Published in Communications in Theoretical Physics
Based on a soliton hierarchy associated with so(3,R) , we construct two integrable nonlocal PT-symmetric generalized mKdV equations. The key step is to formulate two nonlocal reverse-spacetime similarity transformations for the involved spectral matrix, and therefore, integrable nonlocal complex and real reverse-spacetime generalized so(3,R) -mKdV ...
Published in Communications in Theoretical Physics
We study the energy issue in critical collapse. It is found that in critical collapse, the contribution from the material energy is greater than that from the gravitational energy. The quantity m/r plays an important role in identifying the formation of an apparent horizon in gravitational collapse, where m is the Misner–Sharp mass and r is the are...
Published in Communications in Theoretical Physics
We study the existence and stability of envelope solitons on a continuous-wave background in a non-Kerr quintic optical material exhibiting a self-steepening effect. Light propagation in such a nonlinear medium is governed by the Gerdjikov–Ivanov equation. We find that the system supports a variety of localized waveforms exhibiting an important fre...
Published in Communications in Theoretical Physics
In this paper, we analyze thin-shell wormholes from two identical copies of charged static cylindrically symmetric spacetimes using Visser’s ‘cut and paste’ approach under the influence of f(R, T) gravity Harko, Lobo, Nojiri, and Odintsov (2011, Phys. Rev. D 84, 024020). In this scenario, the modified Chaplygin gas supports the exotic matter in the...
Published in Communications in Theoretical Physics
In this paper, the local fractional natural decomposition method (LFNDM) is used for solving a local fractional Poisson equation. The local fractional Poisson equation plays a significant role in the study of a potential field due to a fixed electric charge or mass density distribution. Numerical examples with computer simulations are presented in ...
Published in Communications in Theoretical Physics
The nuclear modification factor for prompt photon production in proton–nucleus collisions is investigated within color dipole formalism. By means of the Glauber–Gribov approach, the nuclear effects are studied in various rapidity bins with the evolution equation-based saturation models and the phenomenological dipole models. The theoretical results...
Published in Communications in Theoretical Physics
Fusion and fission are two important phenomena that have been experimentally observed in many real physical models. In this paper, we investigate the two phenomena in the (2+1)-dimensional Hirota–Satsuma–Ito equation via the physics-informed neural networks (PINN) method. By choosing suitable physically constrained initial boundary conditions, the ...
Published in Communications in Theoretical Physics
We study phase behaviors of mixtures comprising active particles with and without active reorientation by varying mixing ratios. We observe that the order parameter characterizing flocking in the steady state exhibits a linear decrease with an increase in mixing ratio. While the order parameter characterizing clustering in the steady state presents...
Published in Communications in Theoretical Physics
We present a family of graphical representations for the O(N) spin model, where N ≥ 1 represents the spin dimension, and N = 1, 2, 3 corresponds to the Ising, XY and Heisenberg models, respectively. With an integer parameter 0 ≤ ℓ ≤ N/2, each configuration is the coupling of ℓ copies of subgraphs consisting of directed flows and N − 2ℓ copies of su...
Published in Communications in Theoretical Physics
The potential of muon colliders opens up new possibilities for the exploration of new physics beyond the Standard Model. It is worthwhile to investigate whether muon colliders are suitable for studying gluonic quartic gauge couplings (gQGCs), which can be contributed by dimension-8 operators in the framework of the Standard Model effective field th...
