Zobrazeno 1 - 10
of 189
pro vyhledávání: '"Yamamoto, Arata"'
Autor:
Hidaka, Yoshimasa, Yamamoto, Arata
$\mathbb{Z}_3$ lattice gauge theory is the simplest discrete gauge theory with three-quark bound states, i.e., baryons. Since it has a finite-dimensional Hilbert space, it can be used for testing quantum simulation of lattice gauge theory at nonzero
Externí odkaz:
http://arxiv.org/abs/2409.17349
Simulating nonequilibirum dynamics of a quantum many-body system is one of the promising applications of quantum computing. We simulate the time evolution of one-dimensional ${\bf Z}_2$ lattice gauge theory on IBM's superconducting 156-qubit device i
Externí odkaz:
http://arxiv.org/abs/2408.10079
Publikováno v:
Phys. Rev. D 109, 114502 (2024)
We propose the $(3+1)$-dimensional $\mathbb{Z}_3$ lattice gauge theory coupled with the 2-flavor Wilson-Dirac fermion as a toy model for studying quantum chromodynamics (QCD) at nonzero density. We study its phase diagram in the space of the lattice
Externí odkaz:
http://arxiv.org/abs/2404.07595
Quantum computation often suffers from artificial symmetry breaking. We should strive to suppress the artifact both by theoretical and technological improvements. The theoretical formalism of the lattice fermion with exact chiral symmetry is called t
Externí odkaz:
http://arxiv.org/abs/2309.10507
Publikováno v:
Phys. Rev. D 109, 034501 (2024)
We discuss the quantum computation of dynamical chirality production in lattice gauge theory. Although the chirality of a lattice fermion is complicated in general dimensions, it can be simply formulated on a one-dimensional lattice. The chiral fermi
Externí odkaz:
http://arxiv.org/abs/2309.08820
Publikováno v:
Phys. Rev. D 108, 034511 (2023)
We discuss the chiral fermion in the Hamiltonian formalism of lattice gauge theory. Although the naive chiral charge operator does not commute with the Hamiltonian, the commutable one can be defined for the overlap fermion. The eigenvalues of the ene
Externí odkaz:
http://arxiv.org/abs/2305.18934
Autor:
Yamamoto, Arata, Doi, Takumi
Publikováno v:
PTEP 2024 (2024) 3, 033D02
One of the ultimate missions of lattice QCD is to simulate atomic nuclei from the first principle of the strong interaction. This is an extremely hard task for the current computational technology, but might be reachable in coming quantum computing e
Externí odkaz:
http://arxiv.org/abs/2211.14550
Autor:
Yamamoto, Arata
Publikováno v:
Phys. Rev. D 105, 094501 (2022)
Although the Hamiltonian formalism is so far favored for quantum computation of lattice gauge theory, the path integral formalism would never be useless. The advantages of the path integral formalism are the knowledge and experience accumulated by cl
Externí odkaz:
http://arxiv.org/abs/2201.12556
Autor:
Yamamoto, Arata
Publikováno v:
PoS LATTICE2021 (2022) 122
Lattice QCD at nonzero baryon density is a big challenge in hadron physics. In this presentation, I discuss the quantum computation of lattice gauge theory at nonzero density. I show some benchmark results of the Schwinger model obtained by the quant
Externí odkaz:
http://arxiv.org/abs/2111.05330
Publikováno v:
PTEP 2022 (2022) 053B03
We perform the real-time lattice simulation of an open quantum system, which is based on the Schwinger-Keldysh path integral representation of the Lindblad formalism. Although the real-time simulation generally suffers from the sign problem, there ex
Externí odkaz:
http://arxiv.org/abs/2111.04937