SCOAP3 Repository 13 records found  1 - 10nextSearch took 0.02 seconds. 
1. Complex Langevin analysis of the space-time structure in the Lorentzian type IIB matrix model / Nishimura, Jun ; Tsuchiya, Asato
The Lorentzian type IIB matrix model has been studied as a promising candidate for a nonperturbative formulation of superstring theory. [...]
Published in JHEP 1906 (2019) 077 10.1007/JHEP06(2019)077 arXiv:1904.05919
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2. Complex Langevin calculations in finite density QCD at large μ/T with the deformation technique / Nagata, Keitaro ; Nishimura, Jun ; Shimasaki, Shinji
It is well known that investigating QCD at finite density by standard Monte Carlo methods is extremely difficult due to the sign problem. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.114513 arXiv:1805.03964
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3. Testing the criterion for correct convergence in the complex Langevin method / Nagata, Keitaro ; Nishimura, Jun ; Shimasaki, Shinji
Recently the complex Langevin method (CLM) has been attracting attention as a solution to the sign problem, which occurs in Monte Carlo calculations when the effective Boltzmann weight is not real positive. [...]
Published in JHEP 1805 (2018) 004 10.1007/JHEP05(2018)004 arXiv:1802.01876
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4. Complex Langevin analysis of the spontaneous symmetry breaking in dimensionally reduced super Yang-Mills models / Anagnostopoulos, Konstantinos ; Azuma, Takehiro ; Ito, Yuta ; Nishimura, Jun ; et al
In recent years the complex Langevin method (CLM) has proven a powerful method in studying statistical systems which suffer from the sign problem. [...]
Published in JHEP 1802 (2018) 151 10.1007/JHEP02(2018)151 arXiv:1712.07562
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5. A new method for probing the late-time dynamics in the Lorentzian type IIB matrix model / Azuma, Takehiro ; Ito, Yuta ; Nishimura, Jun ; Tsuchiya, Asato
The type IIB matrix model has been investigated as a possible nonperturbative formulation of superstring theory. [...]
Published in PTEP 2017 (2017) 083B03 10.1093/ptep/ptx106 arXiv:1705.07812
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6. Combining the complex Langevin method and the generalized Lefschetz-thimble method / Nishimura, Jun ; Shimasaki, Shinji
The complex Langevin method and the generalized Lefschetz-thimble method are two closely related approaches to the sign problem, which are both based on complexification of the original dynamical variables. [...]
Published in JHEP 1706 (2017) 023 10.1007/JHEP06(2017)023 arXiv:1703.09409
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7. Universality and the dynamical space-time dimensionality in the Lorentzian type IIB matrix model / Ito, Yuta ; Nishimura, Jun ; Tsuchiya, Asato
The type IIB matrix model is one of the most promising candidates for a nonperturbative formulation of superstring theory. [...]
Published in JHEP 1703 (2017) 143 10.1007/JHEP03(2017)143 arXiv:1701.07783
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8. Justification of the complex Langevin method with the gauge cooling procedure / Nagata, Keitaro ; Nishimura, Jun ; Shimasaki, Shinji
Recently, there has been remarkable progress in the complex Langevin method, which aims to solve the complex action problem by complexifying the dynamical variables in the original path integral. [...]
Published in PTEP 2016 (2016) 013B01 10.1093/ptep/ptv173 arXiv:1508.02377
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9. The complex Langevin analysis of spontaneous symmetry breaking induced by complex fermion determinant / Ito, Yuta ; Nishimura, Jun
In many interesting physical systems, the determinant which appears from integrating out fermions becomes complex, and its phase plays a crucial role in the deter-mination of the vacuum. [...]
Published in JHEP 1612 (2016) 009 10.1007/JHEP12(2016)009 arXiv:1609.04501
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10. Gauge cooling for the singular-drift problem in the complex Langevin method — a test in Random Matrix Theory for finite density QCD / Nagata, Keitaro ; Nishimura, Jun ; Shimasaki, Shinji
Recently, the complex Langevin method has been applied successfully to finite density QCD either in the deconfinement phase or in the heavy dense limit with the aid of a new technique called the gauge cooling. [...]
Published in JHEP 1607 (2016) 073 10.1007/JHEP07(2016)073 arXiv:1604.07717
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