All Outputs (3)

A little excitement across the horizon (2022)
Journal Article
Ng, K. K., Zhang, C., Louko, J., & Mann, R. B. (2022). A little excitement across the horizon. New Journal of Physics, 24(10), Article 103018. https://doi.org/10.1088/1367-2630/ac9547

We analyse numerically the transitions in an Unruh-DeWitt detector, coupled linearly to a massless scalar field, in radial infall in (3 + 1)-dimensional Schwarzschild spacetime. In the Hartle-Hawking and Unruh states, the transition probability attai... Read More about A little excitement across the horizon.

The cost of building a wall for a fermion (2022)
Journal Article
Wan Mokhtar, W. M. H., & Louko, J. (2022). The cost of building a wall for a fermion. Journal of High Energy Physics, 2022(8), Article 69. https://doi.org/10.1007/JHEP08%282022%29069

We analyse the energy cost of building or demolishing a wall for a massless Dirac field in (1+1)-dimensional Minkowski spacetime and the response of an Unruh-DeWitt particle detector to the generated radiation. For any smoothly-evolving wall, both th... Read More about The cost of building a wall for a fermion.

Quantum kicks near a Cauchy horizon (2022)
Journal Article
Juárez-Aubry, B. A., & Louko, J. (2022). Quantum kicks near a Cauchy horizon. AVS Quantum Science, 4(1), Article 013201. https://doi.org/10.1116/5.0073373

We analyze a quantum observer who falls geodesically toward the Cauchy horizon of a (1 + 1)-dimensional eternal black hole spacetime with the global structure of the non-extremal Reissner-Nordström solution. The observer interacts with a massless sca... Read More about Quantum kicks near a Cauchy horizon.