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May 26 – 31, 2024
Western University
America/Toronto timezone
Welcome to the 2024 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2024!

(G*) Engineering non-Gaussian bosonic gate by quantum signal processing

May 27, 2024, 11:15 AM
15m
SSC Rm 2020 (cap. 80) (Social Science Centre, Western U.)

SSC Rm 2020 (cap. 80)

Social Science Centre, Western U.

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle) Division for Quantum Information / Division de l'information quantique (DQI / DIQ) (DQI) M1-6 Quantum System Engineering and Control | Ingénierie et contrôle des systèmes quantiques (DIQ)

Speaker

Pak Tik Fong (Simon Fraser University)

Description

Non-Gaussian operations are essential for most bosonic quantum technologies. Yet, realizable non-Gaussian operations are rather limited in type and generally suffer from accuracy-duration tradeoffs. In this work, we propose to use quantum signal processing to engineer non-Gaussian operations. For systems dispersively coupled to an auxiliary qubit, our scheme can generate a new type of non-linear phase gate. Such a gate is an extension of the selective number-dependent arbitrary phase (SNAP) gate, but an extremely high accuracy can be achieved within a reduced, fixed, excitation-independent interaction time. Our versatile formalism can also engineer operations for a variety of tasks, e.g. processing rotational symmetric codes, entangling qudits, deterministically generating multi-component cat states, and converting entanglement from continuous- to discrete-variable.

Keyword-1 non-Gaussian gate
Keyword-2 quantum signal processing
Keyword-3 hybrid quantum system

Primary author

Pak Tik Fong (Simon Fraser University)

Co-author

Hoi-Kwan Lau (Simon Fraser University)

Presentation materials

There are no materials yet.