scholarly journals A Skorokhod problem with singular drift and its application to the origin of universes

1994 ◽  
Vol 70 (4) ◽  
pp. 88-93 ◽  
Author(s):  
Thomas Domenig ◽  
Masao Nagasawa
Keyword(s):  
Skorokhod Problem ◽  
Singular Drift

scholarly journals A variational approach to dissipative SPDEs with singular drift

2018 ◽  
Vol 46 (3) ◽  
pp. 1455-1497 ◽  
Author(s):  
Carlo Marinelli ◽  
Luca Scarpa
Keyword(s):  
Variational Approach ◽  
Singular Drift

scholarly journals Gauge cooling for the singular-drift problem in the complex Langevin method - an application to finite density QCD

2017 ◽  
Author(s):  
Keitaro Nagata ◽  
Hideo Matsufuru ◽  
Jun Nishimura ◽  
Shinji Shimasaki
Keyword(s):  
Finite Density ◽  
Singular Drift

scholarly journals Comparative studies of the deformation techniques for the singular-drift problem in the complex Langevin method

2018 ◽  
Vol 175 ◽  
pp. 07019 ◽  
Author(s):  
Yuta Ito ◽  
Jun Nishimura
Keyword(s):  
Low Temperature ◽  
Dirac Operator ◽  
Matrix Model ◽  
Comparative Studies ◽  
Deformation Parameter ◽  
High Density ◽  
Large N ◽  
Singular Drift ◽  
Different Types ◽  
Data Points

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 Dirac operator. In order to avoid this problem, we proposed to de-form the Dirac operator in such a way that the near-zero eigenvalues do not appear and to extrapolate the deformation parameter to zero from the available data points. Here we test three different types of deformation in a simple large-N matrix model, which under-goes an SSB due to the phase of the fermion determinant, and compare them to see the consistency with one another.

On a Skorokhod problem with small double limit

2019 ◽  
Vol 30 (5-6) ◽  
pp. 959-972
Author(s):  
Alioune Coulibaly ◽  
Alassane Diedhiou ◽  
Ibrahima Sane
Keyword(s):  
Skorokhod Problem ◽  
Double Limit
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