Ryuji Takagi

Associate Professor

University of Tokyo

Japan

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Ryuji Takagi is an Associate Professor at The University of Tokyo, Japan. His research focuses on quantum information theory, particularly in areas such as quantum dynamic programming, quantum coherence, and resource theories. His recent publications explore advanced topics including black box work extraction, dense coding with quantum memory, and the operational advantages of quantum resources.

Articles (22)

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2025

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2021

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2021

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2021

Collaborators (4)

Shintaro Minagawa

Aix-Marseille University

FRANCE

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Hayata Yamasaki

The Univeristy of Tokyo

JAPAN

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Mile Gu

National Research Foundation Fellow and Assistant Professor

Nanyang Technological University (NTU)

SINGAPORE

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Giulia Ferrini

Chalmers tekniska högskola

SWEDEN

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Ryuji Takagi

Research Interests

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About

Articles (22)

Quantum Dynamic Programming

Gibbs-Preserving Operations Requiring Infinite Amount of Quantum Coherence

Bridging Magic and Non-Gaussian Resources via Gottesman-Kitaev-Preskill Encoding

Virtual Quantum Resource Distillation

Virtual quantum resource distillation: General framework and applications

When quantum memory is useful for dense coding

Arbitrary Amplification of Quantum Coherence in Asymptotic and Catalytic Transformation

Every Quantum Helps: Operational Advantage of Quantum Resources beyond Convexity

Robustness- and weight-based resource measures without convexity restriction: Multicopy witness and operational advantage in static and dynamical quantum resource theories

Black Box Work Extraction and Composite Hypothesis Testing

Mixed-state additivity properties of magic monotones based on quantum relative entropies for single-qubit states and beyond

Universal Sampling Lower Bounds for Quantum Error Mitigation

Fundamental limits of quantum error mitigation

Correlation in Catalysts Enables Arbitrary Manipulation of Quantum Coherence

One-Shot Yield-Cost Relations in General Quantum Resource Theories

One-Shot Yield-Cost Relations in General Quantum Resource Theories

Optimal resource cost for error mitigation

Operational applications of the diamond norm and related measures in quantifying the non-physicality of quantum maps

One-Shot Manipulation of Dynamical Quantum Resources

One-Shot Manipulation of Dynamical Quantum Resources

Fundamental limitations on distillation of quantum channel resources

Framework for resource quantification in infinite-dimensional general probabilistic theories

Collaborators (4)

Shintaro Minagawa

Hayata Yamasaki

Mile Gu

Giulia Ferrini

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