Solitons with Integer Fermion Number

نویسنده

Alfred S. Goldhaber

چکیده

Necessary and sufficient conditions are found for any object in 3+1 dimensions to have integer rather than fractional fermion number. Nontrivial examples include the JackiwRebbi monopole and the already well studied Su-Schrieffer-Heeger soliton, both displaying integer multiples of elementary charges in combinations that normally are forbidden.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Fermionic bright soliton in a boson-fermion mixture

We use a time-dependent dynamical mean-field-hydrodynamic model to study the formation of fermionic bright solitons in a trapped degenerate Fermi gas mixed with a Bose-Einstein condensate in a quasi-onedimensional cigar-shaped geometry. Due to a strong Pauli-blocking repulsion among spin-polarized fermions at short distances there cannot be bright fermionic solitons in the case of repulsive bos...

متن کامل

Spin, Statistics and Charge of Solitons in (2+1)-Dimensional Theories

Abstract. General topologically invariant microscopical expressions for quantum numbers of particlelike solitons (“skyrmions”) are derived for a class of (2+1)D models. Skyrmions are either half-integer spin fermions with odd electric charge or integer spin bosons with even charge. So they cannot be Anderson’s spinons or holons. General results are exemplified by a square lattice model reminisc...

متن کامل

Fermion Stabilization of Solitons in 1 + 1 Dimensions

We find static solitons stabilized by quantum corrections in a (1+1)-dimensional model with a scalar field chirally coupled to fermions. This model does not support classical solitons. We compute the renormalized energy functional including one-loop quantum corrections. We carry out a variational search for a configuration that minimizes the energy functional. We find a nontrivial configuration...

متن کامل

Azimuthons: spatially modulated vortex solitons.

We introduce a novel class of spatially localized self-trapped ringlike singular optical beams in nonlinear media, the so-called azimuthons, which appear due to a continuous azimuthal deformation of vortex solitons. We demonstrate that the azimuthons are characterized by two independent integer indices, the topological charge m and the number N of the intensity peaks along the ring. Each solito...

متن کامل