Related papers: Magnetic field in vacuum of quantum spinor matter induced by a cosmic string in three-dimensional space

Magnetic field in vacuum of quantum spinor matter induced by a cosmic string in three-dimensional space

URL: http://arxiv.org/abs/2511.00236v1
Date: Fri, 31 Oct 2025 20:13:54 GMT
Title: Magnetic field in vacuum of quantum spinor matter induced by a cosmic string in three-dimensional space
Authors: Yu. I. Pylypchuk, P. O. Nakaznyi, O. V. Barabash, A. O. Zaporozhchenko, V. M. Gorkavenko,
Abstract summary: A linear magnetic topological defect (cosmic string) is modeled as a magnetic flux-carrying tube that is impenetrable to external spinor matter.<n>The matter field is quantized in the background of this tube, with the most general set of boundary conditions.<n>We compute the induced vacuum magnetic flux along the tube in (3+1)-dimensional space-time.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: A linear magnetic topological defect (cosmic string) is modeled as a magnetic flux-carrying tube that is impenetrable to external spinor matter. The matter field is quantized in the background of this tube, with the most general set of boundary conditions ensuring both the tube's impenetrability and the self-adjointness of the Dirac Hamiltonian operator. We compute the induced vacuum magnetic flux along the tube in (3+1)-dimensional space-time. It was shown that the requirement for the total induced vacuum magnetic flux to be finite restricts the admissible boundary conditions to only one choice: the MIT quark bag boundary condition. The dependence of the effect on the transverse size of the tube and the flux inside the tube was also analyzed.

Related papers

Wave packet description of Majorana neutrino oscillations in a magnetic field [78.29352305480285]
Majorana neutrino oscillations in a magnetic field are considered using the wave packets formalism.<n>The modified Dirac equation for Majorana neutrinos with non-zero transition magnetic moments propagating in a magnetic field is solved analytically.
arXiv Detail & Related papers (2026-02-02T21:02:34Z)
Impact of space-time curvature coupling on the vacuum energy induced by a magnetic topological defect in flat space-time of arbitrary dimension [0.0]
In flat space-time, the total induced vacuum energy is independent of the coupling $xi$ of the scalar field's interaction with the space-time curvature.<n>For general Robin boundary conditions, however, the total induced vacuum energy depends on the coupling $xi$ in a flat space-time.
arXiv Detail & Related papers (2025-09-08T15:50:38Z)
Controllable and Continuous Quantum Phase Transitions in Intrinsic Magnetic Topological Insulator [50.54133633499971]
We study the intrinsic magnetic topological material MnBi2Te4 in which the heavy n-type doping features are strongly suppressed.<n>Based on angle-resolved photoemission spectroscopy, transport measurements, and first-principles calculations, we reveal two magnetism-induced TPTs.<n>Our work paves the way for the realization of intrinsic magnetic topological states in MnBi2Te4 family and provides an ideal platform for achieving controllable and continuous TPTs.
arXiv Detail & Related papers (2025-03-08T03:46:54Z)
Dependence of scalar matter vacuum energy, induced by a magnetic topological defect, on the coupling to space-time curvature [0.0]
In the flat space-time, the total induced vacuum energy does not depend on the coupling $(xi)$ of the scalar field's interaction with the space-time curvature.<n>We have shown that in the flat space-time, the total induced vacuum energy does not depend on the coupling $xi$ in flat space-time.
arXiv Detail & Related papers (2024-12-01T21:01:23Z)
Quantum electrodynamics of lossy magnetodielectric samples in vacuum: modified Langevin noise formalism [55.2480439325792]
We analytically derive the modified Langevin noise formalism from the established canonical quantization of the electromagnetic field in macroscopic media. We prove that each of the two field parts can be expressed in term of particular bosonic operators, which in turn diagonalize the electromagnetic Hamiltonian.
arXiv Detail & Related papers (2024-04-07T14:37:04Z)
Unveiling the Quantum Toroidal Dipole [41.99844472131922]
We present a complete quantum-mechanical formalism for the TD in a nanostructure.<n>We propose the first spectroscopic method for its direct measurement.<n>This provides a clear experimental blueprint to unveil, measure, and characterize this elusive third multipole moment.
arXiv Detail & Related papers (2024-01-26T13:31:32Z)
The Fermionic Entanglement Entropy and Area Law for the Relativistic Dirac Vacuum State [44.99833362998488]
We consider the fermionic entanglement entropy for the free Dirac field in a bounded spatial region of Minkowski spacetime. An area law is proven in the limiting cases where the volume tends to infinity and/or the regularization length tends to zero.
arXiv Detail & Related papers (2023-10-05T12:08:03Z)
Induced vacuum energy density of quantum charged scalar matter in the background of an impenetrable magnetic tube with the Neumann boundary condition [0.0]
We consider vacuum polarization of charged scalar matter field outside the tube with magnetic flux inside. We show that vacuum energy is periodic in the value of the magnetic flux of the tube. It is shown that the value of the induced vacuum energy density in the case of the Neumann boundary condition is greater than in the case of the Dirichlet boundary condition.
arXiv Detail & Related papers (2022-12-07T17:36:13Z)
Magnetic flux in the vacuum of quantum bosonic matter in the cosmic string background [0.0]
The relativistic spin-0 matter field is quantized in the background of a straight cosmic string with nonvanishing transverse size. The role of the bound states in the spectrum of solutions to the Fock-Klein-Gordon equation is elucidated. The dependence of the induced vacuum magnetic flux on the string flux and tension, as well as on the transverse size of the string, is analyzed.
arXiv Detail & Related papers (2022-08-12T17:46:03Z)
Spin-1/2 particles under the influence of a uniform magnetic field in the interior Schwarzschild solution [62.997667081978825]
relativistic wave equation for spin-1/2 particles in the interior Schwarzschild solution in the presence of a uniform magnetic field is obtained. Results are relevant to the physics of the interior of neutron stars, where both the gravitational and the magnetic fields are very intense.
arXiv Detail & Related papers (2021-11-30T14:46:00Z)
Induced vacuum magnetic field in the cosmic string background [0.0]
We find that a magnetic field is induced in the vacuum and that a sheath in the form of a tube of the magnetic flux lines encloses a cosmic string. The dependence of the induced vacuum magnetic field strength on the string flux and tension, as well as on the transverse size of the string, is unambiguously determined.
arXiv Detail & Related papers (2021-03-10T17:47:05Z)
Gravity Probe Spin: Prospects for measuring general-relativistic precession of intrinsic spin using a ferromagnetic gyroscope [51.51258642763384]
An experimental test at the intersection of quantum physics and general relativity is proposed. The behavior of intrinsic spin in spacetime is an experimentally open question. A measurement is possible by using mm-scale ferromagnetic gyroscopes in orbit around the Earth.
arXiv Detail & Related papers (2020-06-16T17:18:44Z)

This list is automatically generated from the titles and abstracts of the papers in this site.