From the 1 of 15 linked papers with an AI index.
15 papers
Quantum Information Decoupling Beyond Finite Dimensions
Hayata Yamasaki
The paper develops a decoupling framework that works for arbitrary separable, possibly infinite‑dimensional quantum systems, providing error bounds and protocols—including an infin…
Degeneracy Cutting: A Local and Efficient Post-Processing for Belief Propagation Decoding of Quantum Low-Density Parity-Check Codes
Kento Tsubouchi, Hayata Yamasaki, Shiro Tamiya
Quantum low-density parity-check (qLDPC) codes are promising for realizing scalable fault-tolerant quantum computation due to their potential for low-overhead protocols. A common a…
Lean-Quantum: Toward AI-Assisted Formalization of Quantum Information
Kazumi Kasaura, Kei Tsukamoto, Kento Mori +6
Quantum information theory is built on entropic quantities; among them, the sandwiched Rényi relative entropy is a fundamental divergence with various applications, and its data p…
Quantum State Preparation via Free Binary Decision Diagram
Yu Tanaka, Hayata Yamasaki, Mio Murao
Quantum state preparation (QSP) is a fundamental task in quantum computation to prepare a quantum state for a given classical description of the quantum state. The classical descri…
Rethinking quantum information in gravity and fields
Kanato Goto, Yuta Hamada, Kohtaro Kato +6
This paper presents a curated selection of research questions at the intersection of quantum gravity and quantum information, chosen to highlight issues that we regard as particula…
Entanglement cost for infinite-dimensional physical systems
Hayata Yamasaki, Kohdai Kuroiwa, Patrick Hayden +1
We prove that the entanglement cost equals the regularized entanglement of formation for any infinite-dimensional quantum state with finite quantum entropy on at least on…