Speed limit in internal space of domain walls via all-order effective action of moduli motion
Speed limit in internal space of domain walls via all-order effective action of moduli motion
复制标题
通过模运动的全阶有效作用限制畴壁内部空间的速度
DOI:
10.1103/physrevd.93.065058
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Minoru Eto and Koji Hashimoto
中科院分区:
文献类型:
--
作者:
Koji Hashimoto;Keiju Murata, Kentaroh Yoshida;Minoru Eto and Koji Hashimoto
We find that motion in internal moduli spaces of generic domain walls has an upper bound for its velocity. Our finding is based on our generic formula for all-order effective actions of internal moduli parameter of domain wall solitons. It is known that the Nambu-Goldstone modeassociated with spontaneous breaking of translation symmetry obeys a Nambu-Goto effective Lagrangiandetecting the speed of light () in the target spacetime. Solitons can have internal moduli parameters as well, associated with a breaking of internal symmetries such as a phase rotation acting on a field. We obtain, for generic domain walls, an effective Lagrangian of the internal modulito all orders in. The Lagrangian is given by a function of the Nambu-Goto Lagrangian: L=g(1+(∂με)2). This shows generically the existence of an upper bound on, i.e., a speed limit in the internal space. The speed limit exists even for solitons in some nonrelativistic field theories, where we find thatis a type I Nambu-Goldstone mode that also obeys a nonlinear dispersion to reach the speed limit. This offers a possibility of detecting the speed limit in condensed matter experiments.
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影响因子:
5
作者:
J. Gauntlett;R. Portugués;D. Tong;P. Townsend
通讯作者:
P. Townsend
DOI:
10.1142/9789812702173_0001
发表时间:
2005
期刊:
--
影响因子:
--
作者:
Y. Nambu
通讯作者:
Y. Nambu
DOI:
10.1103/physrevd.63.064006
发表时间:
2000
期刊:
--
影响因子:
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作者:
G.W.Gibbons;C.A.R.Herdeiro
通讯作者:
C.A.R.Herdeiro
DOI:
--
发表时间:
2003
期刊:
--
影响因子:
--
作者:
D. Tong
通讯作者:
D. Tong
影响因子:
5.4
作者:
M. Eto
通讯作者:
M. Eto