22 citations · 159 across the 30 of their papers we have counts for
24 papers · 1 filter
Lattice studies of entanglement entropy in models at finite densities
Aatu Rajala, Niko Jokela, Tobias Rindlisbacher
As a characteristic property of all quantum systems, entanglement participates in many important quantum phenomena. In this proceeding, we employ it in the study of quantum field t…
Confined-deconfined interface tension and latent heat in SU(N) gauge theory
Tobias Rindlisbacher, Kari Rummukainen, Ahmed Salami
We present high-precision lattice results for the confined-deconfined interface tension and the latent heat of pure SU() gauge theories up to and investigate their asympt…
The confined-deconfined surface tension in SU(N) gauge theories at large N
Tobias Rindlisbacher, Kari Rummukainen, Ahmed Salami
We present results from an investigation of the -dependency of the confined-deconfined interface tension and latent heat in pure SU() gauge theory at large . The interface…
Evaluating matrix power series with the Cayley-Hamilton theorem
Tobias Rindlisbacher
The Cayley-Hamilton theorem is used to implement an iterative process for the efficient numerical computation of matrix power series and their differentials. In addition to straigh…
Improved Dirichlet boundary conditions for lattice gauge-fermion theories
Tobias Rindlisbacher, Kari Rummukainen, Ahmed Salami
Hybrid Monte Carlo (HMC) simulations of lattice gauge theories with fermionic matter rely on the invertibility of the lattice Dirac operator. Near-zero modes of the latter can ther…
Broken Symmetry and Fractionalized Flux Strings in a Staggered U(1) Pure Gauge Theory
A. Banerjee, D. Banerjee, G. Kanwar +3
Inspired by self-adjoint extensions of the electric field operator in the Hamiltonian formalism, we extend the Wilsonian framework of Abelian lattice gauge theory by introducing a…
Bulk-preventing actions for SU(N) gauge theories
Tobias Rindlisbacher, Kari Rummukainen, Ahmed Salami
Lattice gauge field theories may suffer from unphysical "bulk" phase transitions at strong lattice gauge coupling. We introduce a one-parameter family of lattice SU(N) gauge action…
A New Type of Lattice Gauge Theory through Self-adjoint Extensions
A. Banerjee, D. Banerjee, G. Kanwar +3
A generalization of Wilsonian lattice gauge theory may be obtained by considering the possible self-adjoint extensions of the electric field operator in the Hamiltonian formalism.…
Improved lattice method for determining entanglement measures in SU(N) gauge theories
Tobias Rindlisbacher, Niko Jokela, Arttu Pönni +2
The determination of entanglement measures in SU(N) gauge theories is a non-trivial task. With the so-called "replica trick", a family of entanglement measures, known as "Rényi ent…
SU(2) gauge theory with quarks at non-zero mass
Jarno Rantaharju, Tobias Rindlisbacher, Kari Rummukainen +2
We study SU(2) gauge field theory with quarks. The theory is asymptotically non-free and, at vanishing quark mass, governed by a Gaussian fixed point at long distances. On…
Bulk-preventing actions for SU(N) gauge theories
Tobias Rindlisbacher, Kari Rummukainen, Ahmed Salami
We introduce a one-parameter family of SU(N) gauge actions which, when used in combination with an HMC update algorithm, prevent the gauge system from entering an artificial bulk-"…
Non-perturbative decoupling of massive fermions
Tobias Rindlisbacher, Kari Rummukainen, Ahmed Salami +1
SU(2) gauge theory with Nf=24 massless fermions is non-interacting at long distances, i.e. it has an infrared fixed point at vanishing coupling. With massive fermions the fermions…
Spectrum of SU(2) gauge theory at large number of flavors
Jarno Rantaharju, Tobias Rindlisbacher, Kari Rummukainen +2
We present a numerical study of the spectrum of an asymptotically non-free gauge theory with massive fermion flavors. For such large number of flavors, asymptotic…
Infinite-range correlations in 1D systems with continuous symmetry
Tobias Rindlisbacher
O(N)-symmetric lattice scalar fields are considered, coupled to a chemical potential and source terms. At the example of N=2, it is shown that such systems can even in (0+1) dimens…
Safety versus triviality on the lattice
Viljami Leino, Tobias Rindlisbacher, Kari Rummukainen +2
We present the first numerical study of the ultraviolet dynamics of non-asymptotically free gauge-fermion theories at large number of matter fields. As testbed theories we consider…
Spin models in complex magnetic fields: a hard sign problem
Philippe de Forcrand, Tobias Rindlisbacher
Coupling spin models to complex external fields can give rise to interesting phenomena like zeroes of the partition function (Lee-Yang zeroes, edge singularities) or oscillating pr…
A Worm Algorithm for the Lattice CP(N-1) Model
Tobias Rindlisbacher, Philippe de Forcrand
The CP(N-1) model in 2D is an interesting toy model for 4D QCD as it possesses confinement, asymptotic freedom and a non-trivial vacuum structure. Due to the lower dimensionality a…
Worm Algorithm for CP(N-1) Model
Tobias Rindlisbacher, Philippe de Forcrand
The CP(N-1) model in 2D is an interesting toy model for 4D QCD as it possesses confinement, asymptotic freedom and a non-trivial vacuum structure. Due to the lower dimensionality a…
Sampling of General Correlators in Worm Algorithm-based Simulations
Tobias Rindlisbacher, Oscar Akerlund, Philippe de Forcrand
Using the complex -model as a prototype for a system which is simulated by a worm algorithm, we show that not only the charged correlator , but also more gener…
Oscillating propagators in heavy-dense QCD
Oscar Akerlund, Philippe de Forcrand, Tobias Rindlisbacher
Using Monte Carlo simulations and extended mean field theory calculations we show that the -dimensional spin model with complex external fields has non-monotonic spatial c…
Lattice simulation of the SU(2) chiral model at zero and non-zero pion density
Tobias Rindlisbacher, Philippe de Forcrand
We propose a flux representation based lattice formulation of the partition function corresponding to the SU(2) principal chiral Lagrangian, including a chemical potential and scal…
Two-Flavor Lattice QCD with a Finite Density of Heavy Quarks: Heavy-Dense Limit and "Particle-Hole" Symmetry
Tobias Rindlisbacher, Philippe de Forcrand
We investigate the properties of the half-filling point in lattice QCD (LQCD), in particular the disappearance of the sign problem and the emergence of an apparent particle-hole sy…
Euclidean Dynamical Triangulation revisited: is the phase transition really 1st order? (extended version)
Tobias Rindlisbacher, Philippe de Forcrand
The transition between the two phases of 4D Euclidean Dynamical Triangulation [1] was long believed to be of second order until in 1996 first order behavior was found for sufficien…
Euclidean Dynamical Triangulation revisited: is the phase transition really first order?
Tobias Rindlisbacher, Philippe de Forcrand
The transition between the two phases of 4D Euclidean Dynamical Triangulation [1] was long believed to be of second order until in 1996 first order behavior was found for sufficien…