The doubling of the anomalous magnetic moment of electron in a very strong constant homogeneous electric field

2001 ◽  
Vol 93 (4) ◽  
pp. 860-864
Author(s):  
V. I. Ritus
Keyword(s):  
Electric Field ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Homogeneous Electric Field ◽  
Constant Homogeneous Electric Field

scholarly journals ON THE MYSTERY OF THE MISSING PIE IN GRAPHENE

2010 ◽  
Vol 24 (21) ◽  
pp. 2225-2233 ◽  
Author(s):  
PAOLA GIACCONI ◽  
ROBERTO SOLDATI
Keyword(s):  
Electric Field ◽  
Current Density ◽  
Effective Model ◽  
Electromagnetic Current ◽  
Homogeneous Electric Field ◽  
Dirac Theory ◽  
Massless Spinor ◽  
Constant Homogeneous Electric Field

We investigate the structure of the electromagnetic current density for the pseudorelativistic massless spinor effective model for graphene. It is shown that the pseudorelativistic planar massless Dirac theory in the presence of a constant homogeneous electric field actually leads to the recently measured value for the minimum quantum conductivity.

SCATTERING OF A SPIN-POLARIZED NEUTRAL FERMION WITH THE ANOMALOUS MAGNETIC MOMENT IN AN AHARONOV–CASHER CONFIGURATION

2008 ◽  
Vol 23 (15) ◽  
pp. 1093-1104 ◽  
Author(s):  
V. R. KHALILOV
Keyword(s):  
Electric Field ◽  
Cross Section ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Scattering Amplitude ◽  
Initial State ◽  
Massive Fermion ◽  
Neutral Fermion ◽  
Particle Spin ◽  
Spin Polarized

The scattering of a nonrelativistic neutral massive fermion having the anomalous magnetic moment (AMM) in an electric field of a uniformly charged long conducting thread aligned perpendicularly to the fermion motion is considered to study the so-called Aharonov–Casher (AC) effect by taking into account the particle spin. For this solution, the nonrelativistic Dirac–Pauli equation for a neutral massive fermion with AMM in (3+1) dimensions is found, which takes into account explicitly the particle spin and interaction between AMM of moving fermion and the electric field. Expressions for the scattering amplitude and the cross-section are obtained for spin-polarized massive neutral fermion scattered off the above conducting thread. We conclude that the scattering amplitude and cross-section of spin-polarized massive neutral fermions are influenced by the interaction of AMM of moving neutral fermions with the electric field as well as by the polarization of fermion beam in the initial state.

scholarly journals EFFECTIVE ACTION FOR FERMIONS WITH ANOMALOUS MAGNETIC MOMENT FROM FOLDY–WOUTHUYSEN TRANSFORMATION

2013 ◽  
Vol 28 (09) ◽  
pp. 1350029 ◽  
Author(s):  
A. BARDUCCI ◽  
R. GIACHETTI
Keyword(s):  
Partition Function ◽  
Electric Field ◽  
Closed Form ◽  
Magnetic Moment ◽  
Effective Action ◽  
Anomalous Magnetic Moment ◽  
Finite Temperature ◽  
Neutral Particles

In this paper, we calculate the effective action for neutral particles with anomalous magnetic moment in an external magnetic and electric field. We show that we can take advantage from the Foldy–Wouthuysen transformation (FWT) for such systems, determined in our previous works: indeed, by this transformation we have explicitly evaluated the diagonalized Hamiltonian, allowing to present a closed form for the corresponding effective action and for the partition function at finite temperature from which the thermodynamical potentials can be calculated.

Sign in / Sign up

Export Citation Format

Share Document