Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Asano, Yuhma"'
Autor:
Asano, Yuhma
We discuss the path-integral quantisation of perturbative string theory and show equivalence between the Polyakov-type, Schild-type and Nambu-Goto-type formulations of critical type II superstring theory. Remarkably, we also find that the Minkowskian
Externí odkaz:
http://arxiv.org/abs/2408.04000
The type IIB matrix model is a promising nonperturbative formulation of superstring theory, which may elucidate the emergence of (3+1)-dimensional space-time. However, the partition function is divergent due to the Lorentz symmetry, which is represen
Externí odkaz:
http://arxiv.org/abs/2404.14045
Autor:
Asano, Yuhma, Nishimura, Jun
The dynamics of zero modes in gauge theory is highly nontrivial due to its nonperturbative nature even in the case where the other modes can be treated perturbatively. One of the related issues concerns the possible instability of the trivial vacuum
Externí odkaz:
http://arxiv.org/abs/2303.01008
Publikováno v:
PTEP 2023 (2023) 4, 043B01
We consider a double scaling limit of the plane wave matrix model (PWMM), in which the gravity dual geometry of PWMM reduces to a class of spherical NS5-brane solutions. We identify the form of the scaling limit for the dual geometry of PWMM around a
Externí odkaz:
http://arxiv.org/abs/2211.13716
Autor:
Asano, Yuhma, Steinacker, Harold C.
We present a systematic study of spherically symmetric vacuum solutions of the IKKT matrix model, within the framework of semi-classical covariant quantum geometries. All asymptotically flat solutions of the equations of motion of the frame are found
Externí odkaz:
http://arxiv.org/abs/2112.08204
Autor:
Namekawa, Yusuke, Asano, Yuhma, Ito, Yuta, Kaneko, Takashi, Matsufuru, Hideo, Nishimura, Jun, Tsuchiya, Asato, Tsutsui, Shoichiro, Yokota, Takeru
We discuss the flavor number dependence of QCD at low temperature and high density by the complex Langevin method. In our previous work, the complex Langevin method is confirmed to satisfy the criterion for correct convergence in certain regions, suc
Externí odkaz:
http://arxiv.org/abs/2112.00150
Autor:
Yokota, Takeru, Asano, Yuhma, Ito, Yuta, Matsufuru, Hideo, Namekawa, Yusuke, Nishimura, Jun, Tsuchiya, Asato, Tsutsui, Shoichiro
We develop a new method to investigate color superconductivity (CSC) on the lattice based on the Thouless criterion, which amounts to solving the linearized gap equation without imposing any ansatz on the structure of the Cooper pairs. We perform exp
Externí odkaz:
http://arxiv.org/abs/2111.14578
Autor:
Tsutsui, Shoichiro, Asano, Yuhma, Ito, Yuta, Matsufuru, Hideo, Namekawa, Yusuke, Nishimura, Jun, Tsuchiya, Asato, Yokota, Takeru
It is expected that the color superconductivity (CSC) phase appears in QCD at low temperature and high density. On the basis of the lattice perturbation theory, a possible parameter region in which the CSC occurs has been predicted. In this work, we
Externí odkaz:
http://arxiv.org/abs/2111.15095
Autor:
Asano, Yuhma
We review recent results of emergent geometries in the BMN matrix model, a one-dimensional gauge theory considered as a non-perturbative formulation of M-theory on the plane-wave geometry. A key to understand the emergent geometries is the eigenvalue
Externí odkaz:
http://arxiv.org/abs/2004.13111
We study the thermal phase transition of the bosonic BMN model which is a mass deformed version of the bosonic part of the BFSS model. Our results connect the massless region of the phase diagram described by the bosonic BFSS model with the large-mas
Externí odkaz:
http://arxiv.org/abs/2004.05820