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Q: Fachverband Quantenoptik und Photonik

Q 35: Quantum Computing and Simulation IV

Q 35.3: Vortrag

Mittwoch, 4. März 2026, 15:15–15:30, P 10

Bosonic QEC: (Squeezed) Cats and Vacua — •Florian Spieß — University of Mainz

Bosonic codes offer a promising route towards resource efficient and scalable quantum error correcting architectures, creating a pathway for fault tolerant quantum computation. An interesting feature and difficulty of some experimentally relevant codes, such as (squeezed) cat-codes, is their approximate nature, meaning they only fulfill the Knill-Laflamme conditions in certain limits of physical parameters.

In this talk we investigate the performance and benefits of squeezed vacuum, fock and cat codes. For the most dominant physical error process in photonic systems, that is photon loss, we analyze how to quantify if such newer encodings, involving squeezing, can help compared to other known bosonic error correcting schemes.

Keywords: Quantum Error Correction; Bosonic Quantum Error Correction; Approximate Quantum Error Correction; Cat Codes; Squeezed Vacuum Codes