Okuyama Kazumi
Academic Assembly School of Science and Technology Institute of Science
Faculty of Science Department of Science Course of Physics
Professor
Researcher Information
Research Keyword
- String Theory, quantum gravity
Field Of Study
TEL
- +81-263-2461
Mail Address
- kazumi★azusa.shinshu-u.ac.jp
Career
Research activity information
Paper
- Holographic tensor network for double-scaled SYK
Kazumi Okuyama
arXiv:2503.23003, 01 Apr. 2025, Not invited
Lead
- Non-perturbative corrections in the semi-classical limit of double-scaled SYK
Kazumi Okuyama
arXiv:2501.15501, 28 Jan. 2025, Not invited
Lead - Baby universe operators in the ETH matrix model of double-scaled SYK
Kazumi Okuyama
Journal of High Energy Physics, 2024(10), 249, 31 Oct. 2024, Refereed, Not invited
Lead, Last, Corresponding - More on doubled Hilbert space in double-scaled SYK
Kazumi Okuyama
Physics Letters B, 855, 138858, 09 Jul. 2024, Refereed, Not invited
Lead - Solvable limit of ETH matrix model for double-scaled SYK
Kazumi Okuyama, Takao Suyama
Journal of High Energy Physics, 2024(04), 094, 17 Apr. 2024, Refereed, Not invited
Lead, Last, Corresponding - Doubled Hilbert space in double-scaled SYK
Kazumi Okuyama
Journal of High Energy Physics, 2024(04), 091, 17 Apr. 2024, Refereed, Not invited
Lead - Negativity and its capacity in JT gravity
Kazumi Okuyama, Takeshi Tachibana
Journal of High Energy Physics, 2024(02), 183, 23 Feb. 2024, Refereed, Not invited - Matter correlators through a wormhole in double-scaled SYK
Kazumi Okuyama
Journal of High Energy Physics, 2024(02), 147, 21 Feb. 2024, Refereed, Not invited
Lead, Last, Corresponding - Discrete analogue of the Weil-Petersson volume in double scaled SYK
Kazumi Okuyama
Journal of High Energy Physics, 2023(09), 133, 20 Sep. 2023, Refereed, Not invited
Lead - End of the world brane in double scaled SYK
Kazumi Okuyama
Journal of High Energy Physics, 2023(08), 053, 11 Aug. 2023, Refereed, Not invited
Lead, Last, Corresponding - Late time behavior of n-point spectral form factors in Airy and JT gravities
Takanori Anegawa, Norihiro Iizuka, Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2023(07), 047, 06 Jul. 2023, Refereed, Not invited - High temperature expansion of double scaled SYK
Kazumi Okuyama
Physics Letters B, 843, 138036, 20 Jun. 2023, Refereed, Not invited
Lead, Last, Corresponding - Correlators of double scaled SYK at one-loop
Kazumi Okuyama, Kenta Suzuki
Journal of High Energy Physics, 2023(05), 117, 15 May 2023, Refereed, Not invited - Spectral form factor in the τ-scaling limit
Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2023(04), 123, 26 Apr. 2023, Refereed, Not invited - Hartle-Hawking wavefunction in double scaled SYK
Kazumi Okuyama
Journal of High Energy Physics, 2023(03), 152, 21 Mar. 2023, Refereed, Not invited
Lead, Last, Corresponding - Large N expansion of an integrated correlator in N=4 SYM
Yasuyuki Hatsuda, Kazumi Okuyama
Journal of High Energy Physics, 2022(11), 086, 15 Nov. 2022, Refereed, Not invited - 't Hooft expansion of SO(N) and Sp(N) N=4 SYM revisited
Kazumi Okuyama
Journal of High Energy Physics, 2022(09), 064, 08 Sep. 2022, Refereed, Not invited
Lead, Last, Corresponding - Page curve from dynamical branes in JT gravity
Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2022(02), 087, 11 Feb. 2022, Refereed, Not invited - A proof of loop equations in 2d topological gravity
Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2021(10), 107, 14 Oct. 2021, Refereed, Not invited - FZZT branes in JT gravity and topological gravity
Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2021(09), 191, 28 Sep. 2021, Refereed, Not invited - Capacity of entanglement in random pure state
Kazumi Okuyama
Physics Letters B, 820, 136600, 24 Aug. 2021, Refereed, Not invited
Lead - 't Hooft expansion of multi-boundary correlators in 2D topological gravity
Kazumi Okuyama, Kazuhiro Sakai
Progress of Theoretical and Experimental Physics, 2021(8), 083B03, 14 Jul. 2021, Refereed, Not invited - Genus expansion of open free energy in 2d topological gravity
Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2021(03), 217, 23 Mar. 2021, Refereed - Quenched free energy from spacetime D-branes
Kazumi Okuyama
Journal of High Energy Physics, 2021(03), 073, 05 Mar. 2021, Refereed - Quenched free energy in random matrix model
Kazumi Okuyama
Journal of High Energy Physics, 2020(12), 080, 11 Dec. 2020, Refereed - JT supergravity and Brezin-Gross-Witten tau-function
Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2020(10), 160, 26 Oct. 2020, Refereed - Multi-boundary correlators in JT gravity
Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2020(08), 126, 25 Aug. 2020, Refereed - Replica symmetry breaking in random matrix model: a toy model of wormhole networks
Kazumi Okuyama
Physics Letters B, 803, 135280, 07 Feb. 2020, Refereed - JT gravity, KdV equations and macroscopic loop operators
Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2020(01), 156, 24 Jan. 2020, Refereed - Holomorphic anomaly of 2d Yang-Mills theory on a torus revisited
Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2019(08), 025, 06 Aug. 2019, Refereed - Eigenvalue instantons in the spectral form factor of random matrix model
Kazumi Okuyama
Journal of High Energy Physics, 2019(03), 147, 25 Mar. 2019, Refereed
- Spectral form factor and semi-circle law in the time direction
Kazumi Okuyama
Journal of High Energy Physics, 2019(02), 161, 25 Feb. 2019, Refereed - Connected correlator of 1/2 BPS Wilson loops in N=4 SYM
Kazumi Okuyama
Journal of High Energy Physics, 2018(10), 037, 05 Oct. 2018, Refereed - Resurgence analysis of 2d Yang-Mills theory on a torus
Kazumi Okuyama, Kazuhiro Sakai
Journal of High Energy Physics, 2018(08), 065, 13 Aug. 2018, Refereed - Phase diagram of q-deformed Yang-Mills theory on S^2 at non-zero theta-angle
Kazumi Okuyama
Journal of High Energy Physics, 2018(04), 059, 11 Apr. 2018, Refereed - Phase transition of anti-symmetric Wilson loops in N=4 SYM
Kazumi Okuyama
Journal of High Energy Physics, 2017(12), 125, 21 Dec. 2017, Refereed - Wilson loops in unitary matrix models at finite N
Kazumi Okuyama
Journal of High Energy Physics, 2017(07), 030, 07 Jul. 2017, Refereed - Wilson loops in 3d N= 4 SQCD from Fermi gas
Kazumi Okuyama
Journal of High Energy Physics, 2016(11), 156, 25 Nov. 2016, Refereed - α′-expansion of antisymmetric Wilson loops in N=4 SYM from Fermi gas
Masaatsu Horikoshi, Kazumi Okuyama
Progress of Theoretical and Experimental Physics, 2016(11), 113B05, 16 Nov. 2016, Refereed - Exact results for ABJ Wilson loops and open-closed duality
Yasuyuki Hatsuda, Kazumi Okuyama
Journal of High Energy Physics, 2016(10), 132, 24 Oct. 2016, Refereed - Instanton corrections of 1/6 BPS Wilson loops in ABJM theory
Kazumi Okuyama
Journal of High Energy Physics, 2016(09), 125, 20 Sep. 2016, Refereed - ABJ theory in the higher spin limit
Shinji Hirano, Masazumi Honda, Kazumi Okuyama, Masaki Shigemori
Journal of High Energy Physics, 08, 174, 31 Aug. 2016, Refereed - Numerical analysis of Coleman–de Luccia tunneling
Yuhei Goto, Kazumi Okuyama
International Journal of Modern Physics A, 31(24), 1650131, 30 Aug. 2016, Refereed - TBA-like integral equations from quantized mirror curves
Kazumi Okuyama, Szabolcs Zakany
Journal of High Energy Physics, 2016(03), 101, 15 Mar. 2016, Refereed - Orientifolding of the ABJ Fermi gas
Kazumi Okuyama
Journal of High Energy Physics, 2016(03), 008, 02 Mar. 2016, Refereed - Probing non-perturbative effects in M-theory on orientifolds
Kazumi Okuyama
Journal of High Energy Physics, 2016(01), 054, 11 Jan. 2016, Refereed - Exact instanton expansion of the ABJM partition function
Yasuyuki Hatsuda, Sanefumi Moriyama, Kazumi Okuyama
Progress of Theoretical and Experimental Physics, 2015(11), 104, 28 Oct. 2015, Refereed - Large N non-perturbative effects in N=4 superconformal Chern-Simons theories
Yasuyuki Hatsuda, Masazumi Honda, Kazumi Okuyama
Journal of High Energy Physics, 1509, 046, 09 Sep. 2015, Refereed - Resummations and Non-Perturbative Corrections
Yasuyuki Hatsuda, Kazumi Okuyama
Journal of High Energy Physics, 1509, 051, 09 Sep. 2015, Refereed - Probing non-perturbative effects in M-theory
Yasuyuki Hatsuda, Kazumi Okuyama
Journal of High Energy Physics, 1410, 158, 27 Oct. 2014, Refereed - Non-perturbative effects and the refined topological string
Yasuyuki Hatsuda, Marcos Marino, Sanefumi Moriyama, Kazumi Okuyama
Journal of High Energy Physics, 2014(9), 168, 29 Sep. 2014, Refereed - Exact results on ABJ theory and the refined topological string
Masazumi Honda, Kazumi Okuyama
Journal of High Energy Physics, 2014(8), 148, 26 Aug. 2014, Refereed - ABJM Wilson Loops in Arbitrary Representations
Yasuyuki Hatsuda, Masazumi Honda, Sanefumi Moriyama, Kazumi Okuyama
Journal of High Energy Physics, 2013(10), 168, 24 Oct. 2013, Refereed - Instanton bound states in ABJM theory
Yasuyuki Hatsuda, Sanefumi Moriyama, Kazumi Okuyama
Journal of High Energy Physics, 2013(5), 054, 13 May 2013, Refereed - Instanton effects in ABJM theory from Fermi gas approach
Yasuyuki Hatsuda, Sanefumi Moriyama, Kazumi Okuyama
Journal of High Energy Physics, 2013(1), 158, 24 Jan. 2013, Refereed - Exact results on the ABJM Fermi gas
Yasuyuki Hatsuda, Sanefumi Moriyama, Kazumi Okuyama
Journal of High Energy Physics, 2012(10), 020, 02 Oct. 2012, Refereed - A Note on the Partition Function of ABJM Theory on S3
Kazumi Okuyama
Progress of Theoretical Physics, 127(2), 229-242, 2012, Refereed - Gauge-Higgs unification in spontaneously created fuzzy extra dimensions
Kazuyuki Furuuchi, Takeo Inami, Kazumi Okuyama
Journal of High Energy Physics, 2011(11), 006, Nov. 2011, Refereed - D-branes Wrapped on Fuzzy del Pezzo Surfaces
Kazuyuki Furuuchi, Kazumi Okuyama
Journal of High Energy Physics, 1101, 043, 2011, Refereed - Global AdS Picture of 1/2 BPS Wilson Loops
Kazumi Okuyama
Journal of High Energy Physics, 1001, 096, 2010, Refereed - q-Deformed Oscillators and D-branes on Conifold
Kazumi Okuyama
Physics Letters B, 673, 232-236, 2009, Refereed - Instanton Solution in Tachyon Cosmology
Kazumi Okuyama
Physics Letters B, 658, 241-243, 2008, Refereed - N=4 SYM on K3 and the AdS(3)/CFT(2) Correspondence
Kazumi Okuyama
Journal of High Energy Physics, 0802, 036, 2008, Refereed - Linear Sigma Models for the R^8/Z_k Orbifold
Kazumi Okuyama
Physics Letters B, 668, 153-158, 2008, Refereed - D-Brane Amplitudes in Topological String on Conifold
KazumiOkuyama
Physics Letters B, 645, 275-280, 2007, Refereed - 1/2 BPS Correlator and Free Fermion
Kazumi Okuyama
Journal of High Energy Physics, 0601, 021, 2006, Refereed - Hairpin Branes and D-Branes Behind the Horizon
Kazumi Okuyama, Moshe Rozali
Journal of High Energy Physics, 0603, 071, 2006, Refereed - Wilson Loops in N=4 SYM and Fermion Droplets
Kazumi Okuyama, Gordon W. Semenoff
Journal of High Energy Physics, 0606, 057, 2006, Refereed - t Hooft Expansion of 1/2 BPS Wilson Loop
Kazumi Okuyama
JournalofHigh Energy Physics, 0609, 007, 2006, Refereed - Annulus Amplitudes in the Minimal Superstring
Kazumi Okuyama
Journal of High Energy Physics, 0504, 002, 2005, Refereed - Linear Sigma Models of H and KK Monopoles
Kazumi Okuyama
Journal of High Energy Physics, 0508, 089, 2005, Refereed - D1-D5 on ALE Space
Kazumi Okuyama
Journal of High Energy Physics, 0512, 042, 2005, Refereed - Three-Point Functions in N=4 SYM Theory at One-Loop
Kazumi Okuyama, Li-Sheng Tseng
Journal of High Energy Physics, 0408, 055, 2004, Refereed - Annulus Amplitudes and ZZ Branes in Minimal String Theory
David Kutasov, Kazumi Okuyama, Jongwon Park, Nathan Seiberg, David Shih
Journal of High Energy Physics, 0408, 026, 2004, Refereed - Scattered Results in 2D String Theory
Emil Martinec, Kazumi Okuyama
Journal of High Energy Physics, 0410, 065, 2004, Refereed - D-Branes on the Null-Brane
Kazumi Okuyama
Journal of High Energy Physics, 0302, 043, 2003, Refereed - Wess-Zumino Term in Tachyon Effective Action
Kazumi Okuyama
Journal of High Energy Physics, 0305, 005, 2003, Refereed - Comments on Half S-Branes
Kazumi Okuyama
Journal of High Energy Physics, 0309, 053, 2003, Refereed - Siegel Gauge in Vacuum String Field Theory
Kazumi Okuyama
Journal of High Energy Physics, 0201, 043, 2002, Refereed - Ghost Kinetic Operator of Vacuum String Field Theory
Kazumi Okuyama
Journal of High Energy Physics, 0201, 027, 2002, Refereed - Ratio of Tensions from Vacuum String Field Theory
Kazumi Okuyama
Journal of High Energy Physics, 0203, 050, 2002, Refereed - PP-Waves and Holography
Robert G. Leigh, Kazumi Okuyama, Moshe Rozali
Physical Review D, 66, 46004, 2002, Refereed - N=4 SYMon R times S^3 and PP-Wave
Kazumi Okuyama
Journal of High Energy Physics, 0211, 043, 2002, Refereed - Free Field Appoach to StringTheoryon AdS_3
Kazuo Hosomichi,Kazumi Okuyama, Yuji Satoh
Nuclear Physics B, 598, 451-466, 2001, Refereed - Boundary States in B-Field Background
Kazumi Okuyama
PhysicsLetters B, 499, 305-314, 2001, Refereed - Noncommutative Tachyon from Background Independent Open String Field Theory
Kazumi Okuyama
Physics Letters B, 499, 167-173, 2001, Refereed - Comments on Open Wilson Lines and Generalized Star Products
Kazumi Okuyama
Physics Letters B, 506, 377-384, 2001, Refereed - Open string fields as matrices
Kazumi Okuyama
AIP Conf. Proc., 607, 202-208, 2001, Invited - Open string fields as matrices
Teruhiko Kawano, Kazumi Okuyama
Journal of High Energy Physics, 0106, 061, 2001, Refereed - Comma Vertex and String Field Algebra
Kazuyuki Furuuchi, Kazumi Okuyama
Journal of High EnergyPhysics, 0109, 035, 2001, Refereed - Spinor Exchange in AdS_{d+1}
Teruhiko Kawano, Kazumi Okuyama
Nuclear Physics B, 565, 427-444, 2000, Refereed - A Path Integral Representation of the Map between Commutative and Noncommutative Gauge Fields
Kazumi Okuyama
Journal of High Energy Physics, 0003, 016, 2000, Refereed - Path Integral Approach to String Theory on AdS_3
Nobuyuki Ishibashi, Kazumi Okuyama, Yuji Satoh
Nuclear Physics B, 588, 149-177, 2000, Refereed - BRST gauge fixing and the algebra of global supersymmetry
Kazuo Fujikawa, Kazumi Okuyama
Nuclear Physics B, 521, 401-415, 1998, Refereed - SO(9,1) invariant matrix formulation of supermembrane
Kazuo Fujikawa, Kazumi Okuyama
NuclearPhysics B, 510, 175-198, 1998, Refereed - BPS Condition of String Junction from M theory
Yutaka Matsuo, Kazumi Okuyama
Physics Letters B, 426, 294-296, 1998, Refereed - Matrix Theory on Noncommutative Torus
Teruhiko Kawano, Kazumi Okuyama
Physics Letters B, 433, 29-34, 1998, Refereed - String Network and 1/4 BPS States in N=4 SU(n) Supersymmetric Yang-Mills Theory
Teruhiko Kawano, Kazumi Okuyama
Physics Letters B, 432, 338-342, 1998, Refereed - Fractional Strings in (p,q) 5-brane and Quiver Matrix String Theory
Kazumi Okuyama, Yuji Sugawara
Journal of High Energy Physics, 9808, 002, 1998, Refereed - On a Lorentz covariant matrix regularization of membrane theories
Kazuo Fujikawa, Kazumi Okuyama
Physics Letters B, 411, 261-267, 1997, Refereed
