Takato Mori's website
Inspire HEP arXiv Google Scholar Affiliation X (Formerly Twitter)
I am a theoretical physicist, particularly engaging in quantum gravity and quantum information. My primary interests include holography, black holes, entanglement, many-body physics, quantum information and foundations.
I currently work as an assistant professor in Department of Physics, College of Science at Rikkyo University in Tokyo, Japan.
#4326 (Bldg. No.4) Rikkyo University,
3-34-1 Nishi-ikebukuro, Toyoshima-ku, Tokyo
Japan
April 2025 - Present Assistant Professor, Institute of Theoretical Physics, Rikkyo University
June 2023 - March 2025 Postdoctoral Fellow, Perimeter Institute for Theoretical Physics
(Mentor: Beni Yoshida)
April 2023 - March 2025 Research Fellow of Japan Society for the Promotion of Science (JSPS Research Fellow), YITP, Kyoto University
April 2018 - March 2023 Ph.D. in Physics, the Graduate University for Advanced Studies, SOKENDAI,
High Energy Accelerator Research Organization (KEK)
(Supervisor: Satoshi Iso)
October 2021 - December 2021 Atom-type Fellow, Yukawa Institute for Theoretical Physics (YITP), Kyoto University
(Supervisor: Tadashi Takayanagi)
April 2014 - March 2018 BSc. in Physics, Nagoya University
For the full CV, click here.
My primary research interests include quantum gravity and quantum information, in particular, measurements and observers in holography and operational aspects of quantum and classical correlations in quantum circuits, many-body systems, and quantum field theories. I particularly enjoy collaborating with people in various fields including field theories, quantum matter, quantum information/communication/foundation/cryptography, and quantum cosmologists.
But my research interests have changed a lot since I was born. I was interested in phonetics in the study of linguistics when I was in a high school and undergraduate student. During my third year of BSc., I was interested in biophysics and quantum information. During my final year of BSc., I started to be illuminated by string theory. During my Ph.D., I was more attracted by interdisciplinary studies among quantum field theories, tensor networks, and AdS/CFT.
Mathematics for Physics 3 [Complex Analysis] (Spring 2025)
Exercises in Physics 1 [Mathematical Physics, Analytical Mechanics, Electromagnetism] (Spring 2025)
Exercises in Quantum Mechanics 1 (Spring 2025)
Mathematics for Physics 2 [Differential Equations and Special Functions] (Fall 2025)
Exercises in Quantum and Statistical Mechanics 2 (Fall 2025)
Exercises in Basic Mathematics [Linear Algebra, Calculus] (Fall 2025)
PSI START [A project supervisor in the summer internship program for undergraduates] (May 2024 - August 2024)
Please see the following list. Check also Inspire HEP, arXiv, and Google Scholar.
T. Mori, “Quantum correlation beyond entanglement: Holographic discord and multipartite generalizations,” arXiv:2506.02131 [hep-th]. Proposed bulk duals of classical correlation and quantum discord. Holographic discord is shown to be larger than holographic squashed entanglement. The gap, called the non-entanglement quantum correlation, is related to the Markov gap and undistillable entanglement, indicating non-bipartiteness of holographic states is generic. Efficiently computable boundary duals based on reflected entropy are also proposed and demonstrated with two-qubit states. Multipartite generalizations of these correlation measures are discussed.
Z. Li, T. Mori, and B. Yoshida, "Tripartite Haar random state has no bipartite entanglement," arXiv:2502.04437 [quant-ph]. Provided a rigorous quantum information theoretic proof regarding the distillable entanglement of tripartite Haar random states. Using the so-called ϵ-net construction and Levy’s lemma, the probability of sampling a tripartite pure state whose entanglement is distillable by local operation according to the Haar measure is suppressed double exponentially with respect to the number of qubits.
T. Mori and B. Yoshida, "Does connected wedge imply distillable entanglement?," arXiv:2411.03426 [hep-th]. Proposed gravity duals of one-shot distillable entanglement and entanglement of formation in holography and Haar random states. Explicit distillation protocols are provided and random/holographic states are conjectured to be NPT bound entangled at leading order.
V. Franken and T. Mori, "Horizon causality from holographic scattering in asymptotically dS₃," JHEP 12, 199 (2024) [arXiv:2410.09050]. Identified consistent causality on holographic screens in static patch holography of asymptotically de Sitter spacetimes through induced causality concept, hinting at temporal mapping between static patch holography and dS/CFT.
R.N. Das and T. Mori, "Krylov complexity of purification," arXiv:2408.00826 [hep-th]. Proposed Krylov complexity of purification (CoP) method for mixed states, conjecturing properties/inequalities between original complexity and CoPs. Applied to non-unitary dynamics and compared to Lloyd bound/holographic results.
T. Mori, "Entanglement structure in quantum many-body systems, field theories, and holography," arXiv:2308.09758 [hep-th]. Comprehensive review of entanglement in field theories/holography/tensor networks (Ph.D. thesis).
T. Mori and B. Yoshida, "Exploring causality in braneworld/cutoff holography via holographic scattering," JHEP 10, 104 (2023) [arXiv:2308.00739]. Generalized connected wedge theorem to AdS spacetimes with branes/cutoffs, explaining apparent superluminality through induced light cones and fictitious regions.
T. Mori, H. Manabe and H. Matsueda, "Entanglement distillation toward minimal bond cut surface in tensor networks," Phys. Rev. D 106, 086008 (2022) [arXiv:2205.06633]. Revealed bond-cut surface changes as entanglement distillation, showing minimal surfaces define closest states to maximally entangled states in generic tensor networks.
T. Kawamoto et al., "Holographic local operator quenches in BCFTs," JHEP 05, 060 (2022) [arXiv:2203.03851]. Established correspondence between boundary conformal field theories and gravity duals under local operator quenches.
S. Iso, T. Mori and K. Sakai, "Wilsonian Effective Action and Entanglement Entropy," Symmetry 13, 1221 (2021) [arXiv:2105.14834]. Developed framework for vacuum entanglement entropy in interacting QFTs, analytically deriving area laws through Wilsonian RG.
S. Iso, T. Mori and K. Sakai, "Non-Gaussianity of entanglement entropy and correlations of composite operators," Phys. Rev. D 103, 125019 (2021) [arXiv:2105.02598]. Summed propagator/vertex contributions to entanglement entropy via renormalized propagators in interacting QFTs.
S. Iso, T. Mori and K. Sakai, "Entanglement entropy in scalar field theory and ℤₘ gauge theory on Feynman diagrams," Phys. Rev. D 103, 105010 (2021) [arXiv:2103.05303]. Formulated nonperturbative calculation method for entanglement entropy, identifying new non-Gaussian vertex contributions.
T. Mori, "Proposal for Power/Data Transmission Lines Using Natural Spider Silk/Carbon Nanotube" (2015) [Award-winning paper]. Designed hybrid transmission wires combining spider silk and carbon nanotubes for simultaneous power/data transfer.
T. Mori, "Comparative Analysis of Vowels in Multiple Languages" (2015). Quantified vowel similarities across languages using formant frequency analysis in acoustic/articulatory phonetics.
Note: Authors are typically listed alphabetically in high energy physics and quantum information.
Please see my CV.
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