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Publications Influence

Determining the conformal window: SU(2) gauge theory with Nf = 4, 6 and 10 fermion flavours

- Tuomas Karavirta, J. Rantaharju, K. Rummukainen, K. Tuominen
- Physics
- 17 November 2011

A bstractWe study the evolution of the coupling in SU(2) gauge field theory with Nf = 4, 6 and 10 fundamental fermion flavours on the lattice. These values are chosen close to the expected edges of… Expand

51 2- PDF

Sp(4) gauge theories on the lattice: quenched fundamental and antisymmetric fermions

- E. Bennett, D. Hong, +6 authors Davide Vadacchino
- Physics
- 13 December 2019

We perform lattice studies of meson mass spectra and decay constants of the $Sp(4)$ gauge theory in the quenched approximation. We consider two species of (Dirac) fermions as matter field content,… Expand

11 2- PDF

Non-perturbatively improved clover action for SU(2) gauge + fundamental and adjoint representation fermions

- Anne Mykkanen, J. Rantaharju, +4 authors Helsinki Institute of Physics University of Jyvaskyla
- Physics
- 8 November 2010

The research of strongly coupled beyond-the-standard-model theories has generated significant interest in non-abelian gauge field theories with different number of fermions in different… Expand

10 2- PDF

Spectrum of SU(2) lattice gauge theory with two adjoint Dirac flavours

- A. Hietanen, J. Rantaharju, K. Rummukainen, K. Tuominen
- Physics
- 8 December 2008

An SU(2) gauge theory with two fermions transforming under the adjoint representation of the gauge group may appear conformal or almost conformal in the infrared. We use lattice simulations to study… Expand

94 1- PDF

Ideal walking dynamics via a gauged NJL model

- J. Rantaharju, C. Pica, Francesco Sannino
- Physics
- 12 April 2017

According to the Ideal Walking Technicolor paradigm large mass anomalous dimensions arise in gauged Nambu--Jona-Lasinio (NJL) models when the four-fermion coupling is sufficiently strong to induce… Expand

7 1- PDF

A simple method to optimize HMC performance

- A. Bussone, M. Morte, +4 authors C. Pica
- Physics
- 10 October 2016

TLDR

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Benchmark results in the 2D lattice Thirring model with a chemical potential

- Venkitesh Ayyar, S. Chandrasekharan, J. Rantaharju
- Physics
- 21 November 2017

We study the two dimensional lattice Thirring model in the presence of a fermion chemical po- tential. Our model is asymptotically free, contains massive fermions that mimic a baryon and light bosons… Expand

9- PDF

University of Southern Denmark Nambu-Jona-Lasinio model with Wilson fermions Rantaharju,

- J. Rantaharju, V. Drach, C. Pica, F. Sannino
- 2017

• You may download this work for personal use only. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL… Expand

Conformal window in SU(2) with fundamental fermions

- Viljami Leino, J. Rantaharju, +4 authors Sara Tahtinen
- Physics
- 18 October 2017

We present the updated results of the infrared behavior of the SU(2) 6 and 8 fundamental representation fermions. We use the gradient flow method with the Schr\"odinger functional boundary conditions… Expand

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N ov 2 01 5 Wilson Fermions with Four Fermion Interactions

We present a lattice study of a four fermion theory, known as N mbu Jona-Lasinio (NJL) theory, via Wilson fermions. Four fermion interactions natura lly occur in several extensions of the Standard… Expand