35 citations · 258 across the 36 of their papers we have counts for
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Color superconductivity on the lattice -- analytic predictions from QCD in a small box
Takeru Yokota, Yuta Ito, Hideo Matsufuru +4
We investigate color superconductivity on the lattice using the gap equation for the Cooper pair condensate. The weak coupling analysis is justified by choosing the physical size o…
A new phase in the Lorentzian type IIB matrix model and the emergence of continuous space-time
Mitsuaki Hirasawa, Konstantinos Anagnostopoulos, Takehiro Azuma +5
The Lorentzian type IIB matrix model is a promising candidate for a non-perturbative formulation of superstring theory. In previous studies, Monte Carlo calculations provided inter…
Relationship between the Euclidean and Lorentzian versions of the type IIB matrix model
Kohta Hatakeyama, Konstantinos Anagnostopoulos, Takehiro Azuma +5
The type IIB matrix model was proposed as a non-perturbative formulation of superstring theory in 1996. We simulate a model that describes the late time behavior of the IIB matrix…
A new technique for solving the freezing problem in the complex Langevin simulation of 4D SU(2) gauge theory with a theta term
Akira Matsumoto, Kohta Hatakeyama, Mitsuaki Hirasawa +4
We apply the complex Langevin method (CLM) to overcome the sign problem in 4D SU(2) gauge theory with a theta term extending our previous work on the 2D U(1) case. The topology fre…
Flavor number dependence of QCD at finite density by the complex Langevin method
Yusuke Namekawa, Yuhma Asano, Yuta Ito +6
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…
Color superconductivity in a small box: a complex Langevin study
Shoichiro Tsutsui, Yuhma Asano, Yuta Ito +5
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 paramete…
Perturbative predictions for color superconductivity on the lattice
Takeru Yokota, Yuhma Asano, Yuta Ito +5
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 im…
Complex Langevin studies of the dynamical compactification of extra dimensions in the Euclidean IKKT matrix model
Konstantinos N. Anagnostopoulos, Takehiro Azuma, Yuta Ito +3
The type IIB matrix model, also known as the IKKT matrix model, is a promising candidate for a nonperturbative formulation of superstring theory. In this talk we study the Euclidea…
Dynamical Compactification of Extra Dimensions in the Euclidean IKKT Matrix Model via Spontaneous Symmetry Breaking
Konstantinos N. Anagnostopoulos, Takehiro Azuma, Yuta Ito +3
The IKKT matrix model has been conjectured to provide a promising nonperturbative formulation of superstring theory. In this model, spacetime emerges dynamically from the microscop…
Exploring the QCD phase diagram at finite density by the complex Langevin method on a lattice
Shoichiro Tsutsui, Yuta Ito, Hideo Matsufuru +3
We explore the QCD phase diagram at finite density with four-flavor staggered fermions using the complex Langevin method, which is a promising approach to overcome the sign problem…
Exploring the phase diagram of finite density QCD at low temperature by the complex Langevin method
Yuta Ito, Hideo Matsufuru, Jun Nishimura +3
Monte Carlo studies of QCD at finite density suffer from the sign problem, which becomes easily uncontrollable as the chemical potential is increased even for a moderate lattic…
Can the complex Langevin method see the deconfinement phase transition in QCD at finite density?
Shoichiro Tsutsui, Yuta Ito, Hideo Matsufuru +3
Exploring the phase diagram of QCD at finite density is a challenging problem since first-principle calculations based on standard Monte Carlo methods suffer from the sign problem.…
Complex Langevin analysis of the spontaneous symmetry breaking in dimensionally reduced super Yang-Mills models
Konstantinos N. Anagnostopoulos, Takehiro Azuma, Yuta Ito +2
In recent years the complex Langevin method (CLM) has proven a powerful method in studying statistical systems which suffer from the sign problem. Here we show that it can also be…
Comparative studies of the deformation techniques for the singular-drift problem in the complex Langevin method
Yuta Ito, Jun Nishimura
In application of the complex Langevin method to QCD at high density and low temperature, the singular-drift problem occurs due to the appearance of near-zero eigenvalues of the Di…
Spontaneous symmetry breaking induced by complex fermion determinant --- yet another success of the complex Langevin method
Yuta Ito, Jun Nishimura
In many interesting systems, the fermion determinant becomes complex and its phase plays a crucial role in the determination of the vacuum. For instance, in finite density QCD at l…
The complex Langevin analysis of spontaneous symmetry breaking induced by complex fermion determinant
Yuta Ito, Jun Nishimura
In many interesting physical systems, the determinant which appears from integrating out fermions becomes complex, and its phase plays a crucial role in the determination of the va…
Large-scale computation of the exponentially expanding universe in a simplified Lorentzian type IIB matrix model
Yuta Ito, Jun Nishimura, Asato Tsuchiya
The type IIB matrix model is a conjectured nonperturbative formulation of superstring theory. Recent studies on the Lorentzian version of the model have shown that only three out o…
Monte Carlo studies on the expanding behavior of the early universe in the Lorentzian type IIB matrix model
Yuta Ito, Sang-Woo Kim, Jun Nishimura +1
The type IIB matrix model is a conjectured nonperturbative formulation of superstring theory. Recently the Lorentzian version of the model has been studied by Monte Carlo simulatio…