Published June 2008 | Version Submitted
Journal Article Open

The Fractal Dimension of the Spectrum of the Fibonacci Hamiltonian

Abstract

We study the spectrum of the Fibonacci Hamiltonian and prove upper and lower bounds for its fractal dimension in the large coupling regime. These bounds show that as λ→∞,dim(σ(Hλ))⋅logλ converges to an explicit constant, log(1+2–√)≈0.88137. We also discuss consequences of these results for the rate of propagation of a wavepacket that evolves according to Schrödinger dynamics generated by the Fibonacci Hamiltonian.

Additional Information

© 2008 Springer-Verlag. Received: 2 May 2007; Accepted: 20 August 2007; First Online: 04 March 2008. D. D. was supported in part by NSF grant DMS-0653720. M. E. was supported by NSF grant DMS-CAREER-0449973 We are grateful for the On-Line Encylopedia of Integer Sequences and the Inverse Symbolic Calculator, both of which assisted our hunt for f∗.

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Additional details

Identifiers

Eprint ID
99743
Resolver ID
CaltechAUTHORS:20191107-141242740

Related works

Funding

NSF
DMS-0653720
NSF
DMS-0449973

Dates

Created
2019-11-08
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Updated
2021-11-16
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