Are multiple reflecting boundaries capable of enhancing entanglement harvesting?

• URL: http://arxiv.org/abs/2306.09943v2
• Date: Mon, 16 Oct 2023 10:56:12 GMT
• Title: Are multiple reflecting boundaries capable of enhancing entanglement harvesting?
• Authors: Dipankar Barman, Bibhas Ranjan Majhi
• Abstract summary: We study the generation of entanglement between two uniformly accelerated Unruh-DeWitt detectors. Reflecting boundaries in a spacetime has close resemblance to the cavity quantum optomechanical systems.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum entanglement harvesting in the relativistic setup attracted a lot of attention in recent times. Acquiring more entanglement within two qubits may be very desirable to establish fruitful communication between them. On the other hand use of reflecting boundaries in a spacetime has close resemblance to the cavity quantum optomechanical systems. Here, in presence of two reflecting boundaries, we study the generation of entanglement between two uniformly accelerated Unruh-DeWitt detectors which are interacting with the background scalar fields. Like no boundary and single boundary situations, entanglement harvesting is possible for their motions in opposite Rindler wedges. We observe that the reflecting boundaries can play double roles. In some parameter space it causes suppression, while in other parameter space we can have enhancement of entanglement compared to no boundary and single boundary cases. Thus increase of boundaries has significant impact in this phenomena and a suitable choices of parameters provides desirable increment of it.

Related papers

• Entanglement harvesting of circularly accelerated detectors with a reflecting boundary [6.737262801267465]
  We study the properties of the transition probability for a circularly accelerated detector in the presence of a reflecting boundary. We also analyze the entanglement harvesting phenomenon for two circularly accelerated detectors with a boundary.
  arXiv  Detail & Related papers  (2024-01-29T10:10:12Z)
• Harvesting correlations from vacuum quantum fields in the presence of a reflecting boundary [7.888731069560742]
  We study the phenomena of mutual information harvesting and entanglement harvesting for two detector-boundary alignments. The presence of the boundary generally inhibits mutual information harvesting relative to that in flat spacetime without any boundaries. The boundary may play a doubled-edged role in entanglement harvesting, i.e., inhibiting entanglement harvesting in the near zone of the boundary while assisting it in the far zone of the boundary.
  arXiv  Detail & Related papers  (2023-10-11T03:25:25Z)
• Bound state of distant photons in waveguide quantum electrodynamics [137.6408511310322]
  Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics. We predict a novel kind of bound quantum state in the simplest one-dimensional setup of two interacting particles in a box. Such states could be realized in the waveguide quantum electrodynamics platform.
  arXiv  Detail & Related papers  (2023-03-17T09:27:02Z)
• Bell inequalities with overlapping measurements [52.81011822909395]
  We study Bell inequalities where measurements of different parties can have overlap. This allows to accommodate problems in quantum information. The scenarios considered show an interesting behaviour with respect to Hilbert space dimension, overlap, and symmetry.
  arXiv  Detail & Related papers  (2023-03-03T18:11:05Z)
• Probing and harnessing photonic Fermi arc surface states using light-matter interactions [62.997667081978825]
  We show how to image the Fermi arcs by studying the spontaneous decay of one or many emitters coupled to the system's border. We demonstrate that the Fermi arc surface states can act as a robust quantum link.
  arXiv  Detail & Related papers  (2022-10-17T13:17:55Z)
• Formation of robust bound states of interacting microwave photons [148.37607455646454]
  One of the hallmarks of interacting systems is the formation of multi-particle bound states. We develop a high fidelity parameterizable fSim gate that implements the periodic quantum circuit of the spin-1/2 XXZ model. By placing microwave photons in adjacent qubit sites, we study the propagation of these excitations and observe their bound nature for up to 5 photons.
  arXiv  Detail & Related papers  (2022-06-10T17:52:29Z)
• Tuning long-range fermion-mediated interactions in cold-atom quantum simulators [68.8204255655161]
  Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
  arXiv  Detail & Related papers  (2022-03-31T13:32:12Z)
• Causal connectability between quantum systems and the black hole interior in holographic duality [7.226961695849204]
  In holographic duality an eternal AdS black hole is described by two copies of the boundary CFT in the thermal field double state. This identification has many puzzles, including the boundary descriptions of the event horizons, the interiors of the black hole, and the singularities.
  arXiv  Detail & Related papers  (2021-10-11T18:00:01Z)
• Entanglement harvesting in the presence of a reflecting boundary [7.030564717893124]
  We study the entanglement harvesting of inertial and uniformly accelerated detectors locally interacting with vacuum massless scalar fields. We find that the presence of the boundary generally degrades the harvested entanglement when two detectors are very close to the boundary. Remarkably, the parameter space of the detectors' separation and the magnitude of acceleration that allows entanglement harvesting to occur is enlarged due to the presence of the boundary.
  arXiv  Detail & Related papers  (2021-01-01T00:00:02Z)
• Many-Body Topological and Skin States without Open Boundaries [3.787008621816909]
  We show that many-body effects can induce analogs of robust states in place of actual physical boundaries. We demonstrate the emergence of topological chiral modes in a two-fermion hopping model without open boundaries. Our many-body skin states generalize directly in the thermodynamic limit.
  arXiv  Detail & Related papers  (2020-06-01T18:17:58Z)
• Exotic photonic molecules via Lennard-Jones-like potentials [48.7576911714538]
  We show a novel Lennard-Jones-like potential between photons coupled to the Rydberg states via electromagnetically induced transparency (EIT) This potential is achieved by tuning Rydberg states to a F"orster resonance with other Rydberg states. For a few-body problem, the multi-body interactions have a significant impact on the geometry of the molecular ground state.
  arXiv  Detail & Related papers  (2020-03-17T18:00:01Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.