Remarks on inverse electrodynamics
نویسندگان
چکیده
We study physical aspects for a new nonlinear electrodynamics (inverse electrodynamics). It is shown that this displays the vacuum birefringence phenomenon in presence of external magnetic field, hence we compute bending light. Afterwards lowest-order modification to interaction energy within framework gauge-invariant but path-dependent variables formalism. Our calculations show contains long-range (${1 \mathord{\left/ {\vphantom {1 {{r^5}}}} \right.\kern-\nulldelimiterspace} {{r^5}}}$-type) correction Coulomb potential.
منابع مشابه
Some remarks on inverse Wiener index problem
The sum of distances between all pairs of vertices W (G) in a connected graph G as a graph invariant was first introduced by Wiener [9] in 1947. He observed a correlation between boiling points of paraffins and this invariant, which has later become known as Wiener index of a graph. Today, the Wiener index is one of the most widely used descriptors in chemical graph theory. Due to its strong co...
متن کاملRemarks on Self-Inverse Quadratic Permutation Polynomials
Conditions for a quadratic permutation polynomial (QPP) to be self-inverse over the ring Zm of modular integers are given. If m = 2n, necessary and sufficient conditions for a QPP to be self-inverse are determined. Additional properties of QPP over modular integers as well as examples of monomial permutation polynomials are also provided. Mathematics Subject Classification: 12E10, 11B83
متن کاملRemarks on the inverse spectral theory for singularly perturbed operators
Let A be an unbounded from above self-adjoint operator in a separable Hilbert space H and EA(·) its spectral measure. We discuss the inverse spectral problem for singular perturbations à of A (à and A coincide on a dense set in H). We show that for any a ∈ R there exists a singular perturbation à of A such that à and A coincide in the subspace EA((−∞, a))H and simultaneously à has an additional...
متن کاملRemarks on microperiodic multifunctions
It is well known that a microperiodic function mapping a topological group into reals, which is continuous at some point is constant. We introduce the notion of a microperiodic multifunction, defined on a topological group with values in a metric space, and study regularity conditions implying an analogous result. We deal with Vietoris and Hausdorff continuity concepts.Stability of microperiodi...
متن کاملSome remarks on the sum of the inverse values of the normalized signless Laplacian eigenvalues of graphs
Let G=(V,E), $V={v_1,v_2,ldots,v_n}$, be a simple connected graph with $%n$ vertices, $m$ edges and a sequence of vertex degrees $d_1geqd_2geqcdotsgeq d_n>0$, $d_i=d(v_i)$. Let ${A}=(a_{ij})_{ntimes n}$ and ${%D}=mathrm{diag }(d_1,d_2,ldots , d_n)$ be the adjacency and the diagonaldegree matrix of $G$, respectively. Denote by ${mathcal{L}^+}(G)={D}^{-1/2}(D+A) {D}^{-1/2}$ the normalized signles...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: European Physical Journal C
سال: 2021
ISSN: ['1434-6044', '1434-6052']
DOI: https://doi.org/10.1140/epjc/s10052-021-09706-4