract
The aim of this work is to study the entanglement harvesting between two graphene layers inside a planar microcavity. Applying time-dependent perturbation theory it is shown that nonclassical correlations between electrons in different layers are obtained through the exchange of virtual photons. Considering different initial states of the electrons and the vacuum state of the electromagnetic field, the negativity measure that quantifies the entanglement is computed through the photon propagator for time scales smaller than the light-crossing time of the double layer. The results are compared with those obtained for hydrogenic probes and pointlike Unruh-DeWitt detectors, showing that for different initial states, entangled X states and more general entangled reduced matrices are obtained, which enlarge the classification of bipartite quantum states.
16 pages, 6 figures
References in corpus (19)
- The electronic properties of graphene
- Polaritons in layered 2D materials
- Andreev reflection and Klein tunneling in graphene
- Strong Coulomb drag and broken symmetry in double-layer graphene
- Tuneable electronic properties in graphene
- Entangling Power of an Expanding Universe
- Entanglement harvesting from the electromagnetic vacuum with hydrogenlike atoms
- Wavepacket detection with the Unruh-DeWitt model
- Entanglement between the future and past in the quantum vacuum
- Quantum Measurement Information as a key to Energy Release from Local Vacuums
- Information transmission without energy exchange
- Plasmons in layered structures including graphene
- Entanglement universality of two-qubit X-states
- Quantum friction between graphene sheets
- Ground state magnetization of conduction electrons in graphene with Zeeman effect
- Entanglement entropy between real and virtual particles in quantum field theory
- Influence of temperature on the magnetic oscillations in graphene with spin splitting: a new approach
- Band gaps induced by vacuum photons in closed semiconductor cavities
- Entanglement entropy between virtual and real excitations in quantum electrodynamics
Cited by in corpus (10)
- Harvesting correlations in Schwarzschild and collapsing shell spacetimes
- Quantum Temporal Superposition: the case of QFT
- Gravitational waves affect vacuum entanglement
- Bandlimited Entanglement Harvesting
- Fate of entanglement between two Unruh-DeWitt detectors due to their motion and background temperature
- Vacuum entanglement harvesting with a zero mode
- Harvesting Entanglement by non-identical detectors with different energy gaps
- How measuring a quantum field affects entanglement harvesting
- Entanglement harvesting in buckled honeycomb lattices by vacuum fluctuations in a microcavity
- Unruh-DeWitt detector's response to a non-relativistic particle