Detuning-modulated composite pulses for high-fidelity robust quantum control

Autor:	Kyoseva, Elica, Greener, Hadar, Suchowski, Haim
Rok vydání:	2018
Předmět:	Quantum Physics
Zdroj:	Phys. Rev. A 100, 032333 (2019)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.100.032333
Popis:	We introduce a novel control method for robust quantum information processing suited for quantum integrated photonics. We utilize off-resonant detunings as control parameters to derive a new family of composite pulses for high-fidelity population transfer within the quantum error threshold. By design, our detuning-modulated N-piece composite sequences correct for any control inaccuracies including pulse strength, duration, resonance offsets errors, Stark shifts, unwanted frequency chirp, etc. We reveal the symmetries of the pulses that allow for straightforward scaling with minimal pulse overhead for an arbitrary N. Furthermore, we implement the composite solutions in coupled waveguides allowing a complete light transfer that is robust to fabrication errors. Comment: 5 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1811.02623 Zobrazit plný text záznamu View this record from Arxiv