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Quantum transition in bilayer states

V. Pasquier

cond-mat.mes-hallarXiv:cond-mat/0205458

Abstract

I study the possible phase transitions when two layers at filling factor νt=1 are gradually separated. In the bosonic case the system should undergo a pairing transition from a Fermi liquid to an incompressible state. In the Fermionic case, the state evolves from an incompressible (1,1,1) state to a Fermi liquid. I speculate that there is an intermediate phase involving charge two quasiparticles.

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