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セミナー/宇宙物理学セミナー/2023-10-05
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開始行:
Speaker:  Shinji Mukohyama (Kavli IPMU)
Date: 14:00, Monday March 4
Title: From configuration to dynamics -- Emergence of Lor...
in classical field theory
Abstract: The Lorentzian metric structure used in any fie...
allows one to implement the relativistic notion of causal...
define a notion of time dimension. This article investiga...
possibility that at the microscopic level the metric is R...
locally Euclidean, and that the Lorentzian structure, tha...
consider as fundamental, is in fact an effective property...
in some regions of a 4-dimensional space with a positive ...
metric. In such a model, there is no dynamics nor signatu...
some hypersurface; instead, all the fields develop a Lore...
in these regions because they propagate in an effective m...
shown that one can construct a decent classical field the...
scalars, vectors and (Dirac) spinors in flat spacetime. I...
that gravity can be included but that the theory for the ...
Lorentzian metric is not general relativity but of the co...
Galileon type. The constraints arising from stability, th...
principle and the constancy of fundamental constants are ...
phenomenological picture of the emergence of the Lorentzi...
also given. The construction, while restricted to classic...
this article, offers a new view on the notion of time.
終了行:
Speaker:  Shinji Mukohyama (Kavli IPMU)
Date: 14:00, Monday March 4
Title: From configuration to dynamics -- Emergence of Lor...
in classical field theory
Abstract: The Lorentzian metric structure used in any fie...
allows one to implement the relativistic notion of causal...
define a notion of time dimension. This article investiga...
possibility that at the microscopic level the metric is R...
locally Euclidean, and that the Lorentzian structure, tha...
consider as fundamental, is in fact an effective property...
in some regions of a 4-dimensional space with a positive ...
metric. In such a model, there is no dynamics nor signatu...
some hypersurface; instead, all the fields develop a Lore...
in these regions because they propagate in an effective m...
shown that one can construct a decent classical field the...
scalars, vectors and (Dirac) spinors in flat spacetime. I...
that gravity can be included but that the theory for the ...
Lorentzian metric is not general relativity but of the co...
Galileon type. The constraints arising from stability, th...
principle and the constancy of fundamental constants are ...
phenomenological picture of the emergence of the Lorentzi...
also given. The construction, while restricted to classic...
this article, offers a new view on the notion of time.
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