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Related papers: Analogy between rotation and density for Dirac fer…

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We consider the effects of an external magnetic field on rotating fermions in 1+2,3 dimensions. The dual effect of a rotation parallel to the magnetic field causes a net increase in the fermionic density by centrifugation, which follows…

High Energy Physics - Phenomenology · Physics 2018-07-18 Yizhuang Liu , Ismail Zahed

We study a confined system of Dirac fermions in the presence of inhomogeneous magnetic field. Splitting the system into different regions, we determine their corresponding energy spectrum solutions. We underline their physical properties by…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 Ahmed Jellal , Abderrahim El Mouhafid

Recently, it has been proposed a spacetime noncommutativity that involves spin degrees of freedom, here called "spin noncommutativity". One of the motivations for such a construction is that it preserves Lorentz invariance, which is…

High Energy Physics - Theory · Physics 2015-06-05 A. F. Ferrari , M. Gomes , V. G. Kupriyanov , C. A. Stechhahn

We consider the Dirac field uniformly rotating with angular velocity $\Omega$ and also subject to the constant magnetic field $B$ directed along the rotation axis. The causal states are constrained to the interior of the light cylinder of…

High Energy Physics - Phenomenology · Physics 2024-10-22 Matteo Buzzegoli , Kirill Tuchin

We show how it is possible to trap two-dimensional massless Dirac fermions in spatially inhomogeneous magnetic fields, as long as the formed magnetic quantum dot (or ring) is of a slowly decaying nature. It is found that a modulation of the…

Mesoscale and Nanoscale Physics · Physics 2016-10-11 C. A. Downing , M. E. Portnoi

We study the synchrotron radiation emitted by a charged fermion, rotating as a part of a larger system, in a constant magnetic field $B$ parallel to the axis of rotation. The rotation is classical and independent of the magnetic field. The…

High Energy Physics - Phenomenology · Physics 2023-06-21 Matteo Buzzegoli , Jonathan D. Kroth , Kirill Tuchin , Nandagopal Vijayakumar

The effect of an exponentially decaying magnetic field on the dynamics of Dirac fermions in 3+1 dimensions is explored. The spatially decaying magnetic field is assumed to be aligned in the third direction, and is defined by…

High Energy Physics - Phenomenology · Physics 2013-05-30 N. Sadooghi , F. Taghinavaz

We present a novel perspective to characterize the chiral magnetic and related effects in terms of angular decomposed modes. We find that the vector current and the chirality density are connected through a surprisingly simple relation for…

High Energy Physics - Phenomenology · Physics 2020-07-31 Kenji Fukushima , Takuya Shimazaki , Lingxiao Wang

We present a formalism to calculate the orbital magnetization of interacting Dirac fermions under a magnetic field. In this approach, the divergence difficulty is overcome with a special limit of the derivative of the thermodynamic…

Strongly Correlated Electrons · Physics 2017-09-05 Xin-Zhong Yan , C. S. Ting

We investigate disorder effects on Landau levels in Dirac electron systems with the use of a non-Hermitian quasiparticle Hamiltonian formalism. This formalism reveals that spin-dependent scattering rates induce the spectrum collapse of…

Mesoscale and Nanoscale Physics · Physics 2021-06-07 Taiki Matsushita , Yuki Nagai , Satoshi Fujimoto

We study the properties of a hot and magnetized quark matter in a rotating cylinder in the presence of a constant magnetic field. To do this, we solve the corresponding Dirac equation using the Ritus eigenfunction method. This leads to the…

High Energy Physics - Phenomenology · Physics 2022-01-05 N. Sadooghi , S. M. A. Tabatabaee , F. Taghinavaz

We discuss the orbital magnetism and the Hall effect in the weak magnetic field in two dimensional Dirac fermion systems with energy gap. This model is related to the graphene sheet, organic conductors, and $d$-density wave superconductors.…

Strongly Correlated Electrons · Physics 2007-11-06 Masaaki Nakamura

We explored the interplay between magnetic field and rotation in the de Hass - van Alphen oscillation. The effect is found to be reduced because of the re-weighting of different states within the same Landau level by rotation energy. The…

High Energy Physics - Phenomenology · Physics 2023-05-03 Shu-Yun Yang , Ren-Da Dong , Defu Hou , Hai-Cang Ren

We investigated the relativistic dynamics of oppositely charged two fermions interacting with an external uniform magnetic field. We chose the interaction of each fermion with the external magnetic field in the symmetric gauge, and obtained…

General Physics · Physics 2020-12-08 Abdullah Guvendi , Semra Gurtas Dogan

In the present work, the energy spectrum and solution of Dirac's equation for the charged and neutral fermions taking into account interaction of the anomalous magnetic moments of particles with the external field are obtained. The total…

High Energy Physics - Phenomenology · Physics 2007-05-23 I. Mamsourov , H. Goudarzi

Working with a magnetic field periodic along $Oz$ and decaying in time, we deal with the Dirac-type equation characterizing the fermions evolving in magnetar's crust. For ultra-relativistic particles, one can employ the perturbative…

General Relativity and Quantum Cosmology · Physics 2015-06-04 Marina--Aura Dariescu , Ciprian Dariescu

The Dirac equation, in the field of a traveling circularly polarized electromagnetic wave and a constant magnetic field, has singular solutions, corresponding the expansion of energy in vicinity of some singular point. These solutions…

Quantum Physics · Physics 2014-05-15 Boris V. Gisin

We introduce a unique model for a fermion antifermion pair interacting through Dirac oscillator interaction in the presence of external uniform magnetic field. In order to acquire a non perturbative energy spectrum for such a system we…

General Physics · Physics 2021-02-10 Abdullah Guvendi

We investigate theoretically the dynamics of magnetization coupled to the surface Dirac fermions of a three dimensional topological insulator, by deriving the Landau-Lifshitz-Gilbert (LLG) equation in the presence of charge current. Both…

Mesoscale and Nanoscale Physics · Physics 2014-11-20 Takehito Yokoyama , Jiadong Zang , Naoto Nagaosa

We study fermions in a magnetic field in a finite size cylinder. With the boundary condition for the fermion flux, we show that the energy spectra and the wave-functions are modified by the finite size effect; the boundary makes the…

High Energy Physics - Phenomenology · Physics 2017-10-04 Hao-Lei Chen , Kenji Fukushima , Xu-Guang Huang , Kazuya Mameda
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