Efficient quantum control of Boson pair creation

Abstract Applying the computational quantum field theory (CQFT), this study pioneers the implementation of oscillating Gaussian potential well as a tunable external field for manipulating boson pair creation from the vacuum. The potential well width crucially control the boson pair creation via photon resonance transition. Expanding of the width can lead to a shift in the resonance transition mode from double to single transition channels, governing two interesting quantum regimes: narrow potential well widths induce dual-channel transitions with spectral splitting (characteristic of the Autler–Townes effect), while wide width yields monochromatic single-peaks with high spectral purity. Besides, energy spectral peaks exhibit a quantitative correlation with well frequency, enabling targeted boson population modulation. Furthermore, steeper-edged super-Gaussian well enhance boson yield and broaden energy spectra compared to Gaussian potential well. Parametric control of oscillating Gaussian-type wells (via width/shape modulation) establishes a quantum pair-creation paradigm, while their selective tunability enables fundamental explorations in vacuum physics and experimental design.