The 9th Asian Triangle Heavy-Ion Conference (ATHIC 2023)

(1+1)-dimensional QCD at finite density with matrix product states

26 Apr 2023, 15:05

25m

Multi-Purpose Studio, 2nd Floor (JMS Aster Plaza)

Oral QCD phase diagram and extreme states Parallel Session C

Speaker

Tomoya Hayata (Keio University)

Description

We study the zero-temperature and finite-density phase of QCD in 1+1 dimensions on the basis of Hamiltonian lattice QCD and matrix product states. We variationally approximate the wave function of the ground state with nonzero chemical potential using the density matrix renormalization group and compute physical observables such as equation of state, chiral condensate, and quark distribution function, where conventional lattice QCD simulations suffer from the sign problem. Physical implication of our results is also discussed.

Presentation materials

athic20230426.pdf