skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Gradient flows without blow-up for Lefschetz thimbles

Journal Article · · Journal of High Energy Physics (Online)
ORCiD logo [1];  [1];  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center
  2. Stony Brook Univ., NY (United States). Dept. of Physics and Astronomy

We propose new gradient flows that define Lefschetz thimbles and do not blow up in a finite flow time. Here, we study analytic properties of these gradient flows, and confirm them by numerical tests in simple examples.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0012704
OSTI ID:
1425163
Report Number(s):
RBRC-1241; BNL-114873-2017-JAAM; TRN: US1802056
Journal Information:
Journal of High Energy Physics (Online), Vol. 2017, Issue 10; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

References (48)

RG flows and bifurcations journal June 2017
Complex Langevin: etiology and diagnostics of its main problem journal October 2011
Lefschetz-thimble analysis of the sign problem in one-site fermion model journal March 2016
Mathematical Methods of Classical Mechanics book January 1989
Monte Carlo Study of Real Time Dynamics on the Lattice journal August 2016
Sign problem and Monte Carlo calculations beyond Lefschetz thimbles journal May 2016
Sign problem in the numerical simulation of many-electron systems journal May 1990
Chiral Lagrangian from Duality and Monopole Operators in Compactified QCD journal August 2016
Lectures on non-perturbative effects in large N gauge theories, matrix models and strings: Non-perturbative effects in large N gauge theories, matrix models and strings journal April 2014
Random Matrix Model of QCD at Finite Density and the Nature of the Quenched Limit journal June 1996
Holomorphic matrix integrals journal July 2004
Phase of the Fermion Determinant at Nonzero Chemical Potential journal January 2007
No-Go Theorem for Critical Phenomena in Large- N c QCD journal March 2012
Lefschetz thimble structure in one-dimensional lattice Thirring model at finite density journal November 2015
Analytic continuation of Liouville theory journal December 2011
Some remarks on Lefschetz thimbles and complex Langevin dynamics journal October 2014
Lattice QCD at High Temperature and Density book January 2002
Recent developments in quantum Monte Carlo simulations with applications for cold gases journal August 2012
Hyperasymptotics for multidimensional integrals, exact remainder terms and the global connection problem journal November 1997
Resurgence and holomorphy: From weak to strong coupling journal May 2015
Hidden Topological Angles in Path Integrals journal July 2015
Resurgence theory, ghost-instantons, and analytic continuation of path integrals journal October 2013
Orbifold Equivalence and the Sign Problem at Finite Baryon Density journal March 2011
Functional Integrals for QCD at Nonzero Chemical Potential and Zero Density journal November 2003
Computational Complexity and Fundamental Limitations to Fermionic Quantum Monte Carlo Simulations journal May 2005
Structure of Lefschetz thimbles in simple fermionic systems journal March 2015
Resurgence and trans-series in Quantum Field Theory: the $\mathbb{C}{{\mathbb{P}}^{N-1 }}$ model journal November 2012
The fermion propagator matrix in lattice QCD journal May 1986
Multi-flavor massless QED2 at finite densities via Lefschetz thimbles journal February 2017
Nonperturbative effects and nonperturbative definitions in matrix models and topological strings journal December 2008
The Resurgence of Instantons: Multi-Cut Stokes Phases and the Painlevé II Equation journal April 2014
QCD sign problem for small chemical potential journal June 2007
Global Symmetries, Volume Independence, and Continuity in Quantum Field Theories journal January 2017
The curious incident of multi-instantons and the necessity of Lefschetz thimbles journal November 2015
Analytic continuation of Chern-Simons theory book January 2010
Neutral bions in the ℂ $$ \mathbb{C} $$ P N −1 model journal June 2014
Path integrals in the theory of condensed helium journal April 1995
The phase diagram of dense QCD journal December 2010
Real-time Feynman path integral with Picard–Lefschetz theory and its applications to quantum tunneling journal December 2014
Lattice Monte Carlo simulations of QCD at finite baryonic density journal December 1986
Lattice QCD at Finite Density: An Introductory Review journal October 2003
The critical points of strongly coupled lattice QCD at nonzero chemical potential journal December 1997
Combining the complex Langevin method and the generalized Lefschetz-thimble method journal June 2017
Hybrid Monte Carlo on Lefschetz thimbles — A study of the residual sign problem journal October 2013
Decoding perturbation theory using resurgence: Stokes phenomena, new saddle points and Lefschetz thimbles journal October 2015
Resurgence and the Nekrasov-Shatashvili limit: connecting weak and strong coupling in the Mathieu and Lamé systems journal February 2015
Complex saddle points and the sign problem in complex Langevin simulation journal October 2016
Results on finite density QCD journal January 1998

Cited By (5)


Similar Records

The curious incident of multi-instantons and the necessity of Lefschetz thimbles
Journal Article · Wed Nov 25 00:00:00 EST 2015 · Journal of High Energy Physics (Online) · OSTI ID:1425163

Finite density QED 1 + 1 near Lefschetz thimbles
Journal Article · Thu Aug 30 00:00:00 EDT 2018 · Physical Review D · OSTI ID:1425163

Sign problem and Monte Carlo calculations beyond Lefschetz thimbles
Journal Article · Tue May 10 00:00:00 EDT 2016 · Journal of High Energy Physics (Online) · OSTI ID:1425163