Harvesting correlations from BTZ black hole coupled to a Lorentz-violating vector field

• URL: http://arxiv.org/abs/2503.06404v2
• Date: Fri, 14 Mar 2025 11:44:38 GMT
• Title: Harvesting correlations from BTZ black hole coupled to a Lorentz-violating vector field
• Authors: Xiaofang Liu, Wentao Liu, Zhilong Liu, Jieci Wang,
• Abstract summary: Lorentz violation, as a quantum property of spacetime, may impose intrinsic constraints on the quantum information capacity encoded in spacetime.<n>Lorentz symmetry breaking expands the textitentanglement shadow region, further demonstrating its disruptive effect on quantum correlations.
• Score: 7.220823869619744
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In this paper, we investigate the effects of Lorentz violation on correlations harvesting, specifically focusing on the harvested entanglement and harvested mutual information between two Unruh-DeWitt detectors interacting with a quantum field in the Lorentz-violating BTZ black hole spacetime. Our findings reveal that Lorentz symmetry breaking has contrasting impacts on entanglement harvesting and mutual information harvesting in BTZ backgrounds: it enhances mutual information harvesting while suppressing entanglement harvesting. This phenomenon suggests that the increase in total correlations in Lorentz-violating vector field backgrounds with gravitational coupling is predominantly driven by classical components, with quantum correlations contributing less to the overall mutual information. These results indicate that Lorentz violation, as a quantum property of spacetime, may impose intrinsic constraints on the quantum information capacity encoded in spacetime due to competition among quantum degrees of freedom for resources. Furthermore, Lorentz symmetry breaking expands the \textit{entanglement shadow} region, further demonstrating its disruptive effect on quantum correlations.

Related papers

• Quantumness and entropic uncertainty for a pair of static Unruh-DeWitt detectors [5.915563767505157]
  We investigate a pair of detectors operating in Minkowski space-time and analyze the characteristics of various quantum resources within this framework.<n>We focus on examining the properties of Bell nonlocality, quantum coherence, the nonlocal advantage of quantum coherence (NAQC) and measured uncertainty in relation to the energy ratio and the distance between the detectors.
  arXiv  Detail & Related papers  (2025-03-06T09:12:29Z)
• Lorentz violation alleviates gravitationally induced entanglement degradation [5.204468823134696]
  We study the effects of Lorentz violation on quantum entanglement through a black hole spacetime that is coupled with a Lorentz-violating field.<n>We find that the coupling between spacetime and the Lorentz-violating vector field alleviates gravity-induced entanglement degradation.<n>This suggests that investigating Lorentz violation at astrophysical scales requires low-frequency detectors.
  arXiv  Detail & Related papers  (2024-10-29T03:05:03Z)
• Transient concurrence for copropagating entangled bosons and fermions [0.0]
  We investigate how entanglement affects the evolution of the particles using a modified version of the shutter quantum model. We derive a transient concurrence to momentum-space entanglement, and show that modulates the interference correlation of the joint probability density. We derive analytical expressions that reveal a direct connection between entanglement and the characteristic oscillations of the Hanbury-Brown and Twiss effect.
  arXiv  Detail & Related papers  (2024-10-15T22:42:29Z)
• Cavity Control of Topological Qubits: Fusion Rule, Anyon Braiding and Majorana-Schrödinger Cat States [39.58317527488534]
  We investigate the impact of introducing a local cavity within the center of a topological chain. This cavity induces a scissor-like effect that bisects the chain, liberating Majorana zero modes (MZMs) within the bulk. By leveraging the symmetry properties of fermion modes within a two-site cavity, we propose a novel method for generating MZM-polariton Schr"odinger cat states.
  arXiv  Detail & Related papers  (2024-09-06T18:00:00Z)
• Attractive-repulsive interaction in coupled quantum oscillators [14.37149160708975]
  We find an interesting symmetry-breaking transition from quantum limit cycle oscillation to quantum inhomogeneous steady state. This transition is contrary to the previously known symmetry-breaking transition from quantum homogeneous to inhomogeneous steady state. Remarkably, we find the generation of entanglement associated with the symmetry-breaking transition that has no analogue in the classical domain.
  arXiv  Detail & Related papers  (2024-08-23T10:45:19Z)
• Coherence interpretation of the noninterfering Sagnac-based quantum correlation [0.0]
  Bell inequality violation is a quantitative measurement tool for quantum entanglement. Here, the role of coincidence detection is coherently investigated for the nonlocal correlation in a simple polarization-basis selective non-interferometric system.
  arXiv  Detail & Related papers  (2022-06-10T21:16:24Z)
• Quantum time dilation in a gravitational field [39.58317527488534]
  We investigate how the superposition principle affects the gravitational time dilation observed by a simple clock. We show that the emission rate of an atom prepared in a coherent superposition of separated wave packets in a gravitational field is different from the emission rate of an atom in a classical mixture of these packets.
  arXiv  Detail & Related papers  (2022-04-22T10:02:21Z)
• Effect of Emitters on Quantum State Transfer in Coupled Cavity Arrays [48.06402199083057]
  We study the effects of atoms in cavities which can absorb and emit photons as they propagate down the array. Our model is equivalent to previously examined spin chains in the one-excitation sector and in the absence of emitters.
  arXiv  Detail & Related papers  (2021-12-10T18:52:07Z)
• Genuine multipartite entanglement and quantum coherence in an electron-positron system: Relativistic covariance [117.44028458220427]
  We analyze the behavior of both genuine multipartite entanglement and quantum coherence under Lorentz boosts. A given combination of these quantum resources is shown to form a Lorentz invariant.
  arXiv  Detail & Related papers  (2021-11-26T17:22:59Z)
• Equilibrium and nonequilibrium quantum correlations between two detectors in curved space time [9.793615002494237]
  We show the quantum information of two qubits is encoded in the space time structure. In nonequilibrium case, the nonequilibrium can also contribute to the correlations.
  arXiv  Detail & Related papers  (2021-08-24T00:33:57Z)
• Testing the equivalence principle and discreteness of spacetime through the $t^3$ gravitational phase with quantum information technology [0.0]
  We propose a new thought experiment, based on present-day Quantum Information Technologies, to measure quantum gravitational effects. The technique here proposed promise to reveal gravitational field fluctuations from the analysis of the noise associated to an ideal output of a measurement process of a quantum system. We find that this setup, built with massive mesoscopic particles, can potentially reveal the $t3$ gravitational phase term and thus, the BMV effect.
  arXiv  Detail & Related papers  (2021-08-19T02:10:13Z)
• Chemical tuning of spin clock transitions in molecular monomers based on nuclear spin-free Ni(II) [52.259804540075514]
  We report the existence of a sizeable quantum tunnelling splitting between the two lowest electronic spin levels of mononuclear Ni complexes. The level anti-crossing, or magnetic clock transition, associated with this gap has been directly monitored by heat capacity experiments. The comparison of these results with those obtained for a Co derivative, for which tunnelling is forbidden by symmetry, shows that the clock transition leads to an effective suppression of intermolecular spin-spin interactions.
  arXiv  Detail & Related papers  (2021-03-04T13:31:40Z)
• Probing the coherence of solid-state qubits at avoided crossings [51.805457601192614]
  We study the quantum dynamics of paramagnetic defects interacting with a nuclear spin bath at avoided crossings. The proposed theoretical approach paves the way to designing the coherence properties of spin qubits from first principles.
  arXiv  Detail & Related papers  (2020-10-21T15:37:59Z)
• Quantum Temporal Superposition: the case of QFT [0.0]
  We consider what happens when a quantum-controlled superposition of detectors at different space-time points is used to probe the correlations of the field. We show that, due to quantum interference effects, two detectors can gain information on field correlations which would not be otherwise accessible.
  arXiv  Detail & Related papers  (2020-02-14T19:00:00Z)

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.