Ganfornina Andrades, AntonioVázquez Lozano, Juan EnriqueLiberal Olleta, Íñigo2025-02-132025-02-132024-12-26Ganfornina-Andrades, A., Vázquez-Lozano J. E., Liberal I. (2024) Quantum vacuum amplification in time-varying media with arbitrary temporal profiles. Physical Review Research, 6(4), 1-6. https://doi.org/10.1103/PhysRevResearch.6.043320.2643-156410.1103/PhysRevResearch.6.043320https://academica-e.unavarra.es/handle/2454/53397In this work we address quantum vacuum amplification effects in time-varying media with an arbitrary time-modulation profile. To this end, we propose a theoretical formalism based on the concept of conjugated harmonic oscillators, evaluating the impact on the transition time in temporal boundaries, shedding light into the practical requirements to observe quantum effects at them. In addition, we find nontrivial effects in pulsed modulations, where the swiftest and strongest modulation does not lead to the highest photon production. Thus, our results provide key insights for the design of temporal modulation sequences to enhance quantum phenomena.application/pdfengPublished by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.MetamaterialsNanophotonicsQuantum opticsinfo:eu-repo/semantics/article2025-02-13info:eu-repo/semantics/openAccess