Evolution of the nu = 1 Ground-State in Coupled Double Quantum Wells: Optical Evidence for Broken-Symmetry States

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dc.creatorManfra, Michael J.
dc.creatorPniower, Justin C.
dc.creatorGoldberg, Bennett B.
dc.creatorPinczuk, Aron
dc.creatorPellegrini, Vittorio
dc.creatorPfeiffer, Loren N.
dc.creatorWest, Ken W.
dc.date1998-09-28
dc.date.accessioned2026-07-07T03:11:35Z
dc.date.available2026-07-07T03:11:35Z
dc.descriptionWe present the first magneto-absorption studies of coupled electron double layers in the quantum Hall regime. Optical absorption spectra in the vicinity of total filling factor nu = 1 reveal intriguing behavior that have no analog in the single electron layer nu = 1 state and demonstrate the interplay between single-particle tunneling and inter-layer Coulomb effects. The spectra provide direct evidence of a ground-state that evolves from a region dominated by single-particle tunneling to a regime in which inter-layer Coulomb interactions determine the nature of the ground-state. Moreover the spectra provide the first direct evidence that the incompressible ground-state at nu = 1 in the many-body regime is not fully pseudospin polarized and is sensitive to the effects of quantum fluctuations in the pseudospin variable.
dc.description5 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/9809373
dc.identifierhttp://arxiv.org/abs/cond-mat/9809373
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28628
dc.subjectMesoscale and Nanoscale Physics
dc.titleEvolution of the nu = 1 Ground-State in Coupled Double Quantum Wells: Optical Evidence for Broken-Symmetry States
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