Subband engineering even-denominator quantum Hall states

Subband engineering even-denominator quantum Hall states. Scarola, V., W., May, C., Peterson, M., R., & Troyer, M. Physical Review B, 82(12):121304, 9, 2010.

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Proposed even-denominator fractional quantum Hall effect (FQHE) states suggest the possibility of excitations with non-Abelian braid statistics. Recent experiments on wide square quantum wells observe even-denominator FQHE even under electrostatic tilt. We theoretically analyze these structures and develop a procedure to accurately test proposed quantum Hall wavefunctions. We find that tilted wells favor partial subband polarization to yield Abelian even-denominator states. Our results show that tilting quantum wells effectively engineers different interaction potentials allowing exploration of a wide variety of even-denominator states.

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 year = {2010},
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 abstract = {Proposed even-denominator fractional quantum Hall effect (FQHE) states suggest the possibility of excitations with non-Abelian braid statistics. Recent experiments on wide square quantum wells observe even-denominator FQHE even under electrostatic tilt. We theoretically analyze these structures and develop a procedure to accurately test proposed quantum Hall wavefunctions. We find that tilted wells favor partial subband polarization to yield Abelian even-denominator states. Our results show that tilting quantum wells effectively engineers different interaction potentials allowing exploration of a wide variety of even-denominator states.},
 bibtype = {article},
 author = {Scarola, V. W. and May, C. and Peterson, M. R. and Troyer, M.},
 doi = {10.1103/PhysRevB.82.121304},
 journal = {Physical Review B},
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}

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