638 citations · 1.3k across the 27 of their papers we have counts for
27 papers
Density of observables from local derivatives
Rasmus Normann Larsen
We derive a formula to calculate the local change to the log of any density of states for smooth real observables. Using this in Monte-Carlo simulations, we are able to calculate t…
Un-screened forces in Quark-Gluon Plasma?
Alexei Bazavov, Daniel Hoying, Rasmus N. Larsen +4
We study the correlator of temporal Wilson lines at non-zero temperature in 2+1 flavor lattice QCD with the aim to define the heavy quark-antiquark potential at non-zero temperatur…
SIMULATeQCD: A simple multi-GPU lattice code for QCD calculations
Lukas Mazur, Dennis Bollweg, David A. Clarke +14
The rise of exascale supercomputers has fueled competition among GPU vendors, driving lattice QCD developers to write code that supports multiple APIs. Moreover, new developments i…
Heavy Quark Diffusion from 2+1 Flavor Lattice QCD with 320 MeV Pion Mass
Luis Altenkort, Olaf Kaczmarek, Rasmus Larsen +4
We present the first calculations of the heavy flavor diffusion coefficient using lattice QCD with light dynamical quarks. For temperatures ,…
Kernel controlled real-time Complex Langevin simulation
Daniel Alvestad, Rasmus Larsen, Alexander Rothkopf
This study explores the utility of a kernel in complex Langevin simulations of quantum real-time dynamics on the Schwinger-Keldysh contour. We give several examples where we use a…
Static quark anti-quark interactions at non-zero temperature from lattice QCD
Gaurang Parkar, Dibyendu Bala, Olaf Kaczmarek +5
We present results on the in-medium interactions of static quark anti-quark pairs using realistic 2+1 HISQ flavor lattice QCD. Focus is put on the extraction of spectral informatio…
Kernel controlled real-time Complex Langevin simulation
Daniel Alvestad, Rasmus Larsen, Alexander Rothkopf
This study explores the utility of a kernel in complex Langevin simulations of quantum real-time dynamics on the Schwinger-Keldysh contour. We give several examples where we use a…
Towards learning optimized kernels for complex Langevin
Daniel Alvestad, Rasmus Larsen, Alexander Rothkopf
We present a novel strategy aimed at restoring correct convergence in complex Langevin simulations. The central idea is to incorporate system-specific prior knowledge into the simu…
Reducing the Sign Problem with Line Integrals
Rasmus N. Larsen
We present a novel strategy to strongly reduce the severity of the sign problem, using line integrals along paths of changing imaginary action. Highly oscillating regions along the…
Correlating confinement to topological fluctuations near the crossover transition in QCD
Rasmus N. Larsen, Sayantan Sharma, Edward Shuryak
We show the existence of strong (anti)correlations between the topological hot spots and the local values of the trace of the Polyakov loop in flavor QCD with physical quark…
The complex potential from 2+1 flavor QCD using HTL inspired approach
Dibyendu Bala, Olaf Kaczmarek, Rasmus Larsen +5
We have studied finite temperature complex static quark-antiquark potentials for 2+1 flavor QCD using highly improved staggered action with physical strange quark masses and light…
In-medium static quark potential from spectral functions on realistic HISQ ensembles
Gaurang Parkar, Dibyendu Bala, Olaf Kaczmarek +5
We explore the interactions between a quark anti-quark pair in a thermal medium based on lattice QCD ensembles with dynamical HISQ flavors. Our dataset spans the phenom…
Static quark anti-quark interactions at non-zero temperature from lattice QCD
Dibyendu Bala, Olaf Kaczmarek, Rasmus Larsen +5
We study the interactions of a static quark antiquark pair at non-zero temperature using realistic 2+1 flavor lattice QCD calculations. The study consists of two parts: the first i…
Bethe-Salpeter amplitudes of Upsilons
Rasmus Larsen, Stefan Meinel, Swagato Mukherjee +1
Based on lattice non-relativistic QCD (NRQCD) studies we present results for Bethe-Salpeter amplitudes for , and in vacuum as well as in quark-gluon plasma.…
Skewness, kurtosis and the 5th and 6th order cumulants of net baryon-number distributions from lattice QCD confront high-statistics STAR data
A. Bazavov, D. Bollweg, H. -T. Ding +12
We present new results on up to order cumulants of net baryon-number fluctuations at small values of the baryon chemical potential, , obtained in lattice QCD calculat…
Towards a semi-classical description of QCD vacuum around
Rasmus N. Larsen, Sayantan Sharma, Edward Shuryak
We study the vacuum topology of 2+1 flavor QCD above the chiral crossover transition, at , on lattices of size . Since overlap fermions have exact…
Excited bottomonia in quark-gluon plasma from lattice QCD
Rasmus Larsen, Stefan Meinel, Swagato Mukherjee +1
We present the first lattice QCD study of up to and bottomonia at non-zero temperatures. Correlation functions of bottomonia were computed using novel bottomonium operato…
Thermal Broadening of Bottomonia: Lattice Non-Relativistic QCD with Extended Operators
Rasmus Larsen, Stefan Meinel, Swagato Mukherjee +1
We present lattice non-relativistic QCD calculations of bottomonium correlation functions at temperatures MeV. The correlation functions were computed using exte…
Chiral crossover in QCD at zero and non-zero chemical potentials
A. Bazavov, H. -T. Ding, P. Hegde +14
We present results for pseudo-critical temperatures of QCD chiral crossovers at zero and non-zero values of baryon (), strangeness (), electric charge (), and isospin (…
The topological objects near the chiral crossover transition in QCD
Rasmus N. Larsen, Sayantan Sharma, Edward Shuryak
We study the underlying topology of gauge fields in 2+1 flavor QCD with domain wall fermions on lattices of size , at and immediately above the chiral crossover trans…
Hadronic Correlation Functions in the Random Instanton-dyon Ensemble
Rasmus Larsen, Edward Shuryak
It is known since 1980's that the instanton-induced 't Hooft effective Lagrangian not only can solve the so called problem, by making the meson heavy etc, but it can a…
Correlations and fluctuations of the gauge topology at finite temperatures
Rasmus Larsen, Edward Shuryak
Instanton-dyons are topological solitons -- solutions of Yang-Mills equations -- which appear at non-trivial expectation value of at nonzero temperatures. Using the ensembles…
Instanton-dyon Ensembles III: Exotic Quark Flavors
Rasmus Larsen, Edward Shuryak
"Exotic quarks" in the title refers to a modification of quark periodicity condition on the thermal circle by introduction of some phases -- known also as "flavor holonomies" -- di…
Instanton-dyon Ensemble with two Dynamical Quarks: the Chiral Symmetry Breaking
Rasmus Larsen, Edward Shuryak
This is the second paper of the series aimed at understanding the ensemble of instanton-dyons, now with two flavors of light dynamical quarks. The partition function is appended by…