Tan Van Vu

Aug 28, 2024 | link.aps.org | Tan Van Vu |Kitashirakawa Oiwakecho |Tomotaka Kuwahara |Japan Science

Accurate quantum computing relies on the precision of quantum gates. However, quantum gates in practice are generally affected by dissipative environments, which can significantly reduce their fidelity. In this paper, we elucidate the fundamental relations between the average fidelity of generic quantum gates and the dissipation that occurs during the computing processes.

Mar 21, 2024 | nature.com | Tomotaka Kuwahara |Tan Van Vu

AbstractThe speed limit of information propagation is one of the most fundamental features in non-equilibrium physics. The region of information propagation by finite-time dynamics is approximately restricted inside the effective light cone that is formulated by the Lieb-Robinson bound. To date, extensive studies have been conducted to identify the shape of effective light cones in most experimentally relevant many-body systems.