New lattice study of SU(2) gauge theories coupled to multiple Higgs doublet

Atsuki Hiraguchi^1,2*, Guilherme T. R. Catumba³, Wei-Shu Hou⁴, Karl Jansen⁵, Ying-Jer Kao⁴, C.-J. David Lin¹, Alberto Ramos³, Mugdha Sarkar⁴

¹Institute of Physics, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
²Department of Mathematics and Physics, Kochi University, Kochi, Japan
³Instituto de Física Corpuscular (IFIC), CSIC-Universitat de Valencia, Valencia, Spain
⁴Department of Physics, National Taiwan University, Taipei, Taiwan
⁵Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany

* Presenter:Atsuki Hiraguchi, email:a.hiraguchi@nycu.edu.tw

Lattice field theory is one of the most important methods to access non-perturbative property of quantum field theory. SU(2)+Higgs model, which describes several important phenomena of particle physics and condensed matter physics, has been investigated using Monte-Carlo simulation for many years. In this talk, we discuss phase structure of SU(2)+multiple Higgs model. Especially we show exploratory results for zero-temperature phase structure.

Keywords: Lattice field theory, two Higgs doublet models, superconductivity