Zobrazeno 1 - 10
of 17 666
pro vyhledávání: '"P Goldstone"'
Autor:
Tomchenko, Maksim
It is generally accepted that phonons in a superfluid Bose gas are Goldstone bosons. This is justified by spontaneous symmetry breaking (SSB), which is usually defined as follows: the Hamiltonian of the system is invariant under the $U(1)$ transforma
Externí odkaz:
http://arxiv.org/abs/2501.00893
The one-dimensional flat-band ferromagnetic Tasaki model exhibits spontaneous symmetry breaking from ${\rm SU}(2)$ to ${\rm U}(1)$ with one type-B Goldstone mode, featuring that the highest weight state is entangled at quarter filling, but there is a
Externí odkaz:
http://arxiv.org/abs/2412.15724
By using the holographic approach, we investigate the interplay between the order parameter and Goldstone modes in the real-time dynamics of the chiral phase transition. By quenching the system to a different thermal bath and obtaining different kind
Externí odkaz:
http://arxiv.org/abs/2412.11746
Autor:
Abe, Tomohiro, Ichiki, Kota
We investigate a pseudo-Nambu-Goldstone (pNG) dark matter (DM) model based on a gauged $SU(2)_x$ and a global $SU(2)_g$ symmetries. These symmetries are spontaneously broken to a global $U(1)_D$ symmetry by a vacuum expectation value of an $SU(2)_x \
Externí odkaz:
http://arxiv.org/abs/2411.15755
Autor:
Liu, Bang, Zhang, Li-Hua, Wang, Ya-Jun, Zhang, Jun, Wang, Qi-Feng, Ma, Yu, Han, Tian-Yu, Zhang, Zheng-Yuan, Shao, Shi-Yao, Li, Qing, Chen, Han-Chao, Nan, Jia-Dou, Zhu, Dong-Yang, Yin, Yi-Ming, Shi, Bao-Sen, Ding, Dong-Sheng
Higgs and Goldstone modes manifest as fluctuations in the order parameter of system, offering insights into its phase transitions and symmetry properties. Exploring the dynamics of these collective excitations in a Rydberg atoms system advances vario
Externí odkaz:
http://arxiv.org/abs/2410.06047
Autor:
Manjunath, Naren, Else, Dominic V.
We consider systems in which a continuous symmetry $G$, which may be anomalous, is spontaneously broken to an anomaly-free subgroup $H$ such that the effective action for the Goldstone modes contains topologically non-trivial terms. If the original s
Externí odkaz:
http://arxiv.org/abs/2410.05268
We present a general framework to implement massive Nambu-Goldstone quasi-particles in driven many-body systems. The underlying mechanism leverages an explicit Lie group structure imprinted into an effective Hamiltonian that governs the dynamics of s
Externí odkaz:
http://arxiv.org/abs/2409.01902
Autor:
Ota, Atsuhisa
We conduct a mode analysis of a general U(1)-charged first-order relativistic hydrodynamics within the framework of the effective field theory of dissipative fluids in a Minkowski background. The most general quadratic action for collective excitatio
Externí odkaz:
http://arxiv.org/abs/2410.23837
Autor:
Radošević, Slobodan
A coordinate-free formulation of first order effective field theory, in which Nambu-Goldstone fields are described as sections on associated bundle, is presented. This construction, which is based only on symmetry considerations, allows for a direct
Externí odkaz:
http://arxiv.org/abs/2406.13643
It is well known that massless Goldstone bosons have not yet been observed. In the Goldstone boson model, after the spontaneous symmetry breaking under $U(1)$, two coupled nonlinear equations are obtained for which we present the exact solitonic solu
Externí odkaz:
http://arxiv.org/abs/2406.12341