Mode Decomposed Chiral Magnetic Effect and Rotating Fermions
- URL: http://arxiv.org/abs/2004.05852v2
- Date: Thu, 30 Jul 2020 01:43:33 GMT
- Title: Mode Decomposed Chiral Magnetic Effect and Rotating Fermions
- Authors: Kenji Fukushima, Takuya Shimazaki, Lingxiao Wang
- Abstract summary: We find that the vector current and the chirality density are connected through a surprisingly simple relation for all the modes and any mass.
For demonstration we give an intuitive account for a nonzero density emerging from a combination of rotation and magnetic field.
- Score: 19.000723109146197
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: 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 all the modes and any mass, which defines the mode decomposed
chiral magnetic effect in such a way free from the chiral chemical potential.
The mode decomposed formulation is useful also to investigate properties of
rotating fermions. For demonstration we give an intuitive account for a nonzero
density emerging from a combination of rotation and magnetic field as well as
an approach to the chiral vortical effect at finite density.
Related papers
- Generalized Gouy Rotation of Electron Vortex beams in uniform magnetic fields [54.010858975226945]
We study the dynamics of EVBs in magnetic fields using exact solutions of the relativistic paraxial equation in magnetic fields.
We provide a unified description of different regimes under generalized Gouy rotation, linking the Gouy phase to EVB rotation angles.
This work offers new insights into the dynamics of EVBs in magnetic fields and suggests practical applications in beam manipulation and beam optics of vortex particles.
arXiv Detail & Related papers (2024-07-03T03:29:56Z) - Simulation of chiral motion of excitation within the ground-state manifolds of neutral atoms [0.4218593777811082]
Laser-induced gauge fields in neutral atoms serve as a means of mimicking the effects of a magnetic field.
We propose a method to generate chiral motion in atomic excitations within the neutral atomic ground-state manifold.
The proposed method can be readily extended to implement a hexagonal neutral atom lattice, serving as the fundamental unit in realizing the Haldane model.
arXiv Detail & Related papers (2024-06-17T07:53:37Z) - Dipole-dipole-interaction-induced entanglement between two-dimensional ferromagnets [0.0]
We show that the coupling of the uniform magnon modes can be expressed using four squeezing parameters.
We predict that for infinitely large two-dimensional ferromagnets, the dipole-dipole interaction does not lead to significant long-range entanglement.
arXiv Detail & Related papers (2024-03-20T07:34:02Z) - Magnetic polarons beyond linear spin-wave theory: Mesons dressed by
magnons [0.0]
We develop a quantitative theoretical formalism to describe magnetic polarons in the strong coupling regime.
We construct an effective Hamiltonian with weak coupling to the spin-wave excitations in the background.
Our work paves the way for exploring magnetic polarons out-of equilibrium or in frustrated systems.
arXiv Detail & Related papers (2024-01-31T19:14:17Z) - Measuring the magnon-photon coupling in shaped ferromagnets: tuning of
the resonance frequency [50.591267188664666]
cavity photons and ferromagnetic spins excitations can exchange information coherently in hybrid architectures.
Speed enhancement is usually achieved by optimizing the geometry of the electromagnetic cavity.
We show that the geometry of the ferromagnet plays also an important role, by setting the fundamental frequency of the magnonic resonator.
arXiv Detail & Related papers (2022-07-08T11:28:31Z) - Controllable nonreciprocal optical response and handedness-switching in
magnetized spin orbit coupled graphene [0.0]
We calculate the dynamical optical conductivity and permittivity tensor of a magnetized graphene layer with Rashba spin orbit coupling (SOC)
Our results reveal a transverse Hall conductivity correlated with the usual nonreciprocal longitudinal conductivity.
It is found that the magnetized spin orbit coupled graphene supports strong handedness-switchings, effectively controlled by varying the chemical potential and magnetization strength with respect to the SOC strength.
arXiv Detail & Related papers (2022-01-05T19:00:02Z) - Dispersive readout of molecular spin qudits [68.8204255655161]
We study the physics of a magnetic molecule described by a "giant" spin with multiple $d > 2$ spin states.
We derive an expression for the output modes in the dispersive regime of operation.
We find that the measurement of the cavity transmission allows to uniquely determine the spin state of the qudits.
arXiv Detail & Related papers (2021-09-29T18:00:09Z) - Rotating Majorana Zero Modes in a disk geometry [75.34254292381189]
We study the manipulation of Majorana zero modes in a thin disk made from a $p$-wave superconductor.
We analyze the second-order topological corner modes that arise when an in-plane magnetic field is applied.
We show that oscillations persist even in the adiabatic phase because of a frequency independent coupling between zero modes and excited states.
arXiv Detail & Related papers (2021-09-08T11:18:50Z) - 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) - Spin current generation and control in carbon nanotubes by combining
rotation and magnetic field [78.72753218464803]
We study the quantum dynamics of ballistic electrons in rotating carbon nanotubes in the presence of a uniform magnetic field.
By suitably combining the applied magnetic field intensity and rotation speed, one can tune one of the currents to zero while keeping the other one finite, giving rise to a spin current generator.
arXiv Detail & Related papers (2020-01-20T08:54:56Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.