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arxiv: 1807.03968 · v1 · pith:2XNKPQUInew · submitted 2018-07-11 · 🌀 gr-qc

Casimir Effect and Free Fall in a Schwarzschild Black Hole

Francesco Sorge This is my paper
classification 🌀 gr-qc
keywords casimirspacetimeenergyschwarzschildvacuumactionamountapparatus
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Scalar field vacuum energy and particle creation in a 3D Casimir apparatus, freely falling in the Schwarzschild spacetime, are considered in the reference frame of a comoving observer. Following Schwinger's proper time approach, Casimir energy is evaluated from the effective action, resulting in a small correction to the flat spacetime case. Besides, a tiny amount of quanta excited out from the vacuum is found. Both effects are discussed, drawing attention to the role of the underlying spacetime dimensionality.

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    Calculates renormalized Casimir free energy and thermodynamic quantities for a scalar field in a wormhole spacetime at finite temperature, finding geometry-independent thermal corrections in the comoving frame.