Quantum Characteristics Near Event Horizons
- URL: http://arxiv.org/abs/2401.12028v1
- Date: Mon, 22 Jan 2024 15:15:18 GMT
- Title: Quantum Characteristics Near Event Horizons
- Authors: A. Ali, S. Al-Kuwari, M. Ghominejad, M. T. Rahim, S. Haddadi
- Abstract summary: We investigate the genuine multipartite entanglement, global entanglement, and quantum coherence among different configurations of a penta-partite system.
We evaluate first-order coherence, concurrence fill, and global concurrence under varying Hawking temperature and Dirac particle mode frequency.
Our findings suggest reevaluating entanglement polygon inequalities and concurrence fill for applicability in flat and curved space-times.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We investigate the genuine multipartite entanglement, global entanglement,
and quantum coherence among different configurations of a penta-partite system
involving particles inside and outside the event horizon of a Schwarzschild
black hole. We consider and analyze different scenarios based on how many
particles are accessible. In each scenario, we evaluate first-order coherence,
concurrence fill, and global concurrence under varying Hawking temperature and
Dirac particle mode frequency. For the fully accessible scenario with all
particles outside the event horizon, the measures exhibit non-monotonic
behavior with a discernible trade-off. In the partially accessible scenarios
with one particle inside the event horizon, monotonic variations and clear
trade-offs are observed. Finally, in the scenario when two particles are inside
the event horizon, concurrence fill becomes complex, attributed to the
violation of the entanglement polygon inequality in curved space-time. This
result reveals intricate relationships between entanglement and coherence
around the event horizon of Schwarzchild black holes. Our findings suggest
reevaluating entanglement polygon inequalities and concurrence fill for
applicability in flat and curved space-times. These insights contribute to our
understanding of quantum information dynamics and gravitational impacts on
entanglement in extreme environments.
Related papers
- Partial confinement in a quantum-link simulator [25.949731736282295]
We show that the spin-1 quantum link model provides an excellent platform for exploring partial confinement.
We conduct a comprehensive investigation of the physics emerging from partial confinement in both the context of equilibrium and non-equilibrium dynamics.
Our work offers a simple and feasible routine for the study of confinement-related physics in the state-of-the-art artificial quantum systems.
arXiv Detail & Related papers (2024-04-28T06:55:08Z) - Quantum Chaos on Edge [36.136619420474766]
We identify two different classes: the near edge physics of sparse'' and the near edge of dense'' chaotic systems.
The distinction lies in the ratio between the number of a system's random parameters and its Hilbert space dimension.
While the two families share identical spectral correlations at energy scales comparable to the level spacing, the density of states and its fluctuations near the edge are different.
arXiv Detail & Related papers (2024-03-20T11:31:51Z) - Genuine N-partite entanglement in Schwarzschild-de Sitter black hole spacetime [2.2161679312767553]
We study genuine N-partite entanglement of massless Dirac fields in the Schwarzschild-de Sitter spacetime.
It is shown that genuine N-partite entanglement monotonically decreases with the decrease of the mass of the black hole.
It is interesting to note that genuine N-partite entanglement is a non-monotonic function of the cosmological constant.
arXiv Detail & Related papers (2024-03-18T04:50:42Z) - Quantum properties of fermionic fields in multi-event horizon spacetime [0.0]
We investigate the properties of quantum entanglement and mutual information in the multi-event horizon Schwarzschild-de Sitter (SdS) spacetime for massless Dirac fields.
We obtain the expression for the evolutions of the quantum state near the black hole event horizon (BEH) and cosmological event horizon (CEH) in the SdS spacetime.
arXiv Detail & Related papers (2023-11-13T03:17:36Z) - Signatures of Rotating Black Holes in Quantum Superposition [0.09118034517251884]
We show that a two-level system interacting with a quantum field residing in the spacetime exhibits resonant peaks in its response at certain values of the superposed masses.
Our results suggest that deeper insights into quantum-gravitational phenomena may be accessible via tools in relativistic quantum information and curved spacetime quantum field theory.
arXiv Detail & Related papers (2023-10-16T22:24:21Z) - Gravity-induced entanglement between two massive microscopic particles in curved spacetime: I.The Schwarzschild background [2.915799083273604]
The gravitational field within curved spacetime can induce observable entanglement between particle pairs in both scenarios.
This approach establishes a more pronounced and extensive manifestation of the quantum influences of gravity.
These experiments hold immense advantages and implications for the detection of quantum gravity.
arXiv Detail & Related papers (2023-08-31T08:16:43Z) - The strongly driven Fermi polaron [49.81410781350196]
Quasiparticles are emergent excitations of matter that underlie much of our understanding of quantum many-body systems.
We take advantage of the clean setting of homogeneous quantum gases and fast radio-frequency control to manipulate Fermi polarons.
We measure the decay rate and the quasiparticle residue of the driven polaron from the Rabi oscillations between the two internal states.
arXiv Detail & Related papers (2023-08-10T17:59:51Z) - Observation of microscopic confinement dynamics by a tunable topological
$\theta$-angle [12.311760383676763]
We report on the experimental realization of a tunable topological $theta$-angle in a Bose--Hubbard gauge-theory quantum simulator.
We demonstrate the rich physics due to this angle by the direct observation of the confinement--deconfinement transition of $(1+1)$-dimensional quantum electrodynamics.
arXiv Detail & Related papers (2023-06-20T18:00:02Z) - Fermion production at the boundary of an expanding universe: a cold-atom
gravitational analogue [68.8204255655161]
We study the phenomenon of cosmological particle production of Dirac fermions in a Friedman-Robertson-Walker spacetime.
We present a scheme for the quantum simulation of this gravitational analogue by means of ultra-cold atoms in Raman optical lattices.
arXiv Detail & Related papers (2022-12-02T18:28:23Z) - Quantum vacuum excitation of a quasi-normal mode in an analog model of
black hole spacetime [19.767470853445776]
We use a driven-dissipative quantum fluid of microcavity polaritons as an analog model of a quantum field theory on a black-hole spacetime.
We show that, in addition to the Hawking effect at the sonic horizon, quantum fluctuations may result in a sizeable stationary excitation of a quasi-normal mode of the field theory.
arXiv Detail & Related papers (2021-10-27T14:16:12Z) - Probing the edge between integrability and quantum chaos in interacting
few-atom systems [0.0]
We propose a minimum model for chaos that can be experimentally realized with cold atoms trapped in one-dimensional multi-well potentials.
We show that the competition between the particle interactions and the periodic structure of the confining potential reveals subtle indications of quantum chaos for 3 particles, while for 4 particles stronger signatures are seen.
arXiv Detail & Related papers (2021-04-27T01:40:02Z)
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.