22 citations · 103 across the 17 of their papers we have counts for
19 papers
Searching for the QCD critical endpoint using multi-point Padé approximations
David A. Clarke, Petros Dimopoulos, Francesco Di Renzo +4
Using the multi-point Padé approach, we locate Lee-Yang edge singularities of the QCD pressure in the complex baryon chemical potential plane. These singularities are extracted fro…
Searching for the QCD critical point using Lee-Yang edge singularities
D. A. Clarke, P. Dimopoulos, F. Di Renzo +4
Using QCD calculations at physical quark mass and purely imaginary baryon chemical potential, we locate Lee-Yang edge singularities in the complex chemical potential plan…
Detecting Lee-Yang/Fisher singularities by multi-point Padè
F. Di Renzo, D. A. Clarke, P. Dimopoulos +4
The Bielefeld Parma Collaboration has in recent years put forward a method to probe finite density QCD by the detection of Lee-Yang singularities. The location of the latter is obt…
Universal scaling and the asymptotic behaviour of Fourier coefficients of the baryon-number density in QCD
Christian Schmidt, David A. Clarke, Petros Dimopoulos +5
We discuss the scaling of the Yang-Lee singularity (YLs) and show how the universal scaling can be used to locate phase transitions in QCD. We describe two complementary methods to…
Exploring the Critical Points in QCD with Multi-Point Padé and Machine Learning Techniques in (2+1)-flavor QCD
Jishnu Goswami, D. A. Clarke, P. Dimopoulos +4
Using simulations at multiple imaginary chemical potentials for -flavor QCD, we construct multi-point Padé approximants. We determine the singularties of the Padé approximan…
Determination of Lee-Yang edge singularities in QCD by rational approximations
Kevin Zambello, David A. Clarke, Petros Dimopoulos +5
We report updated results on the determination of Lee-Yang edge (LYE) singularities in QCD using highly improved staggered quarks (HISQ) with physical masses on $N_τ= 4…
Detecting critical points from Lee-Yang edge singularities in lattice QCD
Christian Schmidt, David A. Clarke, Petros Dimopoulos +5
A new approach is presented to explore the singularity structure of lattice QCD in the complex chemical potential plane. Our method can be seen as a combination of the Taylor expan…
Thimble regularisation of YM fields: crunching a hard problem
Francesco Di Renzo, Simran Singh, Kevin Zambello
Thimble regularisation of Yang Mills theories is still to a very large extent terra incognita. We discuss a couple of topics related to this big issue. 2d YM theories are in princi…
Taylor expansions and Padé approximations for Lefschetz thimbles and beyond
Kevin Zambello, Francesco Di Renzo, Simran Singh
Deforming the domain of integration after complexification of the field variables is an intriguing idea to tackle the sign problem. In thimble regularization the domain of integrat…
Lee-Yang edge singularities in 2+1 flavor QCD with imaginary chemical potential
Guido Nicotra, Petros Dimopoulos, Lorenzo Dini +6
We present results of the location of the closest singularities in the complex chemical potential plane using a novel method. These results are obtained with (2+1)-flavor of highly…
Lee-Yang edge singularities in lattice QCD : A systematic study of singularities in the complex plane using rational approximations
Simran Singh, Petros Dimopoulos, Lorenzo Dini +6
A new approach is presented to explore the singularity structure of lattice QCD at imaginary chemical potential. Our method can be seen as a combination of the Taylor expansion and…
Contribution to understanding the phase structure of strong interaction matter: Lee-Yang edge singularities from lattice QCD
P. Dimopoulos, L. Dini, F. Di Renzo +6
We present a calculation of the net baryon number density as a function of imaginary baryon number chemical potential, obtained with highly improved staggered quarks (HISQ) at temp…
Settling an old story: solution of the Thirring model in thimble regularization
Francesco Di Renzo, Kevin Zambello
Thimble regularisation of lattice field theories has been proposed as a solution to the infamous sign problem. It is conceptually very clean and powerful, but it is in practice lim…
Net-baryon number fluctuations
C. Schmidt, J. Goswami, G. Nicotra +5
The appearance of large, none-Gaussian cumulants of the baryon number distribution is commonly discussed as a signal for the QCD critical point. We review the status of the Taylor…
Taylor expansions on Lefschetz thimbles (and not only that)
Francesco Di Renzo, Simran Singh, Kevin Zambello
Thimble regularisation is a possible solution to the sign problem, which is evaded by formulating quantum field theories on manifolds where the imaginary part of the action stays c…
One-thimble regularisation of lattice field theories: is it only a dream?
Francesco Di Renzo, Simran Singh, Kevin Zambello
Lefschetz thimbles regularisation of (lattice) field theories was put forward as a possible solution to the sign problem. Despite elegant and conceptually simple, it has many subtl…
On the Lefschetz thimbles structure of the Thirring model
Kevin Zambello, Francesco Di Renzo
The complexification of field variables is an elegant approach to attack the sign problem. In one approach one integrates on Lefschetz thimbles: over them, the imaginary part of th…
Towards Lefschetz thimbles regularization of heavy-dense QCD
Kevin Zambello, Francesco Di Renzo
At finite density, lattice simulations are hindered by the well-known sign problem: for finite chemical potentials, the QCD action becomes complex and the Boltzmann weight …
The curvature of the chiral pseudocritical line from LQCD: analytic continuation and Taylor expansion compared
Claudio Bonati, Massimo D'Elia, Francesco Negro +2
We present a determination of the curvature of the chiral pseudocritical line from lattice QCD at the physical point obtained by adopting the Taylor expansion approac…