Physically accessible and inaccessible quantum correlations of Dirac fields in Schwarzschild spacetime

Elghaayda, Samira; Ali, Asad; Al-Kuwari, Saif; Mansour, Mostafa

doi:10.1016/j.physleta.2024.129915

Physics Letters A

2024

DOI: 10.1016/j.physleta.2024.129915

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Physically accessible and inaccessible quantum correlations of Dirac fields in Schwarzschild spacetime

Samira Elghaayda,

Asad Ali,

Saif Al-Kuwari

et al.

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2024

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Tripartite measurement uncertainty in Schwarzschild space-time

Dolatkhah,

Czerwinski,

Ali

et al. 2024

Eur. Phys. J. C

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The effect of Hawking radiation on tripartite measurement uncertainty in a Schwarzschild black hole background is analyzed in this study. Two scenarios are examined. In the first, quantum memory particles approach a Schwarzschild black hole and are positioned near the event horizon, while the particle being measured remains in the asymptotically flat region. In the second scenario, the measured particle moves toward the black hole, and the quantum memories stay in the asymptotically flat region. This study considers two initial quantum states, namely GHZ and W states. Our findings reveal that in both cases, measurement uncertainty increases steadily with rising Hawking temperature. When comparing the GHZ and W states, the GHZ state initially exhibits lower measurement uncertainty at low Hawking temperatures than the W state, indicating greater resilience to Hawking radiation. Additionally, when the quantum memories remain in the asymptotically flat region while the measured particle falls toward the black hole, the uncertainties for GHZ and W states do not align at high temperatures. The GHZ state consistently demonstrates lower measurement uncertainty, showcasing its superior robustness against Hawking radiation.

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Tripartite measurement uncertainty in Schwarzschild space-time

Dolatkhah,

Czerwinski,

Ali

et al. 2024

Eur. Phys. J. C

View full text Add to dashboard Cite

show abstract

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Physically accessible and inaccessible quantum correlations of Dirac fields in Schwarzschild spacetime

Cited by 1 publication

References 89 publications

Tripartite measurement uncertainty in Schwarzschild space-time

Tripartite measurement uncertainty in Schwarzschild space-time

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