Zobrazeno 1 - 10
of 7 784
pro vyhledávání: '"symmetry operators"'
We argue that topological operators for continuous symmetries written in terms of currents need regularization, which effectively gives them a small but finite width. The regulated operator is a finite tension object which fluctuates. In the zero-wid
Externí odkaz:
http://arxiv.org/abs/2411.08858
Autor:
Gray, Finnian, Kubiznak, David
Publikováno v:
Phys. Rev. D 109, 084027, April 2024
It is well known that the Kerr--NUT--AdS spacetimes possess hidden symmetries encoded in the so-called principal Killing--Yano tensor. In this paper, focusing on the four-dimensional case, we obtain a number of symmetry operators for scalar, vector,
Externí odkaz:
http://arxiv.org/abs/2401.03553
Autor:
Rath, Biswanath1 biswanathrath10@gmail.com, Jarrar, Rabab2 r.jarrar@ptuk.edu.ps, Shanak, Hussein2 h.shanak@ptuk.edu.ps, Wannan, Rania3 r.wannan@ptuk.edu.ps, Asad, Jihad2 j.asad@ptuk.edu.ps
Publikováno v:
European Journal of Pure & Applied Mathematics. Jul2023, Vol. 16 Issue 3, p2005-2008. 4p.
Publikováno v:
SciPost Phys. 15, 155 (2023)
We explore non-invertible symmetries in two-dimensional lattice models with subsystem $\mathbb Z_2$ symmetry. We introduce a subsystem $\mathbb Z_2$-gauging procedure, called the subsystem Kramers-Wannier transformation, which generalizes the ordinar
Externí odkaz:
http://arxiv.org/abs/2304.09886
The modern approach to $m$-form global symmetries in a $d$-dimensional quantum field theory (QFT) entails specifying dimension $d-m-1$ topological generalized symmetry operators which non-trivially link with $m$-dimensional defect operators. In QFTs
Externí odkaz:
http://arxiv.org/abs/2209.03343
Autor:
Jacobsson, Simon, Bäckdahl, Thomas
Publikováno v:
2023 Class. Quantum Grav. 40 045009
Employing the covariant language of two-spinors, we find what conditions a curved Lorentzian spacetime must satisfy for existence of a second order symmetry operator for the massive Dirac equation. The conditions are formulated as existence of a set
Externí odkaz:
http://arxiv.org/abs/2210.05216
Autor:
Obukhov, V. V.
Publikováno v:
Symmetry. 2022, 14, 346
The algebras of the symmetry operators for the Hamilton-Jacobi and Klein-Gordon-Fock equations are found for a charged test particle moving in an external electromagnetic field in a spacetime manifold, on the isotropic (null) hypersurface of which a
Externí odkaz:
http://arxiv.org/abs/2201.10120
Publikováno v:
Proceedings: Mathematical, Physical and Engineering Sciences, 2000 Nov 01. 456(2003), 2629-2643.
Externí odkaz:
https://www.jstor.org/stable/2665449
Autor:
Xie, You-Fei, Chen, Qing-Hu
Publikováno v:
J. Phys. A: Math. Theor. 55, 225306 (2022)
The true level crossing in the asymmetric quantum Rabi model without any obvious symmetry can be exhibited in the energy spectrum if the qubit bias is a multiple of the cavity frequency, which should imply the existence of the hidden symmetry. In thi
Externí odkaz:
http://arxiv.org/abs/2107.08937
Autor:
Xie, You-Fei, Chen, Qing-Hu
Publikováno v:
J. Phys. A: Math. Theor. 55, 425204(2022)
The true level crossings in a subspace of the asymmetric two-photon quantum Rabi model (tpQRM) have been observed when the bias parameter of qubit is an even multiple of the renormalized cavity frequency. Generally, such level crossings imply the exi
Externí odkaz:
http://arxiv.org/abs/2106.05817