Zilch vortical effect

Rotating photon gas exhibits a chirality separation along the angular velocity which is manifested through a generation of helicity and zilch currents. In this paper we study this system using the corresponding Wigner function and construct elements of the covariant chiral kinetic theory for photons from first principles. The Wigner function is solved order-by-order in ħ and the unconstrained terms are fixed by matching with quantum field theory results. We further consider the zilch and helicity currents and show that both manifestations of the chirality transport originate in the Berry phase of photons similarly to other chiral effects. Constructing the kinetic description from the Wigner function we find that the frame vector needed to fix the definition of spin of a massless particle is, in fact, the vector of the residual gauge freedom for the free Maxwell theory. We also briefly comment on the possible relation between vortical responses in rotating systems of massless particles and the anomalies of underlying quantum field theory.

show abstract

“…see [27,28]. However, the relation between CVE and ZVE in systems of photons has not been studied in the literature in details.…”

Section: Jhep10(2020)117mentioning

confidence: 99%

Zilch vortical effect, Berry phase, and kinetic theory

Huang

Mitkin

Sadofyev

et al. 2020

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…In fact, such an optical setup has been intensely investigated in quantum optics and laser physics (and also in the quantum field theory context too, see Ref. [93] for a recent work), and it has been known that the Floquet theory is a powerful tool (for a pedagogical review on the Floquet theory, see Ref. [9]).…”

Section: Floquet Theorymentioning

confidence: 99%

Extreme matter in electromagnetic fields and rotation

Fukushima

2019

Progress in Particle and Nuclear Physics

View full text Add to dashboard Cite

We look over recent developments on our understanding about relativistic matter under external electromagnetic fields and mechanical rotation. I review various calculational approaches for concrete physics problems, putting my special emphasis on generality of the method and the consequence, rather than going into phenomenological applications in a specific field of physics. The topics covered in this article include static problems with magnetic fields, dynamical problems with electromagnetic fields, and phenomena induced by rotation.

show abstract

“…The mixed gauge gravitational anomaly has been realized as the origin for some interesting transport phenomena both in high energy and condensed matter physics[12][13][14][15][16].…”

mentioning

confidence: 99%

Magneto-transport in a chiral fluid from kinetic theory

Abbasi

Taghinavaz

Tavakol

2019

J. High Energ. Phys.

View full text Add to dashboard Cite

We argue that in order to study the magneto-transport in a relativistic Weyl fluid, it is needed to take into account the associated quantum corrections, namely the side-jump effect, at least to second order. To this end, we impose Lorentz invariance to a system of free Weyl fermions in the presence of the magnetic field and find the second order correction to the energy dispersion. By developing a scheme to compute the integrals in the phase space, we show that the mentioned correction has non-trivial effects on the thermodynamics of the system. Specifically, we compute the expression of the negative magnetoresistivity in the system from the enthalpy density in equilibrium. Then in analogy with Weyl semimetal, in the framework of the chiral kinetic theory and under the relaxation time approximation, we explicitly compute the magneto-conductivities, at low temperature limit (T ≪ µ). We show that the conductivities obey a set of Ward identities which follow from the generating functional including the Chern-Simons part. * abbasi@ipm.ir † ftaghinavaz@ipm.ir ‡ omid.

show abstract

Zilch vortical effect

Cited by 41 publications

References 62 publications

Zilch vortical effect, Berry phase, and kinetic theory

Zilch vortical effect, Berry phase, and kinetic theory

Extreme matter in electromagnetic fields and rotation

Magneto-transport in a chiral fluid from kinetic theory

Contact Info

Product

Resources

About