https://doi.org/10.1140/epjc/s10052-024-12409-1
Regular Article - Theoretical Physics
Particle production by a relativistic semitransparent mirror of finite size and thickness
1
Department of Physics and Center for Theoretical Sciences, National Taiwan University, 10617, Taipei, Taiwan
2
LeCosPA, National Taiwan University, 10617, Taipei, Taiwan
3
Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University, 94305, Stanford, CA, USA
Received:
21
September
2023
Accepted:
29
December
2023
Published online:
18
January
2024
Production of massless scalar particles by a relativistic semitransparent mirror of finite transverse size and longitudinal thickness in (1+3)D flat spacetime is studied. The derived particle spectrum formula is applied to two specific trajectories. One is the gravitational collapse trajectory invoked in (1+1)D perfectly reflecting moving mirror literature to mimic Hawking radiation, and the other is the plasma mirror trajectory proposed to be realizable in future experiments. It is found that the finiteness of the transverse size leads to diffraction, while the nontrivial thickness amplifies the production rate. We also estimated the particle yield as 
in a 20-day data acquisition based on the parameters invoked in the proposed AnaBHEL experiment.
© The Author(s) 2024
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