Bonn 2025 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 63: Poster – Quantum Information (joint session QI/Q)

Q 63.47: Poster

Donnerstag, 13. März 2025, 17:00–19:00, Tent

Pulse shaping strategies: smooth sine-based pulses for enhanced stability and super power broadening with two tunable types of pulses — •Ivo Mihov and Nikolay Vitanov — Center for Quantum Technologies, Department of Physics, Sofia University, 5 James Bourchier blvd, 1164 Sofia, Bulgaria

This study explores two approaches to pulse shaping for qubit dynamics. First, smooth sine pulses are investigated as alternatives to rectangular pulses, minimizing power broadening, reducing sidebands, and avoiding truncation issues. Two analytic solutions, based on Weber’s parabolic cylinder functions and a simplified asymptotic approach, are derived and validated on IBM Quantum processors, confirming the predicted effects.

In contrast, the study also examines two novel pulse families designed to enhance power broadening, creating "super power broadening." These pulse shapes – quadratic and even-power pulses – amplify non-adiabaticity at the pulse edges, enabling more sensitive interactions for applications such as EIT, quantum tomography, and nonlinear optics. These pulse shaping strategies, tested on IBM Quantum processors, offer new tools for optimizing quantum state manipulation, broadening interaction frequencies, and improving spectroscopy techniques.

Keywords: power broadening; pulse shaping; non-resonant effects; quantum control