Takeshi Oota

J-GLOBAL         Last updated: Jan 12, 2019 at 09:10
 
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Name
Takeshi Oota
Research funding number
70419688
ORCID ID
0000-0002-9603-2642

Awards & Honors

 
Mar 2014
The Quiver Matrix Model and 2d-4d Conformal Connection, Prog. Theor. Phys. (2010) 123 (6): 957-98, 19th (2014) Award for Academic Papers on Physics, The Physical Socienty of Japan
Winner: Hiroshi Itoyama, Kazunobu Maruyoshi and Takeshi Oota
 
Mar 2010
Closed conformal Killing-Yano tensor and the uniqueness of generalized Kerr-NUT-de Sitter spacetime, 2009 Class. Quantum Grav. 26, 045015, CQG Highlights of 2008/2009, a Highlighted Regular paper, CQG Editorial Board
Winner: Tsuyoshi Houri, Takeshi Oota and Yukinori Yasui
 
Jan 2008
Some properties of Kerr-NUT-de Sitter spacetime, OCAMI Association Special Prize, OCAMI Association
 

Published Papers

 
Hiroshi Itoyama, Takeshi Oota, Katsuya Yano
Physics Letters B   789 605-609   Jan 2019   [Refereed]
We study the partition function of the matrix model of finite size that
realizes the irregular conformal block for the case of the Tex
supersymmetric Tex gauge theory with Tex. This model has been obtained
in [arXiv:1008.1861 [he...
Hiroshi Itoyama, Takeshi Oota, Reiji Yoshioka
J. Phys. A: Math. Theor.   50(36) 365401   Aug 2017   [Refereed]
We argue that the level-1 elliptic algebra Uq,p(gˆ) is a dynamical symmetry realized as a part of 2d/5d correspondence where the Drinfeld currents are the screening currents to the q-Virasoro/W block in the 2d side. For the case of Uq,p(slˆ(2)), t...
Hiroshi Itoyama, Takeshi Oota, Takao Suyama, Reiji Yoshioka
International Journal of Modern Physics A   32(11) 1750056 [23 pages]   Apr 2017   [Refereed]
A set of Schwinger-Dyson equations forming constraints for at most three resolvent functions are considered for a class of Chern-Simons matter matrix models with two nodes labelled by a non-vanishing number n. The two cases n=2 and n=−2 label resp...
Hiroshi Itoyama, Takeshi Oota, Reiji Yoshioka
J. Phys. A: Math. Theor.   49(34) 345201   Jul 2016   [Refereed]
The five-dimensional AGT correspondence implies the connection between the q-deformed Virasoro block and the 5d Nekrasov partition function. In this paper, we determine a q-deformation of the four-point block in the Coulomb gas representation from...
Hiroshi Itoyama, Takeshi Oota, Reiji Yoshioka
Nucl. Phys. B   889 25-35   Oct 2014   [Refereed]
We demonstrate that the parafermions appear in the r-th root of unity limit of q-Virasoro/W(n) algebra. The proper value of the central charge of the coset model slˆ(n)r⊕slˆ(n)_{m-n}/slˆ(n)_{m−n+r} is given from the parafermion construction of the...
Hiroshi Itoyama, Takeshi Oota, Reiji Yoshioka
Nucl. Phys. B   877(2) 506-537   Dec 2013   [Refereed]
We propose and demonstrate a limiting procedure in which, starting from the
q-lifted version (or K-theoretic five dimensional version) of the (W)AGT
conjecture to be assumed in this paper, the Virasoro/W block is generated in
the r-th root of unit...
Hiroshi Itoyama, Takeshi Oota
Nucl.Phys.B85   852(1) 336-351   Nov 2011   [Refereed]
We introduce An(1) (n=1,2,...) affine quiver matrix model by simply adopting
the extended Cartan matrices as incidence matrices and study its finite N
Schwinger-Dyson equations as well as their planar limit. In the case of n=1, we
extend our analy...
H. Itoyama, T. Oota, N. Yonezawa
Phys.Rev.D   82(8) 085031 [10 pages]   Oct 2010   [Refereed]
We consider a series of massive scaling limits m_1 -> infty, q -> 0, lim m_1
q = Lambda_{3} followed by m_4 -> infty, Lambda_{3} -> 0, lim m_4 Lambda_{3} =
(Lambda_2)^2 of the beta-deformed matrix model of Selberg type (N_c=2, N_f=4)
which reduce ...
Hiroshi Itoyama, Takeshi Oota
Nucl.Phys.B   838(3) 298-330   Mar 2010   [Refereed]
We observe that, at beta-deformed matrix models for the four-point conformal
block, the point q=0 is the point where the three-Penner type model becomes a
pair of decoupled two-Penner type models and where, in the planar limit, (an
array of) two-c...
Hiroshi Itoyama, Kazunobu Maruyoshi, Takeshi Oota
Prog. Theor. Phys.   123(6) 957-987   Jun 2010   [Refereed]
19th (2014) Award for Academic Papers on Physics, the Physical Socienty of Japan.

We review the quiver matrix model (the ITEP model) in the light of the recent
progress on 2d-4d connection of conformal field theories, in particular, on the
relati...

Misc

 
H. Itoyama, T. Oota, R. Yoshioka
J. Phys.: Conf. Ser.   474 012022 [13 pages]   Nov 2013   [Refereed]
We propose a limiting procedure in which, starting from the q-lifted version
(or K-theoretic five dimensional version) of the (W)AGT conjecture to be assumed,
the Virasoro/W block is generated in the r-th root of unity limit in q in the 2d side,...
Takeshi Oota
Int.J.Mod.Phys.Conf.Ser.   21 92-100   2013   [Refereed]
The Tex-deformed matrix models of Selberg type are introduced. They are exactly calculable by using the Macdonald-Kadell formula. With an appropriate choice of the integration contours and interactions, the partition function of the matrix mod...
Oota Takeshi
The Nihon Butsuri Gakkaishi (Butsuri)   56(2) 118-121   Feb 2001   [Invited]
The two-dimensional Ising model has been studied since the work of Onsager. It is well-known that this model is equivalent to a free fermion field theory. Because of this property, some correlation functions can be written in terms of the determin...
Oota Takeshi, Korepin V.E.
Meeting abstracts of the Physical Society of Japan   52(1)    Mar 1997
Relation between Classical Self-Dual Yang-Mills Equation and Quantum Inverse Scattering Method
Vladimir E. Korepin, Takeshi Oota
INFINITE ANALYSIS, Ingegrable Systems and Representation Theory, E. Date, T. Miwa and M. Okado (Eds.)   IIAS Reports No.1997-001 59-69   Jan 1997

Research Grants & Projects

 
An unexpected symmetry in the integrable structure of gauge and string theories and its root of unity limit
JSPS: Grant-in-Aid for Scientific Research (C)
Project Year: Apr 2015 - Mar 2018    Investigator(s): Takeshi Oota
Emergence of integrability in gauge theory and string theory and its prediction in particle physics
JSPS: Grant-in-Aid for Scientific Research (C)
Project Year: Apr 2011 - Mar 2015    Investigator(s): Hiroshi Itoyama
Emergence of Integrability in Gauge Theory and String Theory and Nonperturbative Effects
JSPS: Grant-in-Aid for Scientific Research (C)
Project Year: Apr 2008 - Mar 2011    Investigator(s): Hiroshi Itoyama
Geometry of Black Hole and Sasaki-Einstein Metric
JSPS: Grant-in-Aid for Scientific Research (C)
Project Year: Apr 2007 - Mar 2009    Investigator(s): Yukinori Yasui
Emergence of integrability in reduced matrix model and string theory
JSPS: Grant-in-Aid for Scientific Research (C)
Project Year: Apr 2006 - Mar 2008    Investigator(s): Hiroshi Itoyama