Constraint equation for the lowest Landau level in the fractional quantum Hall system.

نویسندگان

  • Sakita
  • Sheng
  • Su
چکیده

We apply the singular gauge transformation to the constraint equation for the lowest Landau level to investigate the generic properties of the quasiparticles of the fractional quantum Hall system by using the collective-field-theory approach. It shows a transparent connection with Laughlin s wave functions. If we take an average over the wave functional for the constraint equation, the resulting equation can be interpreted as the vortex equation for the fractionally charged quasiparticles. By introducing a generalized duality transformation, p(density)-8(phase) transformation, we can obtain the fractional statistics as well as the hierarchy scheme from the constraint equation.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Constraint for the Lowest Landau Level and the Effective Field Theory Approach for the Fractional Quantum Hall System

By applying the Dirac quantization method, we build the constraint that all electrons are in the lowest Landau level into the Chern-Simons field theory approach for the fractional quantum Hall system and show that the constraint can be transmuted from hierarchy to hierarchy. For a finite system, we derive that the action for each hierarchy can be split into two parts: a surface part provides th...

متن کامل

Chern-Simons field theory of two-dimensional electrons in the lowest Landau level.

We propose a fermion Chern-Simons field theory describing two-dimensional electrons in the lowest Landau level. This theory is constructed with a complete set of states, and the lowest Landau level constraint is enforced through a δ-functional described by an auxiliary field λ. Unlike the field theory constructed directly with the states in the lowest Landau level, this theory allows one utiliz...

متن کامل

No end of tricks: electrons in the fractional quantum Hall regime

In the strong magnetic field fractional quantum Hall regime, electrons in a twodimensional electron system are confined to their lowest Landau level. Because of the macroscopic Landau level degeneracy nearly all physical properties at low energies and temperatures are then entirely determined by electron-electron interactions. The properties of these non-Fermi-liquid electronic systems continue...

متن کامل

Robust fractional quantum Hall effect in the N=2 Landau level in bilayer graphene

The fractional quantum Hall effect is a canonical example of electron-electron interactions producing new ground states in many-body systems. Most fractional quantum Hall studies have focussed on the lowest Landau level, whose fractional states are successfully explained by the composite fermion model. In the widely studied GaAs-based system, the composite fermion picture is thought to become u...

متن کامل

Constraint for the lowest Landau level and the Chern-Simons field-theory approach for the fractional quantum Hall effect: Infinite and finite systems.

We build the constraint that all electrons are in the lowest Landau level into the Chern-Simons field theory approach for the fractional quantum Hall system. We show that the constraint can be transmitted from one hierarchical state to the next. As a result, we derive in generic the equations of the fractionally charged vortices ( quasi-particles ) for arbitrary hierarchy filling. For a finite ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Physical review. B, Condensed matter

دوره 44 20  شماره 

صفحات  -

تاریخ انتشار 1991