Dirac equation for quasi-particles in graphene in an external electromagnetic field and chiral anomaly

Physics – Condensed Matter – Mesoscale and Nanoscale Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

6 pages, 1 figure

Scientific paper

There is evidence for existence of massless Dirac quasi-particles in graphene, which satisfy Dirac equation in (1+2) dimensions near the so called Dirac points which lie at the corners at the graphene's brilluoin zone. It is shown that parity operator in (1+2) dimensions play an interesting role and can be used for defining conserved chiral currents [there is no gamma^5 in (1+2) dimensions]. It is shown that the "anomalous" current induced by an external gauge field can be related to the anomalous divergence of an axial vector current which arises due to quantum radiative corrections provided by triangular loop Feynman diagrams in analogy with the corresponding axial anomaly in (1+3) dimensions.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Dirac equation for quasi-particles in graphene in an external electromagnetic field and chiral anomaly does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dirac equation for quasi-particles in graphene in an external electromagnetic field and chiral anomaly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dirac equation for quasi-particles in graphene in an external electromagnetic field and chiral anomaly will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-678290

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.