Zobrazeno 1 - 10
of 509
pro vyhledávání: '"Doi Takahiro"'
Autor:
Aoyama, Tatsumi, Doi, Takahiro M., Doi, Takumi, Itou, Etsuko, Lyu, Yan, Murakami, Kotaro, Sugiura, Takuya
We report scale setting and hadronic properties for our new lattice QCD gauge configuration set (HAL-conf-2023). We employ $(2+1)$-flavor nonperturbatively improved Wilson fermions with stout smearing and the Iwasaki gauge action on a $96^4$ lattice,
Externí odkaz:
http://arxiv.org/abs/2406.16665
Autor:
Tsutsui Shoichiro, Doi Takahiro M.
Publikováno v:
EPJ Web of Conferences, Vol 175, p 11016 (2018)
The QCD at finite density is not well understood yet, where standard Monte Carlo simulation suffers from the sign problem. In order to overcome the sign problem, the method of Lefschetz thimble has been explored. Basically, the original sign problem
Externí odkaz:
https://doaj.org/article/3958fe0fe8ed41fe808fcd5f62916381
Autor:
Doi Takahiro M., Kashiwa Kouji
Publikováno v:
EPJ Web of Conferences, Vol 175, p 12003 (2018)
The quark number density at finite imaginary chemical potential is investigated in the lattice QCD using the Dirac-mode expansion. We find the analytical formula of the quark number density in terms of the Polyakov loop in the large quark mass regime
Externí odkaz:
https://doaj.org/article/8eb09a912d0c41e7bb1b4521188d2b1b
Publikováno v:
Symmetry 15, 333 (2023)
We discuss the hadron--quark crossover accompanied by the formation of Cooper triples (three-body counterpart of Cooper pairs) by analogy with the Bose--Einstein condensate to Bardeen--Cooper--Schrieffer crossover in two-component fermionic systems.
Externí odkaz:
http://arxiv.org/abs/2211.14194
Publikováno v:
EPJ Web of Conferences, Vol 137, p 04003 (2017)
We analytically study the relation between quark confinement and spontaneous chiral-symmetry breaking in QCD. In terms of the Dirac eigenmodes, we derive some formulae for the Polyakov loop, its fluctuations, and the string tension from the Wilson lo
Externí odkaz:
https://doaj.org/article/2658138c30cd4d3bbe0517a7b2fb5c93
The nuclear forces are determined by combining the HAL QCD method and a new type of source smearing technique. The new smearing is a projection to a space spanned by the lowest-lying eigenvectors of the free Laplacian operator on a lattice, which ena
Externí odkaz:
http://arxiv.org/abs/2202.12532
Publikováno v:
EPJ Web of Conferences, Vol 126, p 04016 (2016)
Dirac spectrum representations of the Polyakov loop fluctuations are derived on the temporally odd-number lattice, where the temporal length is odd with the periodic boundary condition. We investigate the Polyakov loop fluctuations based on these ana
Externí odkaz:
https://doaj.org/article/94c32b30d0964da2baba779d2cad1f9c
Publikováno v:
Phys. Rev. A 104, 053328 (2021)
We theoretically investigate ground-state properties of a three-component Fermi gas with pairwise contact interactions between different components near a triatomic resonance where bound trimers are about to appear. Using variational equations for in
Externí odkaz:
http://arxiv.org/abs/2107.13232
Publikováno v:
Phys. Rev. A 104, 023319 (2021)
We elucidate universal many-body properties of a one-dimensional, two-component ultracold Fermi gas near the $p$-wave Feshbach resonance. The low-energy scattering in this system can be characterized by two parameters, that is, $p$-wave scattering le
Externí odkaz:
http://arxiv.org/abs/2106.12909