Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Kiyoharu Kawana"'
Autor:
Kiyoharu Kawana
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-22 (2024)
Abstract We propose a field theory of closed p-brane C p interacting with a (p + 1)-form gauge field A p+1. This is a generalization of the Ginzburg-Landau theory (Abelian-Higgs model) for superconducting particles to higher-dimensional superconducti
Externí odkaz:
https://doaj.org/article/dea3e926b73c42fea6d4bffc2cfe29ed
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-24 (2024)
Abstract We investigate a structure of a 4-dimensional bulk space constructed from the O(N) invariant critical φ 4 model in 3-dimension using the conformal smearing. We calculate a bulk metric corresponding to the information metric and the bulk-to-
Externí odkaz:
https://doaj.org/article/f9c0ee319ee84d92afb65980df03b12d
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-27 (2024)
Abstract Q-balls are non-topological solitons in field theories whose stability is typically guaranteed by the existence of a global conserved charge. A classic realization is the Friedberg-Lee-Sirlin (FLS) Q-ball in a two-scalar system where a real
Externí odkaz:
https://doaj.org/article/6362816673bf44639cc846a46783142a
Autor:
Yoshimasa Hidaka, Kiyoharu Kawana
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-34 (2024)
Abstract We propose an effective field theory for branes with higher-form symmetry as a generalization of ordinary Landau theory, which is an extension of the previous work by Iqbal and McGreevy for one-dimensional objects to an effective theory for
Externí odkaz:
https://doaj.org/article/37dbc32dc84a4160b2b8e6f266ae3938
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-23 (2022)
Abstract The validity of the Coleman mechanism, which automatically tunes the fundamental constants, is examined in two-dimensional and four-dimensional quantum gravity theories. First, we consider two-dimensional Euclidean quantum gravity on orienta
Externí odkaz:
https://doaj.org/article/8f8761fe301f4a8f8a41e8e7925ae3d7
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 5, Pp 1-12 (2022)
Abstract The multicritical-point principle (MPP) provides a natural explanation of the large hierarchy between the Planck and electroweak scales. We consider a scenario in which MPP is applied to the Standard Model extended by two real singlet scalar
Externí odkaz:
https://doaj.org/article/35f02d6f3de246b3a559ee540008cd1b
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-18 (2021)
Abstract We propose a minimal model that can explain the electroweak scale, neutrino masses, Dark Matter (DM), and successful inflation all at once based on the multicritical-point principle (MPP). The model has two singlet scalar fields that realize
Externí odkaz:
https://doaj.org/article/f4bc97a587d544298a9b5f3788ae9564
Autor:
Kiyoharu Kawana, Ke-Pan Xie
Publikováno v:
Physics Letters B, Vol 824, Iss , Pp 136791- (2022)
We propose a novel primordial black hole (PBH) formation mechanism based on a first-order phase transition (FOPT). If a fermion species gains a huge mass in the true vacuum, the corresponding particles get trapped in the false vacuum as they do not h
Externí odkaz:
https://doaj.org/article/1e47795b906d4cbea01268dc606381dd
Autor:
Kiyoharu Kawana, Katsuta Sakai
Publikováno v:
Physics Letters B, Vol 778, Iss C, Pp 60-63 (2018)
Recently a new inflationary scenario was proposed in [1] which can be applicable to an inflaton having multiple vacua. In this letter, we consider a more general situation where the inflaton potential has a (UV) saddle point around the Planck scale.
Externí odkaz:
https://doaj.org/article/c594703f304d4ff9998918f22f57b4c6
Autor:
Satoshi Iso, Kiyoharu Kawana
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 3, Pp 1-20 (2018)
Abstract Improving the effective action by the renormalization group (RG) with several mass scales is an important problem in quantum field theories. A method based on the decoupling theorem was proposed in [1] and systematically improved [2] to take
Externí odkaz:
https://doaj.org/article/c2c4704a514d41c5a5aed6c9e95447ee