Numerical simulations of two incommensurate tight-binding chains reveal a mobility edge with abrupt localization onset in higher-energy states, enhanced by weak magnetic fields but reversed by strong fields.
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In an off-diagonal Aubry-André-Harper chain, transport signatures distinguish edge states, in-band bulk states, and band-edge bulk states by their system-size dependence, resonance broadening, and dephasing sensitivity.
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Quantum localization in incommensurate tight-binding chains
Numerical simulations of two incommensurate tight-binding chains reveal a mobility edge with abrupt localization onset in higher-energy states, enhanced by weak magnetic fields but reversed by strong fields.
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Transport characteristics of bulk and edge states in an off-diagonal Aubry--Andr\'e--Harper chain
In an off-diagonal Aubry-André-Harper chain, transport signatures distinguish edge states, in-band bulk states, and band-edge bulk states by their system-size dependence, resonance broadening, and dephasing sensitivity.