Path integral formalism for finite-temperature field theory and
generation of chiral currents
- URL: http://arxiv.org/abs/2303.02145v1
- Date: Fri, 3 Mar 2023 18:52:03 GMT
- Title: Path integral formalism for finite-temperature field theory and
generation of chiral currents
- Authors: Yurii A. Sitenko
- Abstract summary: I find the persisting vector and axial currents that are generated in quantum chiral fermionic systems.
The role of the explicit violation of chiral symmetry by fermion mass is elucidated.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: With the use of the path integral formalism for finite-temperature field
theory, I find the persisting vector and axial currents that are generated in
quantum chiral fermionic systems. The role of the explicit violation of chiral
symmetry by fermion mass is elucidated. For the case of quantum fermionic
systems in the backround of an arbitrary smooth magnetic field, I show that the
chiral magnetic effect is substantiated on equally the same footing as the
chiral separation effect is. Both effects remain unaltered if chiral symmetry
is violated by mass.
Related papers
- Finite time path field theory perturbative methods for local quantum spin chain quenches [0.0]
We discuss local magnetic field quenches using perturbative methods of finite time path field theory.
We show how to: i) calculate the basic "bubble" diagram in the Loschmidt echo of a quenched chain to any order in the perturbation; ii) resum the generalized Schwinger-Dyson equation for the fermion two point retarded functions in the "bubble" diagram.
arXiv Detail & Related papers (2024-09-05T18:00:08Z) - Interacting chiral fermions on the lattice with matrix product operator norms [37.69303106863453]
We develop a Hamiltonian formalism for simulating interacting chiral fermions on the lattice.
The fermion doubling problem is circumvented by constructing a Fock space endowed with a semi-definite norm.
We demonstrate that the scaling limit of the free model recovers the chiral fermion field.
arXiv Detail & Related papers (2024-05-16T17:46:12Z) - Quantum electrodynamics of lossy magnetodielectric samples in vacuum: modified Langevin noise formalism [55.2480439325792]
We analytically derive the modified Langevin noise formalism from the established canonical quantization of the electromagnetic field in macroscopic media.
We prove that each of the two field parts can be expressed in term of particular bosonic operators, which in turn diagonalize the electromagnetic Hamiltonian.
arXiv Detail & Related papers (2024-04-07T14:37:04Z) - Twisted charged particles in the uniform magnetic field with broken symmetry [0.0]
We present a theoretical description of charged particles with nonzero projection of the orbital angular momentum (OAM) in a uniform magnetic field with broken axial symmetry.
We analyze the asymmetric Hamiltonian from an algebraic point of view and show how the OAM projection of the twisted state is modified by symmetry breaking.
arXiv Detail & Related papers (2024-03-30T08:34:55Z) - The quantum Hall effect under the influence of gravity and inertia: A
unified approach [44.99833362998488]
We examine how both the integer and the fractional quantum Hall effects behave under a combined influence of gravity and inertia.
The general Hamiltonian for describing the combined effect of gravity, rotation and inertia on the electrons of a Hall sample is then built and the eigenstates are obtained.
arXiv Detail & Related papers (2024-03-11T18:01:55Z) - Fermion exchange in ring polymer self-consistent field theory [0.0]
A mapping is made between fermion exchange and excluded volume using polymer self-consistent field theory.
Quantum particles are known to be exactly representable in classical statistical mechanics as ring polymers.
arXiv Detail & Related papers (2024-02-15T22:58:57Z) - Non-Hermitian fermions with effective mass [0.0]
In seeking a Schr"odinger-like theory with PT symmetry is appropriate to assume a complex potential.
In seeking a Schr"odinger-like theory with PT symmetry is appropriate to assume a complex potential.
arXiv Detail & Related papers (2023-02-09T15:45:01Z) - Entanglement resolution of free Dirac fermions on a torus [68.8204255655161]
We first evaluate the SRE for massless Dirac fermions in a system at finite temperature and size.
The charge-dependent entropies turn out to be equally distributed among all the symmetry sectors at leading order.
arXiv Detail & Related papers (2022-12-14T14:54:35Z) - 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) - Chiral Dirac-like fermion in spin-orbit-free antiferromagnetic
semimetals [21.85167942898987]
Dirac semimetal is a phase of matter, whose elementary excitation is described by the relativistic Dirac equation.
Inspired by the flavor symmetry in particle physics, we propose a massless Dirac-like equation yet linking two Weyl fields with the identical chirality.
Our work reveals a counterpart of the flavor symmetry in magnetic electronic systems, leading to further possibilities of emergent phenomena in quantum materials.
arXiv Detail & Related papers (2021-07-21T09:56:14Z) - General quantum-mechanical solution for twisted electrons in a uniform
magnetic field [68.8204255655161]
A theory of twisted (and other structured) paraxial electrons in a uniform magnetic field is developed.
The observable effect of a different behavior of relativistic Laguerre-Gauss beams with opposite directions of the orbital angular momentum penetrating from the free space into a magnetic field is predicted.
arXiv Detail & Related papers (2020-05-13T16:35:10Z)
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.