Lorentz-invariant topological structures of the electromagnetic field in a Fabry-Perot resonant slit grating
Marina Yakovleva, Jean-Luc Pelouard, and Fabrice Pardo
Phys. Rev. A 106, L060201 (2022) - Published 7 December, 2022
The authors construct an absolute (Lorentz-invariant) topology of the electromagnetic field that transcends the boundary between space and time. For a resonant slit grating, they observe null straight lines in the plane wave region, rounded rhombuses in the interference region inside the grating, and a fractal pattern in the evanescent field region where the light funneling occurs.
Space-time-resolved quantum field approach to Klein-tunneling dynamics across a finite barrier
M. Alkhateeb and A. Matzkin
Phys. Rev. A 106, L060202 (2022) - Published 19 December, 2022
Klein tunneling takes place when a particle scatters on a supercritical barrier that is creating particle antiparticle pairs. The authors, using a space-time resolved relativistic quantum field theory approach, show that the transmitted particle does not tunnel through the barrier but is instead produced by modulations in the pair creation rate.
Automated generation of arbitrarily many Kochen-Specker and other contextual sets in odd-dimensional Hilbert spaces
Mladen Pavičić and Norman D. Megill
Phys. Rev. A 106, L060203 (2022) - Published 27 December, 2022
In contrast to classical computations with predetermined outputs, quantum computations are characterized by measured outputs that are described by contextual sets. Here, the authors present algorithms for automated generation of contextual sets from simple vector components in odd-dimensional Hilbert spaces.












