Zero Field Hall Effect in (2+1)-dimensional QED
نویسندگان
چکیده
منابع مشابه
Zero-Field Hall Effect in (2+1)-dimensional QED
In three-dimensional QED, a quantum Hall effect occurs in the absence of any magnetic field. We give a simple and transparent explanation. In solid-state physics, the Hall conductivity for rational magnetic flux is expected to be given by a Chern number. In our field-free situation, however, the conductivity is ±1/2 in natural units. We explain why the integrality of the conductivity breaks dow...
متن کاملZero-point field induced mass vs. QED mass renormalization
Haisch and Rueda have recently proposed a model in which the inertia of charged particles is a consequence of their interaction with the electromagnetic zero-point field. This model is based on the observation that in an accelerated frame the momentum distribution of vacuum fluctuations is not isotropic. We analyze this issue through standard techniques of relativistic field theory, first by re...
متن کاملZero-Point Field, QED Coherence, Living Systems and Biophotons Emission
Living organisms are high ordered and organized systems accumulating and successively using low entropy energy to support all the processes needed for life. This low level of entropy is a required condition in order to make possible the use of endogenous energy for producing, for example, mechanical work. The commonly accepted picture of condensed matter physics, exclusively considering the per...
متن کاملZero Field Hall Effect for Dirac Fermions in an Edge Device
The integral QHE for Schrödinger electrons (particles described by a Schrödinger operator) in strong magnetic fields results in quantisation of conductance. It is well-known by now that the remarkable stability of this effect can be traced back to its topological nature: the conductance is given by the Chern number of an adiabatic connection. We describe a QHE for Dirac fermions (particles desc...
متن کاملFractional quantum Hall states at zero magnetic field.
We present a simple prescription to flatten isolated Bloch bands with a nonzero Chern number. We first show that approximate flattening of bands with a nonzero Chern number is possible by tuning ratios of nearest-neighbor and next-nearest-neighbor hoppings in the Haldane model and, similarly, in the chiral-π-flux square lattice model. Then we show that perfect flattening can be attained with fu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advances in Theoretical and Mathematical Physics
سال: 2008
ISSN: 1095-0761,1095-0753
DOI: 10.4310/atmp.2008.v12.n3.a1